Memory and learning

وَقَالَ ٱلَّذِينَ أُوتُواْ ٱلۡعِلۡمَ وَٱلۡإِيمَٰنَ لَقَدۡ لَبِثۡتُمۡ فِي كِتَٰبِ ٱللَّهِ إِلَىٰ يَوۡمِ ٱلۡبَعۡثِۖ فَهَٰذَا يَوۡمُ ٱلۡبَعۡثِ وَلَٰكِنَّكُمۡ كُنتُمۡ لَا تَعۡلَمُونَ

but those endowed with knowledge and faith will say, ‘In accordance with God’s decree, you actually lingered till the Day of Resurrection: this is the Day of Resurrection, yet you did not know.’

وَٱتَّبَعُواْ مَا تَتۡلُواْ ٱلشَّيَٰطِينُ عَلَىٰ مُلۡكِ سُلَيۡمَٰنَۖ وَمَا كَفَرَ سُلَيۡمَٰنُ وَلَٰكِنَّ ٱلشَّيَٰطِينَ كَفَرُواْ يُعَلِّمُونَ ٱلنَّاسَ ٱلسِّحۡرَ وَمَآ أُنزِلَ عَلَى ٱلۡمَلَكَيۡنِ بِبَابِلَ هَٰرُوتَ وَمَٰرُوتَۚ وَمَا يُعَلِّمَانِ مِنۡ أَحَدٍ حَتَّىٰ يَقُولَآ إِنَّمَا نَحۡنُ فِتۡنَةࣱ فَلَا تَكۡفُرۡۖ فَيَتَعَلَّمُونَ مِنۡهُمَا مَا يُفَرِّقُونَ بِهِۦ بَيۡنَ ٱلۡمَرۡءِ وَزَوۡجِهِۦۚ وَمَا هُم بِضَآرِّينَ بِهِۦ مِنۡ أَحَدٍ إِلَّا بِإِذۡنِ ٱللَّهِۚ وَيَتَعَلَّمُونَ مَا يَضُرُّهُمۡ وَلَا يَنفَعُهُمۡۚ وَلَقَدۡ عَلِمُواْ لَمَنِ ٱشۡتَرَىٰهُ مَا لَهُۥ فِي ٱلۡأٓخِرَةِ مِنۡ خَلَٰقࣲۚ وَلَبِئۡسَ مَا شَرَوۡاْ بِهِۦٓ أَنفُسَهُمۡۚ لَوۡ كَانُواْ يَعۡلَمُونَ

and followed what the evil ones had fabricated about the Kingdom of Solomon instead. Not that Solomon himself was a disbeliever; it was the evil ones who were disbelievers. They taught people witchcraft and what was revealed in Babylon to the two angels Harut and Marut. Yet these two never taught anyone without first warning him, ‘We are sent only to tempt- do not disbelieve.’ From these two, they learned what can cause discord between man and wife, although they harm no one with it except by God’s leave. They learned what harmed them, not what benefited them, knowing full well that whoever gained [this knowledge] would lose any share in the Hereafter. Evil indeed is the [price] for which they sold their souls, if only they knew

يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓاْ إِذَا تَدَايَنتُم بِدَيۡنٍ إِلَىٰٓ أَجَلࣲ مُّسَمࣰّ ى فَٱكۡتُبُوهُۚ وَلۡيَكۡتُب بَّيۡنَكُمۡ كَاتِبُۢ بِٱلۡعَدۡلِۚ وَلَا يَأۡبَ كَاتِبٌ أَن يَكۡتُبَ كَمَا عَلَّمَهُ ٱللَّهُۚ فَلۡيَكۡتُبۡ وَلۡيُمۡلِلِ ٱلَّذِي عَلَيۡهِ ٱلۡحَقُّ وَلۡيَتَّقِ ٱللَّهَ رَبَّهُۥ وَلَا يَبۡخَسۡ مِنۡهُ شَيۡـࣰٔ اۚ فَإِن كَانَ ٱلَّذِي عَلَيۡهِ ٱلۡحَقُّ سَفِيهًا أَوۡ ضَعِيفًا أَوۡ لَا يَسۡتَطِيعُ أَن يُمِلَّ هُوَ فَلۡيُمۡلِلۡ وَلِيُّهُۥ بِٱلۡعَدۡلِۚ وَٱسۡتَشۡهِدُواْ شَهِيدَيۡنِ مِن رِّجَالِكُمۡۖ فَإِن لَّمۡ يَكُونَا رَجُلَيۡنِ فَرَجُلࣱ وَٱمۡرَأَتَانِ مِمَّن تَرۡضَوۡنَ مِنَ ٱلشُّهَدَآءِ أَن تَضِلَّ إِحۡدَىٰهُمَا فَتُذَكِّرَ إِحۡدَىٰهُمَا ٱلۡأُخۡرَىٰۚ وَلَا يَأۡبَ ٱلشُّهَدَآءُ إِذَا مَا دُعُواْۚ وَلَا تَسۡـَٔمُوٓاْ أَن تَكۡتُبُوهُ صَغِيرًا أَوۡ كَبِيرًا إِلَىٰٓ أَجَلِهِۦۚ ذَٰلِكُمۡ أَقۡسَطُ عِندَ ٱللَّهِ وَأَقۡوَمُ لِلشَّهَٰدَةِ وَأَدۡنَىٰٓ أَلَّا تَرۡتَابُوٓاْ إِلَّآ أَن تَكُونَ تِجَٰرَةً حَاضِرَةࣰ تُدِيرُونَهَا بَيۡنَكُمۡ فَلَيۡسَ عَلَيۡكُمۡ جُنَاحٌ أَلَّا تَكۡتُبُوهَاۗ وَأَشۡهِدُوٓاْ إِذَا تَبَايَعۡتُمۡۚ وَلَا يُضَآرَّ كَاتِبࣱ وَلَا شَهِيدࣱۚ وَإِن تَفۡعَلُواْ فَإِنَّهُۥ فُسُوقُۢ بِكُمۡۗ وَٱتَّقُواْ ٱللَّهَۖ وَيُعَلِّمُكُمُ ٱللَّهُۗ وَٱللَّهُ بِكُلِّ شَيۡءٍ عَلِيمࣱ‏

You who believe, when you contract a debt for a stated term, put it down in writing: have a scribe write it down justly between you. No scribe should refuse to write: let him write as God has taught him, let the debtor dictate, and let him fear God, his Lord, and not diminish [the debt] at all. If the debtor is feeble-minded, weak, or unable to dictate, then let his guardian dictate justly. Call in two men as witnesses. If two men are not there, then call one man and two women out of those you approve as witnesses, so that if one of the two women should forget the other can remind her. Let the witnesses not refuse when they are summoned. Do not disdain to write the debt down, be it small or large, along with the time it falls due: this way is more equitable in God’s eyes, more reliable as testimony, and more likely to prevent doubts arising between you. But if the merchandise is there and you hand it over, there is no blame on you if you do not write it down. Have witnesses present whenever you trade with one another, and let no harm be done to either scribe or witness, for if you did cause them harm, it would be a crime on your part. Be mindful of God, and He will teach you: He has full knowledge of everything

وَلَن تَرۡضَىٰ عَنكَ ٱلۡيَهُودُ وَلَا ٱلنَّصَٰرَىٰ حَتَّىٰ تَتَّبِعَ مِلَّتَهُمۡۗ قُلۡ إِنَّ هُدَى ٱللَّهِ هُوَ ٱلۡهُدَىٰۗ وَلَئِنِ ٱتَّبَعۡتَ أَهۡوَآءَهُم بَعۡدَ ٱلَّذِي جَآءَكَ مِنَ ٱلۡعِلۡمِ مَا لَكَ مِنَ ٱللَّهِ مِن وَلِيࣲّ وَلَا نَصِيرٍ

The Jews and the Christians will never be pleased with you unless you follow their ways. Say, ‘God’s guidance is the only true guidance.’ If you were to follow their desires after the knowledge that has come to you, you would find no one to protect you from God or help you

وَلَئِنۡ أَتَيۡتَ ٱلَّذِينَ أُوتُواْ ٱلۡكِتَٰبَ بِكُلِّ ءَايَةࣲ مَّا تَبِعُواْ قِبۡلَتَكَۚ وَمَآ أَنتَ بِتَابِعࣲ قِبۡلَتَهُمۡۚ وَمَا بَعۡضُهُم بِتَابِعࣲ قِبۡلَةَ بَعۡضࣲۚ وَلَئِنِ ٱتَّبَعۡتَ أَهۡوَآءَهُم مِّنۢ بَعۡدِ مَا جَآءَكَ مِنَ ٱلۡعِلۡمِ إِنَّكَ إِذࣰ ا لَّمِنَ ٱلظَّٰلِمِينَ

Yet even if you brought every proof to those who were given the Scripture, they would not follow your prayer direction, nor will you follow theirs, nor indeed will any of them follow one another’s direction. If you [Prophet] were to follow their desires, after the knowledge brought to you, you would be doing wrong

وَقَالَ لَهُمۡ نَبِيُّهُمۡ إِنَّ ٱللَّهَ قَدۡ بَعَثَ لَكُمۡ طَالُوتَ مَلِكࣰ اۚ قَالُوٓاْ أَنَّىٰ يَكُونُ لَهُ ٱلۡمُلۡكُ عَلَيۡنَا وَنَحۡنُ أَحَقُّ بِٱلۡمُلۡكِ مِنۡهُ وَلَمۡ يُؤۡتَ سَعَةࣰ مِّنَ ٱلۡمَالِۚ قَالَ إِنَّ ٱللَّهَ ٱصۡطَفَىٰهُ عَلَيۡكُمۡ وَزَادَهُۥ بَسۡطَةࣰ فِي ٱلۡعِلۡمِ وَٱلۡجِسۡمِۖ وَٱللَّهُ يُؤۡتِي مُلۡكَهُۥ مَن يَشَآءُۚ وَٱللَّهُ وَٰسِعٌ عَلِيمࣱ‏

Their prophet said to them, ‘God has now appointed Talut to be your king,’ but they said, ‘How can he be king over us when we have a greater right to rule than he? He does not even have great wealth.’ He said, ‘God has chosen him over you, and has given him great knowledge and stature. God grants His authority to whoever He pleases: God is magnanimous, all knowing.’

(And follow that which the devils falsely related against the kingdom of Solomon�) [2:102]. Muhammad ibn 'Abd al-'Aziz al-Qantari informed us> Abu'l-Fadl al-Haddadi> Abu Yazid al-Khalidi> Ishaq ibn Ibrahim> Jarir> Husayn ibn 'Abd al-Rahman> 'Imran ibn al-Harith who said: �Once as we were sitting with Ibn 'Abbas when he said: 'The devils used to eavesdrop on heaven. One of them would bring a word of truth from therein, and when he is trusted for telling the truth, he would add to it seventy lies with which he earns the hearts of people. When Solomon came to know about it, he took it and buried it beneath his throne. When he died, a devil stood in the street and said: 'Shall I guide you to Solomon's guarded treasure, the like of which he does not have?' They said: 'Yes, do'. He said: 'It is under his throne; go and unearth it'. They said: 'This is magic'. Different nations then copied it f

But those who have been given knowledge and faith of angels and others shall say ‘You have remained according to God’s decree in accordance with what He had decreed for you in His prior knowledge until the Day of Resurrection. This is the Day of Resurrection which you rejected but you did not know’ that it would come to pass.

And on the Day that the Hour will be established, the criminals will swear that they stayed not but an hour – thus were they ever deluded (55)And those who have been bestowed with knowledge and Faith will say: "Indeed you have stayed according to the decree of Allah, until the Day of Resurrection; so this is the Day of Resurrection, but you knew not. (56)So, on that Day no excuse of theirs will avail those who did wrong, nor will they be allowed to return to seek (Allah's) pleasure (57) The Ignorance of the Disbelievers in this World and in the Hereafter Here Allah tells us of the ignorance of the disbelievers in this world and in the Hereafter. In this world they worship idols, and in the Hereafter they will also display great ignorance. They will swear by Allah that they did not even stay for one hour in this world. They will mean that there was not enough time given to establish pro

(And the Jews will not be pleased with thee, nor will the Christians�) [2:120]. The commentators of the Qur�an said: �They used to ask the Prophet, Allah bless him and give him peace, for truce, giving him the impression that if he were to accord them truce and respite they will follow him and believe in him. And so Allah, exalted is He, revealed this verse�. But Ibn �Abbas said: �This was revealed regarding the qiblah. This is because the Jews of Medina and the Christians of Najran were in the hope that the Prophet, Allah bless him and give him peace, will remain praying to their qiblah. When Allah directed him to pray toward the Ka�bah, they were disappointed and despaired of him ever following their religion. And so Allah revealed this verse�.

And they follow wa’ttaba‘ū is a supplement to nabadha ‘it cast away’ what the devils used to relate during the time of Solomon’s kingdom in the way of sorcery it is said that they the devils buried these books of sorcery underneath his throne when his kingdom was taken from him; it is also said that they used to listen stealthily and add fabrications to what they heard and then pass it on to the priests who would compile it in books; this would be disseminated and rumours spread that the jinn had knowledge of the Unseen. Solomon gathered these books and buried them. When he died the devils showed people where these books were and the latter brought them out and found that they contained sorcery and said ‘Your kingdom was only thanks to what is in here’; they then took to learning them and rejected the Scriptures of their prophets. In order to demonstrate Solomon’s innocence and in repudi

O you who believe when you contract when you are dealing with a debt such as in prepayment for future delivery of goods or a loan one upon another for a stated a known term write it down as confirmation and security against any dispute; and let a writer write it the contract of debt down between you justly accurately not increasing or decreasing the amount or the terms; and let not any writer refuse to write it down if he is requested for such a task as God has taught him the kāf of ka-mā ‘as’ is semantically connected to the verb ya’ba ‘refuse’ that is just as He has given him the advantage of knowing how to write he should not be niggardly in this respect; so let him write repeated for emphasis and let the debtor dictate to the one writing the contract for he is the one being witnessed and must be fully aware of his obligations; and let him fear God his Lord when dictating and not dimi

حَدَّثَنَا عَلِيُّ بْنُ حُجْرٍ، قَالَ أَخْبَرَنَا يَحْيَى بْنُ سَعِيدٍ الأُمَوِيُّ، عَنِ ابْنِ جُرَيْجٍ، عَنِ ابْنِ أَبِي مُلَيْكَةَ، عَنْ أُمِّ سَلَمَةَ، قَالَتْ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُقَطِّعُ قِرَاءَتَهُ يَقْرَأُ ‏(‏الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ ‏)‏ ثُمَّ يَقِفُ ‏(‏ الرَّحْمَنِ الرَّحِيمِ ‏)‏ ثُمَّ يَقِفُ وَكَانَ يَقْرَؤُهَا ‏(‏مَلِكِ يَوْمِ الدِّينِ ‏)‏ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ غَرِيبٌ وَبِهِ يَقْرَأُ أَبُو عُبَيْدٍ وَيَخْتَارُهُ هَكَذَا رَوَى يَحْيَى بْنُ سَعِيدٍ الأُمَوِيُّ وَغَيْرُهُ عَنِ ابْنِ جُرَيْجٍ عَنِ ابْنِ أَبِي مُلَيْكَةَ عَنْ أُمِّ سَلَمَةَ وَلَيْسَ إِسْنَادُهُ بِمُتَّصِلٍ لأَنَّ اللَّيْثَ بْنَ سَعْدٍ رَوَى هَذَا الْحَدِيثَ عَنِ ابْنِ أَبِي مُلَيْكَةَ عَنْ يَعْلَى بْنِ مَمْلَكٍ عَنْ أُمِّ سَلَمَةَ أَنَّهَا وَصَفَتْ قِرَاءَةَ النَّبِيِّ صلى الله عليه وسلم حَرْفًا حَرْفًا وَحَدِيثُ اللَّيْثِ أَصَحُّ وَلَيْسَ فِي حَدِيثِ اللَّيْثِ وَكَانَ يَقْرَأُ ‏(‏مَلِكِ يَوْمِ الدِّينِ ‏)‏ ‏.‏

Narrated Ibn Abi Mulaikah:that Umm Salamah said: "The Messenger of Allah (ﷺ) would separate recitation reciting: 'Al-Hamdulillahi Rabbil-'Alamin' then he would stop. 'Ar-Rahmanir-Rahim' then he would stop. And he would recite it: 'Maliki Yawmid-Din

حَدَّثَنَا الْحُسَيْنُ بْنُ مُحَمَّدٍ الْبَصْرِيُّ، قَالَ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ حَفْصٍ، قَالَ حَدَّثَنَا ثَابِتٌ الْبُنَانِيُّ، عَنْ شَهْرِ بْنِ حَوْشَبٍ، عَنْ أُمِّ سَلَمَةَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ يَقْرَؤُهَا ‏(‏إِنَّهُ عَمِلَ غَيْرَ صَالِحٍ ‏)‏ ‏.‏ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ قَدْ رَوَاهُ غَيْرُ وَاحِدٍ عَنْ ثَابِتٍ الْبُنَانِيِّ نَحْوَ هَذَا وَهُوَ حَدِيثُ ثَابِتٍ الْبُنَانِيِّ وَرُوِيَ هَذَا الْحَدِيثُ أَيْضًا عَنْ شَهْرِ بْنِ حَوْشَبٍ عَنْ أَسْمَاءَ بِنْتِ يَزِيدَ ‏.‏ وَسَمِعْتُ عَبْدَ بْنَ حُمَيْدٍ يَقُولُ أَسْمَاءُ بِنْتُ يَزِيدَ هِيَ أُمُّ سَلَمَةَ الأَنْصَارِيَّةُ ‏.‏ قَالَ أَبُو عِيسَى كِلاَ الْحَدِيثَيْنِ عِنْدِي وَاحِدٌ وَقَدْ رَوَى شَهْرُ بْنُ حَوْشَبٍ غَيْرَ حَدِيثٍ عَنْ أُمِّ سَلَمَةَ الأَنْصَارِيَّةِ وَهِيَ أَسْمَاءُ بِنْتُ يَزِيدَ وَقَدْ رُوِيَ عَنْ عَائِشَةَ عَنِ النَّبِيِّ صلى الله عليه وسلم نَحْوُ هَذَا ‏.‏

Narrated Umm Salamah:"The Prophet (ﷺ) would recite: 'Innahu 'Amila Ghaira Salih

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ عَبْدِ الرَّحْمَنِ الأَعْرَجِ، عَنْ عَبْدِ اللَّهِ ابْنِ بُحَيْنَةَ ـ رضى الله عنه ـ أَنَّهُ قَالَ إِنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَامَ مِنِ اثْنَتَيْنِ مِنَ الظُّهْرِ لَمْ يَجْلِسْ بَيْنَهُمَا، فَلَمَّا قَضَى صَلاَتَهُ سَجَدَ سَجْدَتَيْنِ ثُمَّ سَلَّمَ بَعْدَ ذَلِكَ‏.‏

Narrated `Abdullah bin Buhaina:Allah's Messenger (ﷺ) got up after the second rak`a of the Zuhr prayer without sitting in between (the second and the third rak`at). When he finished the prayer he performed two prostrations (of Sahu) and then finished the prayer with Taslim

حَدَّثَنَا أَبُو الْوَلِيدِ، حَدَّثَنَا شُعْبَةُ، عَنِ الْحَكَمِ، عَنْ إِبْرَاهِيمَ، عَنْ عَلْقَمَةَ، عَنْ عَبْدِ اللَّهِ ـ رضى الله عنه ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم صَلَّى الظُّهْرَ خَمْسًا فَقِيلَ لَهُ أَزِيدَ فِي الصَّلاَةِ فَقَالَ ‏ "‏ وَمَا ذَاكَ ‏"‏‏.‏ قَالَ صَلَّيْتَ خَمْسًا‏.‏ فَسَجَدَ سَجْدَتَيْنِ بَعْدَ مَا سَلَّمَ‏.‏

Narrated' `Abdullah:Once Allah's Messenger (ﷺ) offered five rak`at in the Zuhr prayer, and somebody asked him whether there was some increase in the prayer. Allah's Messenger (ﷺ) said, "What is that?" He said, "You have offered five rak`at." So Allah's Messenger (ﷺ) performed two prostrations of Sahu after Taslim

أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، قَالَ حَدَّثَنَا غَيْلاَنُ بْنُ جَرِيرٍ، عَنْ مُطَرِّفِ بْنِ عَبْدِ اللَّهِ، قَالَ صَلَّى عَلِيُّ بْنُ أَبِي طَالِبٍ فَكَانَ يُكَبِّرُ فِي كُلِّ خَفْضٍ وَرَفْعٍ يُتِمُّ التَّكْبِيرَ ‏.‏ فَقَالَ عِمْرَانُ بْنُ حُصَيْنٍ لَقَدْ ذَكَّرَنِي هَذَا صَلاَةَ رَسُولِ اللَّهِ صلى الله عليه وسلم ‏.‏

It was narrated that Mutarrif bin 'Abdullah said:"Ali bin Abi Talib prayed, and he said the takbir every time he went down and came up, in all movements of the prayer. 'Imran bin Husain said: 'This reminds me of the prayer of the Messenger of Allah (ﷺ)

أَخْبَرَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ الدَّوْرَقِيُّ، وَمُحَمَّدُ بْنُ بَشَّارٍ، - وَاللَّفْظُ لَهُ - قَالاَ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا عَبْدُ الْحَمِيدِ بْنُ جَعْفَرٍ، قَالَ حَدَّثَنِي مُحَمَّدُ بْنُ عَمْرِو بْنِ عَطَاءٍ، عَنْ أَبِي حُمَيْدٍ السَّاعِدِيِّ، قَالَ سَمِعْتُهُ يُحَدِّثُ، قَالَ كَانَ النَّبِيُّ صلى الله عليه وسلم إِذَا قَامَ مِنَ السَّجْدَتَيْنِ كَبَّرَ وَرَفَعَ يَدَيْهِ حَتَّى يُحَاذِيَ بِهِمَا مَنْكِبَيْهِ كَمَا صَنَعَ حِينَ افْتَتَحَ الصَّلاَةَ ‏.‏

It was narrated from Abu Humaid As-Sa'idi that:When the Prophet (ﷺ) stood up following two prostrations, he would say the takbir and raise his hands until they were level with his shoulders, as he had done at the beginning of the prayer

وفيه سبعة أبواب الباب الأول في فضل العلم والتعليم والتعلم

وقال الزهري رحمه الله العلم ذكر ولا تحبه إلا ذكران الرجال فضيلة التعلم

وقيل أول العلم الصمت ثم الاستماع ثم الحفظ ثم العمل ثم نشره

| الفائدة الأولى التعليم والتعلم

فالمحتاج إلى التعلم لما هو فرض عليه عاص بالعزلة

والسفر هو المعين على التعلم في الابتداء

Cued memory reactivation during sleep influences skill learning.: Information acquired during waking can be reactivated during sleep, promoting memory stabilization. After people learned to produce two melodies in time with moving visual symbols, we enhanced relative performance by presenting one melody during an afternoon nap. Electrophysiological signs of memory processing during sleep corroborated the notion that appropriate auditory stimulation that does not disrupt sleep can nevertheless bias memory consolidation in relevant brain circuitry.

The effects of acute stress on episodic memory: A meta-analysis and integrative review.: A growing body of research has indicated that acute stress can critically impact memory. However, there are a number of inconsistencies in the literature, and important questions remain regarding the conditions under which stress effects emerge as well as basic questions about how stress impacts different phases of memory. In this meta-analysis, we examined 113 independent studies in humans with 6,216 participants that explored effects of stress on encoding, postencoding, retrieval, or postreact

Off-line learning of motor skill memory: a double dissociation of goal and movement.: Acquiring a new skill requires learning multiple aspects of a task simultaneously. For example, learning a piano sonata requires learning the musical notes and being able to implement this goal by learning the appropriate sequence of finger movements. After practice, skill continues to develop off-line during a period of consolidation. Here we show that different aspects of a procedural memory are processed separately during consolidation: Only the movement sequence is enhanced over the day; whe

The role of sleep in false memory formation.: Memories are not stored as exact copies of our experiences. As a result, remembering is subject not only to memory failure, but to inaccuracies and distortions as well. Although such distortions are often retained or even enhanced over time, sleep's contribution to the development of false memories is unknown. Here, we report that a night of sleep increases both veridical and false recall in the Deese-Roediger-McDermott (DRM) paradigm, compared to an equivalent period of daytime wakefulness. But

Memory for therapy in bipolar disorder and comorbid insomnia.: Objective: To examine the extent to which patients recall the contents of therapy from 1 session to the next and to determine whether recall is associated with treatment outcome. Method: Thirty interepisode individuals with bipolar disorder and comorbid insomnia (ages 21-62 years, 56.7% women, 56.7% Caucasian) participated in a randomized controlled trial of psychotherapies. Patients received either cognitive behavior therapy for insomnia (CBTI-BP; n = 17) or psychoeducation (PE; n = 13). At the

Computerized cognitive training in cognitively healthy older adults: a systematic review and meta-analysis of effect modifiers.: Background: New effective interventions to attenuate age-related cognitive decline are a global priority. Computerized cognitive training (CCT) is believed to be safe and can be inexpensive, but neither its efficacy in enhancing cognitive performance in healthy older adults nor the impact of design factors on such efficacy has been systematically analyzed. Our aim therefore was to quantitatively assess whether CCT programs can enhance cognition in healthy older adults, discriminate responsive fr

Dissociable dopamine dynamics for learning and motivation.

The dopamine projection from ventral tegmental area (VTA) to nucleus accumbens (NAc) is critical for motivation to work for rewards and reward-driven learning. How dopamine supports both functions is unclear. Dopamine cell spiking can encode prediction errors, which are vital learning signals in computational theories of adaptive behaviour. By contrast, dopamine release ramps up as animals approach rewards, mirroring reward expectation. This mismatch might reflect differences in behavioural tasks, slower changes in dopamine cell spiking or spike-independent modulation of dopamine release. Here we compare spiking of identified VTA dopamine cells with NAc dopamine release in the same decision-making task. Cues that indicate an upcoming reward increased both spiking and release. However, NAc core dopamine release also covaried with dynamically evolving reward expectations, without correspon…

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Thoughts of death affect reward learning by modulating salience network activity.

Thoughts of death substantially influence human behavior and psychological well-being. A large number of behavioral studies have shown evidence that asking individuals to think about death or mortality salience leads to significant changes of their behaviors. These findings support the well-known terror management theory to account for the psychological mechanisms of existential anxiety. However, despite increasing findings of mortality salience effects on human behavior, how the brain responds to reminders of mortality and changes the activity underlying subsequent behavior remains poorly understood. By scanning healthy adults (N = 80) of both sexes using functional magnetic resonance imaging, we showed that, relative to reading emotionally neutral sentences, reading sentences that evoke death-related thoughts decreased the salience network activity, reduced the connectivity between the…

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The Role of Media-Induced Nostalgia after a Celebrity Death in Shaping Audiences' Social Sharing and Prosocial Behavior.

When a celebrity dies and news coverage repeatedly pays homages to the celebrity's life, it is possible that audiences experience nostalgia as they fondly recall past memories of that celebrity. Nostalgia has yet to be examined as a mechanism of audience behavior related to the health condition associated with that celebrity. As such, we proposed a conceptual model of the interplay of predictors of feeling nostalgic after a celebrity death (i.e., identification, audience age, audience gender, consumption of media about the celebrity death, and previous viewing of celebrity-related media) and two outcomes: prosocial behaviors (e.g., donating to or volunteering for a health-related organization associated with the celebrity) and social sharing of information with others. We conducted a nationwide survey (N = 466) within weeks following the death of television star Mary Tyler Moore to test …

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Space-like 56Fe irradiation manifests mild, early sex-specific behavioral and neuropathological changes in wildtype and Alzheimer's-like transgenic mice.

Space travel will expose people to high-energy, heavy particle radiation, and the cognitive deficits induced by this exposure are not well understood. To investigate the short-term effects of space radiation, we irradiated 4-month-old Alzheimer's disease (AD)-like transgenic (Tg) mice and wildtype (WT) littermates with a single, whole-body dose of 10 or 50 cGy 56Fe ions (1 GeV/u) at Brookhaven National Laboratory. At ~1.5 months post irradiation, behavioural testing showed sex-, genotype-, and dose-dependent changes in locomotor activity, contextual fear conditioning, grip strength, and motor learning, mainly in Tg but not WT mice. There was little change in general health, depression, or anxiety. Two months post irradiation, microPET imaging of the stable binding of a translocator protein ligand suggested no radiation-specific change in neuroinflammation, although initial uptake was red…

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Impaired reward-related learning signals in remitted unmedicated patients with recurrent depression.

One of the core symptoms of major depressive disorder is anhedonia, an inability to experience pleasure. In patients with major depressive disorder, a dysfunctional reward-system may exist, with blunted temporal difference reward-related learning signals in the ventral striatum and increased temporal difference-related (dopaminergic) activation in the ventral tegmental area. Anhedonia often remains as residual symptom during remission; however, it remains largely unknown whether the abovementioned reward systems are still dysfunctional when patients are in remission. We used a Pavlovian classical conditioning functional MRI task to explore the relationship between anhedonia and the temporal difference-related response of the ventral tegmental area and ventral striatum in medication-free remitted recurrent depression patients (n = 36) versus healthy control subjects (n = 27). Computationa…

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The value of international volunteers experience to the NHS.

Background: Global Engagement works with health partnerships to establish workforce and educational translation on a global scale to support the National Health Service (NHS). There is growing evidence on how international experiences (through volunteering, exchanges and placements) benefit the NHS through an innovative workforce that develops international best practice and promotes lifelong learning. Most of this evidence has been captured though surveys to returned international volunteers. However, there is limited evidence about how to quantify the value that returned international healthcare volunteers bring back to their country of residence. Methods: This paper identifies the various benefits to the NHS from returned international healthcare volunteers. The outcomes from returned international volunteers, which have been identified as relevant form a NHS perspective, are linked t…

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Are loneliness and social isolation associated with cognitive decline?

Objective: This study aimed to examine the association of loneliness and social isolation on cognition over a 3-year follow-up period in middle- and older-aged adults. Methods: Data from a Spanish nationally representative sample were analyzed (n = 1691; aged 50 years or older). Loneliness, social isolation, and cognition (immediate recall, delayed recall, verbal fluency, forward digit span, backward digit span, and a composite cognitive score) were assessed both at baseline and at follow-up. Adjusted generalized estimating equations models were performed. Results: Loneliness was significantly associated with lower scores in the composite cognitive score, immediate and delayed recall, verbal fluency, and backward digit span (B = -0.14 to B = -3.16; P < .05) and with a more rapid decline from baseline to follow-up in two out of six cognitive tests. Higher social isolation was associated w…

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Brain-to-Brain Synchrony and Learning Outcomes Vary by Student-Teacher Dynamics: Evidence from a Real-world Classroom Electroencephalography Study.

How does the human brain support real-world learning? We used wireless electroencephalography to collect neurophysiological data from a group of 12 senior high school students and their teacher during regular biology lessons. Six scheduled classes over the course of the semester were organized such that class materials were presented using different teaching styles (videos and lectures), and students completed a multiple-choice quiz after each class to measure their retention of that lesson's content. Both students' brain-to-brain synchrony and their content retention were higher for videos than lectures across the six classes. Brain-to-brain synchrony between the teacher and students varied as a function of student engagement as well as teacher likeability: Students who reported greater social closeness to the teacher showed higher brain-to-brain synchrony with the teacher, but this was…

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The impact of mental health recovery narratives on recipients experiencing mental health problems: Qualitative analysis and change model.

Background: Mental health recovery narratives are stories of recovery from mental health problems. Narratives may impact in helpful and harmful ways on those who receive them. The objective of this paper is to develop a change model identifying the range of possible impacts and how they occur. Method: Semi-structured interviews were conducted with adults with experience of mental health problems and recovery (n = 77). Participants were asked to share a mental health recovery narrative and to describe the impact of other people's recovery narratives on their own recovery. A change model was generated through iterative thematic analysis of transcripts. Results: Change is initiated when a recipient develops a connection to a narrator or to the events descripted in their narrative. Change is mediated by the recipient recognising experiences shared with the narrator, noticing the achievements…

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A common neural circuit mechanism for internally guided and externally reinforced forms of motor learning.

The complex skills underlying verbal and musical expression can be learned without external punishment or reward, indicating their learning is internally guided. The neural mechanisms that mediate internally guided learning are poorly understood, but a circuit comprising dopamine-releasing neurons in the midbrain ventral tegmental area (VTA) and their targets in the basal ganglia are important to externally reinforced learning. Juvenile zebra finches copy a tutor song in a process that is internally guided and, in adulthood, can learn to modify the fundamental frequency (pitch) of a target syllable in response to external reinforcement with white noise. Here we combined intersectional genetic ablation of VTA neurons, reversible blockade of dopamine receptors in the basal ganglia, and singing-triggered optogenetic stimulation of VTA terminals to establish that a common VTA-basal ganglia c…

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Multidimensional approach usefulness in early Alzheimer's disease: Advances in clinical practice.

Background and aim: Improving quality of life of patients with early Alzheimer's Disease (AD) is a primary concern of health professionals involved in dementia treatment. The aim of this study is to reveal associations among psychiatric symptoms and wellbeing aspects, dysfunctional lifestyles and stress-related behaviors, illness perception, personality traits, and life quality satisfaction, in order to offer a comprehensive evaluation of psychological and behavioral aspects characterizing patients with early AD. Methods: This is a cross-sectional study in which all the outpatients included were evaluated at the Dementia Clinic in Parma (Italy). 21 patients with probable AD were assessed by an overall cognitive screening (Milan Overall Dementia Assessment), the evaluation of personal and instrumental autonomy (Activities of Daily Living and Instrumental Activities of Daily Living), and o…

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"I'll stop procrastinating now!" Fostering specific processes of self-regulated learning to reduce academic procrastination.

Academic procrastination is considered to be a result of self-regulation failure having detrimental effects on students' well-being and academic performance. In the present study, we developed and evaluated a group training that aimed to reduce academic procrastination. We based the training on a cyclical process model of self-regulated learning, thus, focusing on improving deficient processes of self-regulated learning among academic procrastinators (e.g., time management, dealing with distractions). The training comprised five sessions and took place once a week for 90 min in groups of no more than 10 students. Overall, 106 students completed the training. We evaluated the training using a comprehensive control group design with repeated measures (three points of measurement); the control group was trained after the intervention group's training. The results showed that our training wa…

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Dance training is superior to repetitive physical exercise in inducing brain plasticity in the elderly.

Animal research indicates that a combination of physical activity and sensory enrichment has the largest and the only sustaining effect on adult neuroplasticity. Dancing has been suggested as a human homologue to this combined intervention as it poses demands on both physical and cognitive functions. For the present exploratory study, we designed an especially challenging dance program in which our elderly participants constantly had to learn novel and increasingly difficult choreographies. This six-month-long program was compared to conventional fitness training matched for intensity. An extensive pre/post-assessment was performed on the 38 participants (63-80 y), covering general cognition, attention, memory, postural and cardio-respiratory performance, neurotrophic factors and-most crucially-structural MRI using an exploratory analysis. For analysis of MRI data, a new method of voxel-…

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Social defeat stress before pregnancy induces depressive-like behaviours and cognitive deficits in adult male offspring: correlation with neurobiological changes.

Background: Epidemiological surveys and studies with animal models have established a relationship between maternal stress and affective disorders in their offspring. However, whether maternal depression before pregnancy influences behaviour and related neurobiological mechanisms in the offspring has not been studied. Results: A social defeat stress (SDS) maternal rat model was established using the resident-intruder paradigm with female specific pathogen-free Wistar rats and evaluated with behavioural tests. SDS maternal rats showed a significant reduction in sucrose preference and locomotor and exploratory activities after 4 weeks of stress. In the third week of the experiment, a reduction in body weight gain was observed in SDS animals. Sucrose preference, open field, the elevated-plus maze, light-dark box, object recognition, the Morris water maze, and forced swimming tests were perf…

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The timing of action determines reward prediction signals in identified midbrain dopamine neurons.

Animals adapt their behavior in response to informative sensory cues using multiple brain circuits. The activity of midbrain dopaminergic neurons is thought to convey a critical teaching signal: reward-prediction error. Although reward-prediction error signals are thought to be essential to learning, little is known about the dynamic changes in the activity of midbrain dopaminergic neurons as animals learn about novel sensory cues and appetitive rewards. Here we describe a large dataset of cell-attached recordings of identified dopaminergic neurons as naive mice learned a novel cue-reward association. During learning midbrain dopaminergic neuron activity results from the summation of sensory cue-related and movement initiation-related response components. These components are both a function of reward expectation yet they are dissociable. Learning produces an increasingly precise coordin…

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The benefits of international volunteering in a low-resource setting: development of a core outcome set.

Background: Qualitative narrative analysis and case studies form the majority of the current peer-reviewed literature about the benefits of professional volunteering or international placements for healthcare professionals. These often describe generalised outcomes that are difficult to define or have multiple meanings (such as 'communication skills' or 'leadership') and are therefore difficult to measure. However, there is an interest from employers, professional groups and individual volunteers in generating metrics for monitoring personal and professional development of volunteers and comparing different volunteering experiences in terms of their impact on the volunteers. In this paper, we describe two studies in which we (a) consolidated qualitative research and individual accounts into a core outcome set and (b) tested the core outcome set in a large group of global health stakehold…

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Rethinking dopamine as generalized prediction error.

Midbrain dopamine neurons are commonly thought to report a reward prediction error (RPE), as hypothesized by reinforcement learning (RL) theory. While this theory has been highly successful, several lines of evidence suggest that dopamine activity also encodes sensory prediction errors unrelated to reward. Here, we develop a new theory of dopamine function that embraces a broader conceptualization of prediction errors. By signalling errors in both sensory and reward predictions, dopamine supports a form of RL that lies between model-based and model-free algorithms. This account remains consistent with current canon regarding the correspondence between dopamine transients and RPEs, while also accounting for new data suggesting a role for these signals in phenomena such as sensory preconditioning and identity unblocking, which ostensibly draw upon knowledge beyond reward predictions.

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Healthcare students' evaluation of the clinical learning environment and supervision - a cross-sectional study.

Background: The purpose of clinical placements and supervision is to promote the development of healthcare students´ professional skills. High-quality clinical learning environments and supervision were shown to have significant influence on healthcare students´ professional development. Objectives: This study aimed to describe healthcare students` evaluation of the clinical learning environment and supervision, and to identify the factors that affect these. Design: The study was performed as a cross-sectional study. Methods: The data (n = 1973) were gathered through an online survey using the Clinical Learning Environment, Supervision and Nurse Teacher scale during the academic year 2015-2016 from all healthcare students (N = 2500) who completed their clinical placement at a certain university hospital in Finland. The data were analysed using descriptive statistics and binary logistic r…

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Hungry to learn: the prevalence and effects of food insecurity on health behaviors and outcomes over time among a diverse sample of university freshmen.

Background: To examine longitudinal associations between food insecurity (FI) and health behaviors/outcomes among a diverse sample of university freshmen. Methods: Freshman students (n = 1138; 65% female; 49% non-white) participating in the Social impact of Physical Activity and nutRition in College study completed surveys on health behaviors and had height/weight measured up to 4 times (T1-T4) in Arizona during 2015-2016. Structural equation models were estimated to determine if, after adjusting for covariates, FI predicted concurrent behaviors/outcomes and subsequent behaviors/outcomes. Analyses reported here were conducted in 2017. Results: The prevalence of FI was significantly higher at the end of each semester (35% and 36%, respectively) than at the start of the year (28%). Longitudinally, FI was not related to any health behaviors/outcomes at future time points. However, FI was si…

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Prefrontal cortex as a meta-reinforcement learning system.

Over the past 20 years, neuroscience research on reward-based learning has converged on a canonical model, under which the neurotransmitter dopamine 'stamps in' associations between situations, actions and rewards by modulating the strength of synaptic connections between neurons. However, a growing number of recent findings have placed this standard model under strain. We now draw on recent advances in artificial intelligence to introduce a new theory of reward-based learning. Here, the dopamine system trains another part of the brain, the prefrontal cortex, to operate as its own free-standing learning system. This new perspective accommodates the findings that motivated the standard model, but also deals gracefully with a wider range of observations, providing a fresh foundation for future research.

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Intrusive thoughts: linking spontaneous mind wandering and OCD symptomatology.

One recent line of research in the literature on mind wandering has been concerned with examining rates of mind wandering in special populations, such as those characterized by attention-deficit/hyperactivity disorder, dysphoria, and schizophrenia. To best conceptualize mind wandering in studies examining special populations, it has recently been suggested that researchers distinguish between deliberate and spontaneous subtypes of this experience. Extending this line of research on mind wandering in special populations, in a large non-clinical sample (N = 2636), we examined how rates of deliberate and spontaneous mind wandering vary with symptoms of obsessive-compulsive disorder (OCD). Results indicate that, whereas deliberate mind wandering is not associated with OCD symptomatology, spontaneous mind wandering is, with higher reports of spontaneous mind wandering being associated with hi…

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A Central Amygdala CRF Circuit Facilitates Learning about Weak Threats.

Fear is a graded central motive state ranging from mild to intense. As threat intensity increases, fear transitions from discriminative to generalized. The circuit mechanisms that process threats of different intensity are not well resolved. Here, we isolate a unique population of locally projecting neurons in the central nucleus of the amygdala (CeA) that produce the neuropeptide corticotropin-releasing factor (CRF). CRF-producing neurons and CRF in the CeA are required for discriminative fear, but both are dispensable for generalized fear at high US intensities. Consistent with a role in discriminative fear, CRF neurons undergo plasticity following threat conditioning and selectively respond to threat-predictive cues. We further show that excitability of genetically isolated CRF-receptive (CRFR1) neurons in the CeA is potently enhanced by CRF and that CRFR1 signaling in the CeA is crit…

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Medical Student Perceptions of Feedback and Feedback Behaviors Within the Context of the "Educational Alliance".

Purpose: Using the "educational alliance" as a conceptual framework, the authors explored medical students' beliefs about feedback and how their feedback behaviors reflect their perceptions. Method: Five focus groups (four to six medical students each) at one UK medical school in 2015 were used to capture and elucidate learners' feedback perceptions and behaviors within the context of the learner-educator relationship. A map of key feedback opportunities across the program was used as a tool for exploring student engagement with the feedback process. Qualitative data were analyzed using an approach based on grounded theory principles. Results: Three learner feedback behaviors emerged: recognizing, using, and seeking feedback. Five core themes influencing these behaviors were generated: learner beliefs, attitudes, and perceptions; relationships; teacher attributes; mode of feedback; and l…

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Tonic or Phasic Stimulation of Dopaminergic Projections to Prefrontal Cortex Causes Mice to Maintain or Deviate from Previously Learned Behavioral Strategies.

Dopamine neurons in the ventral tegmental area (VTA) encode reward prediction errors and can drive reinforcement learning through their projections to striatum, but much less is known about their projections to prefrontal cortex (PFC). Here, we studied these projections and observed phasic VTA-PFC fiber photometry signals after the delivery of rewards. Next, we studied how optogenetic stimulation of these projections affects behavior using conditioned place preference and a task in which mice learn associations between cues and food rewards and then use those associations to make choices. Neither phasic nor tonic stimulation of dopaminergic VTA-PFC projections elicited place preference. Furthermore, substituting phasic VTA-PFC stimulation for food rewards was not sufficient to reinforce new cue-reward associations nor maintain previously learned ones. However, the same patterns of stimul…

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Neural basis of impaired safety signaling in Obsessive Compulsive Disorder.

The ability to assign safety to stimuli in the environment is integral to everyday functioning. A key brain region for this evaluation is the ventromedial prefrontal cortex (vmPFC). To investigate the importance of vmPFC safety signaling, we used neuroimaging of Pavlovian fear reversal, a paradigm that involves flexible updating when the contingencies for a threatening (CS+) and safe (CS-) stimulus reverse, in a prototypical disorder of inflexible behavior influenced by anxiety, Obsessive Compulsive Disorder (OCD). Skin conductance responses in OCD patients (n = 43) failed to differentiate during reversal compared with healthy controls (n = 35), although significant differentiation did occur during early conditioning and amygdala BOLD signaling was unaffected in these patients. Increased vmPFC activation (for CS+ > CS-) during early conditioning predicted the degree of generalization in …

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