Attention and distraction

وَأَنذِرۡهُمۡ يَوۡمَ ٱلۡحَسۡرَةِ إِذۡ قُضِيَ ٱلۡأَمۡرُ وَهُمۡ فِي غَفۡلَةࣲ وَهُمۡ لَا يُؤۡمِنُونَ

for they are heedless and do not believe

ٱقۡتَرَبَ لِلنَّاسِ حِسَابُهُمۡ وَهُمۡ فِي غَفۡلَةࣲ مُّعۡرِضُونَ

Ever closer to people draws their reckoning, while they turn away, heedless

قُلۡ يَٰٓأَهۡلَ ٱلۡكِتَٰبِ لِمَ تَصُدُّونَ عَن سَبِيلِ ٱللَّهِ مَنۡ ءَامَنَ تَبۡغُونَهَا عِوَجࣰ ا وَأَنتُمۡ شُهَدَآءُۗ وَمَا ٱللَّهُ بِغَٰفِلٍ عَمَّا تَعۡمَلُونَ

Say, ‘People of the Book, why do you turn the believers away from God’s path and try to make it crooked, when you yourselves [should be] witnesses to the [truth]? God is not heedless of anything you do.’

وَإِذَا كُنتَ فِيهِمۡ فَأَقَمۡتَ لَهُمُ ٱلصَّلَوٰةَ فَلۡتَقُمۡ طَآئِفَةࣱ مِّنۡهُم مَّعَكَ وَلۡيَأۡخُذُوٓاْ أَسۡلِحَتَهُمۡۖ فَإِذَا سَجَدُواْ فَلۡيَكُونُواْ مِن وَرَآئِكُمۡ وَلۡتَأۡتِ طَآئِفَةٌ أُخۡرَىٰ لَمۡ يُصَلُّواْ فَلۡيُصَلُّواْ مَعَكَ وَلۡيَأۡخُذُواْ حِذۡرَهُمۡ وَأَسۡلِحَتَهُمۡۗ وَدَّ ٱلَّذِينَ كَفَرُواْ لَوۡ تَغۡفُلُونَ عَنۡ أَسۡلِحَتِكُمۡ وَأَمۡتِعَتِكُمۡ فَيَمِيلُونَ عَلَيۡكُم مَّيۡلَةࣰ وَٰحِدَةࣰۚ وَلَا جُنَاحَ عَلَيۡكُمۡ إِن كَانَ بِكُمۡ أَذࣰ ى مِّن مَّطَرٍ أَوۡ كُنتُم مَّرۡضَىٰٓ أَن تَضَعُوٓاْ أَسۡلِحَتَكُمۡۖ وَخُذُواْ حِذۡرَكُمۡۗ إِنَّ ٱللَّهَ أَعَدَّ لِلۡكَٰفِرِينَ عَذَابࣰ ا مُّهِينࣰ ا

When you [Prophet] are with the believers, leading them in prayer, let a group of them stand up in prayer with you, taking their weapons with them, and when they have finished their prostration, let them take up their positions at the back. Then let the other group, who have not yet prayed, pray with you, also on their guard and armed with their weapons: the disbelievers would dearly like you to be heedless of your weapons and baggage, in order for them to take you in a single assault. You will not be blamed if you lay aside your arms when you are overtaken by heavy rain or illness, but be on your guard. Indeed, God has prepared a humiliating punishment for the disbelievers

وَلَقَدۡ ذَرَأۡنَا لِجَهَنَّمَ كَثِيرࣰ ا مِّنَ ٱلۡجِنِّ وَٱلۡإِنسِۖ لَهُمۡ قُلُوبࣱ لَّا يَفۡقَهُونَ بِهَا وَلَهُمۡ أَعۡيُنࣱ لَّا يُبۡصِرُونَ بِهَا وَلَهُمۡ ءَاذَانࣱ لَّا يَسۡمَعُونَ بِهَآۚ أُوْلَٰٓئِكَ كَٱلۡأَنۡعَٰمِ بَلۡ هُمۡ أَضَلُّۚ أُوْلَٰٓئِكَ هُمُ ٱلۡغَٰفِلُونَ

We have created many jinn and people who are destined for Hell, with hearts they do not use for comprehension, eyes they do not use for sight, ears they do not use for hearing. They are like cattle, no, even further astray: these are the ones who are entirely heedless

وَٱذۡكُر رَّبَّكَ فِي نَفۡسِكَ تَضَرُّعࣰ ا وَخِيفَةࣰ وَدُونَ ٱلۡجَهۡرِ مِنَ ٱلۡقَوۡلِ بِٱلۡغُدُوِّ وَٱلۡأٓصَالِ وَلَا تَكُن مِّنَ ٱلۡغَٰفِلِينَ

[Prophet], remember your Lord inwardly, in all humility and awe, without raising your voice, in the mornings and in the evenings- do not be one of the heedless

Warn them of the day of remorse. The Day of Remorse is the Day of Resurrection. Wretchedness preceded for one group without their having committing disobedience, and felicity for another group without their having done beautiful deeds. The Day of Remorse is the first day in the era of the Beginningless, when it was ruled and decreed that everyone would be given what was suited for him: One would be driven away without any offense, and the other caressed but not because of obedience. For one a robe of elevation was woven without bias, and the other was burned in the fire of severance without iniquity. One was full of joy on the carpet of gentleness and heard the address, “So rejoice in your sale!” [9:111]. The other was in the pit of abandonment with the attribute of deprivation and tasted the venom of “Die in your rage!” [3:119]. Yes, He put into effect the precedent as He knew it, and H

And warn them threaten O Muhammad (s) the disbelievers of Mecca of the Day of Regret namely the Day of Resurrection on which the sinner will regret not having been virtuous in the life of this world when the matter will be decided for them thereupon that they be chastised while they in this world are yet heedless of it and do not believe in it the Day of Resurrection.

Nigh has drawn for mankind the people of Mecca the deniers of the Resurrection their reckoning on the Day of Resurrection yet they are heedless of it disregardful of the preparation required for it by way of embracing faith.

The Virtues of Surat Al-Anbiya' Al-Bukhari recorded that 'Abdur-Rahman bin Yazid said that 'Abdullah said, "Banu Isra'il, Al-Kahf, Maryam, Ta Ha and Al-Anbiya' - they are among the earliest and most beautiful Surahs and they are my treasure." بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ In the Name of Allah, the Most Gracious, the Most Merciful. اقْتَرَبَ لِلنَّاسِ حِسَابُهُمْ وَهُمْ فِي غَفْلَةٍ مُّعْرِضُونَ - مَا يَأْتِيهِم مِّن ذِكْرٍ مِّن رَّبِّهِم مُّحْدَثٍ إِلَّا اسْتَمَعُوهُ وَهُمْ يَلْعَبُونَ - لَاهِيَةً قُلُوبُهُمْ ۗ وَأَسَرُّوا النَّجْوَى الَّذِينَ ظَلَمُوا هَلْ هَٰذَا إِلَّا بَشَرٌ مِّثْلُكُمْ ۖ أَفَتَأْتُونَ السِّحْرَ وَأَنتُمْ تُبْصِرُونَ - قَالَ رَبِّي يَعْلَمُ الْقَوْلَ فِي السَّمَاءِ وَالْأَرْضِ ۖ وَهُوَ السَّمِيعُ الْعَلِيمُ - بَلْ قَالُوا أَضْغَاثُ أَحْلَامٍ بَلِ افْتَرَاهُ بَلْ هُوَ شَاعِرٌ فَلْيَأْتِنَا بِآيَةٍ كَمَا أُرْسِلَ الْأَوَّلُونَ - مَا آمَنَتْ قَبْلَهُم مِّن ق

(And when thou (O Muhammad) art among them and arrangest (their) worship for them�) [4:102]. The teacher Abu �Uthman al-Za�farani al-Muqri� informed us in the year [4]25> Abu Muhammad �Abd Allah ibn Muhammad ibn �Ali ibn Ziyad al-Suddi in the year 363> Abu Sa�id al-Fadl ibn Muhammad al-Jazari in the Sacred Mosque, Mecca, in 304> �Ali ibn Ziyad al-Lahji> Abu Qurrah Musa ibn Tariq> Sufyan> Mansur> Mujahid> Abu �Ayyash al-Zurraqi who said: �We performed the prayer of Zuhr with the Messenger of Allah, Allah bless him and give him peace, upon which the idolaters exclaimed: �They were in a vulnerable situation, why did we not attack them by surprise?� Then they said: �There shall come another prayer which is more beloved to them than their own fathers, which is the midafternoon (�Asr) prayer�. Gabriel, peace be upon him, then came down with these verses between the Zuhr and the �Asr prayers. (

And remember thy Lord in thyself. The rememberers are three men: One remembers with the tongue while the heart is unaware. Another remembers with both tongue and heart, but his work is in danger, as has been said, " The self-purifiers are in grave danger. " Still another is silent with the tongue but his heart is drowned in Him. The Pir of the Tariqah said, " O God, how can I remember, for I myself am all remembrance? I have given the harvest of my marks to the wind. How can I remember Him whom I have not for- gotten? O remembrance of the spirits, remembered by the hearts, and mentioned by the tongues! Remember me with Your bounty and make me happy with gentle remembrance! "

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 إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ بْنُ إِدْرِيسَ، قَالَ أَنْبَأَنَا ابْنُ جُرَيْجٍ، عَنِ ابْنِ أَبِي عَمَّارٍ، عَنْ عَبْدِ اللَّهِ بْنِ بَابَيْهِ، عَنْ يَعْلَى بْنِ أُمَيَّةَ، قَالَ قُلْتُ لِعُمَرَ بْنِ الْخَطَّابِ ‏{‏ لَيْسَ عَلَيْكُمْ جُنَاحٌ أَنْ تَقْصُرُوا، مِنَ الصَّلاَةِ إِنْ خِفْتُمْ أَنْ يَفْتِنَكُمُ الَّذِينَ كَفَرُوا ‏}‏ فَقَدْ أَمِنَ النَّاسُ ‏.‏ فَقَالَ عُمَرُ رضى الله عنه عَجِبْتُ مِمَّا عَجِبْتَ مِنْهُ فَسَأَلْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم عَنْ ذَلِكَ فَقَالَ ‏"‏ صَدَقَةٌ تَصَدَّقَ اللَّهُ بِهَا عَلَيْكُمْ فَاقْبَلُوا صَدَقَتَهُ ‏"‏ ‏.‏

It was narrated that Ya'la bin Umayyah said:"I said to 'Umar bin Al-Khattab: 'There is no sin on you if you shorten salah and if you fear that the disbelievers may put you in trial (attack you). But now the people are safe.' 'Umar said: 'I wondered the same thing, so I asked the Messenger of Allah (ﷺ) about that and he said: This is a favor from Allah (SWT) to you, so accept His favor

أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا اللَّيْثُ، عَنِ ابْنِ شِهَابٍ، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي بَكْرِ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أُمَيَّةَ بْنِ عَبْدِ اللَّهِ بْنِ خَالِدٍ، أَنَّهُ قَالَ لِعَبْدِ اللَّهِ بْنِ عُمَرَ إِنَّا نَجِدُ صَلاَةَ الْحَضَرِ وَصَلاَةَ الْخَوْفِ فِي الْقُرْآنِ وَلاَ نَجِدُ صَلاَةَ السَّفَرِ فِي الْقُرْآنِ ‏.‏ فَقَالَ لَهُ ابْنُ عُمَرَ يَا ابْنَ أَخِي إِنَّ اللَّهَ عَزَّ وَجَلَّ بَعَثَ إِلَيْنَا مُحَمَّدًا صلى الله عليه وسلم وَلاَ نَعْلَمُ شَيْئًا وَإِنَّمَا نَفْعَلُ كَمَا رَأَيْنَا مُحَمَّدًا صلى الله عليه وسلم يَفْعَلُ ‏.‏

It was narrated from Umayyah bin 'Abdullah bin Khalid that:He said to 'Abdullah bin 'Umar: "We find (mention of) prayer when one is at home (i.e., not traveling) and prayer at times of fear in the Qur'an, but we do not find any mention in the Qur'an of prayer when traveling. Ibn Umar said to him: 'O son of my brother, Allah (SWT) send Muhammad (ﷺ) to us when we did not know anything, and all we should do is to do that which we saw Muhammad (ﷺ) doing

حَدَّثَنَا ابْنُ نُمَيْرٍ، حَدَّثَنَا ابْنُ فُضَيْلٍ، حَدَّثَنَا الأَعْمَشُ، عَنْ إِبْرَاهِيمَ، عَنْ عَلْقَمَةَ، عَنْ عَبْدِ اللَّهِ ـ رضى الله عنه ـ قَالَ كُنَّا نُسَلِّمُ عَلَى النَّبِيِّ صلى الله عليه وسلم وَهُوَ فِي الصَّلاَةِ فَيَرُدُّ عَلَيْنَا، فَلَمَّا رَجَعْنَا مِنْ عِنْدِ النَّجَاشِيِّ سَلَّمْنَا عَلَيْهِ فَلَمْ يَرُدَّ عَلَيْنَا وَقَالَ ‏ "‏ إِنَّ فِي الصَّلاَةِ شُغْلاً ‏"‏‏.‏

Narrated `Abdullah:We used to greet the Prophet (ﷺ) while he was praying and he used to answer our greetings. When we returned from An-Najashi (the ruler of Ethiopia), we greeted him, but he did not answer us (during the prayer) and (after finishing the prayer) he said, "In the prayer one is occupied (with a more serious matter)

حَدَّثَنَا ابْنُ نُمَيْرٍ، حَدَّثَنَا إِسْحَاقُ بْنُ مَنْصُورٍ، حَدَّثَنَا هُرَيْمُ بْنُ سُفْيَانَ، عَنِ الأَعْمَشِ، عَنْ إِبْرَاهِيمَ، عَنْ عَلْقَمَةَ، عَنْ عَبْدِ اللَّهِ ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم نَحْوَهُ‏.‏

Narrated `Abdullah:The same as No. 290. from the Prophet

فدلت هذه الحكايات والأخبار مع ما سبق على أن الأصل في الصلاة الخشوع وحضور القلب وأن مجرد الحركات مع الغفلة قليل الجدوى في المعاد والله أعلم

والحضور مضاد للعزوب والغفلة وإن لم يكن مفصلا

وأما ذكر الرعاية : فمثل قول الذاكر : الله معي والله ناظر إلي الله شاهدي ونحو ذلك مما يستعمل لتقوية الحضور مع الله وفيه رعاية لمصلحة القلب ولحفظ الأدب مع الله والتحرز من الغفلة والاعتصام من الشيطان والنفس

يريد بالخفي ههنا : الذكر بمجرد القلب بما يعرض له من الواردات وهذا ثمرة الذكر الأول ويريد بالخلاض من القيود : التخلص من الغفلة والنسيان والحجب الحائلة بين القلب وبين الرب سبحانه والبقاء مع الشهود : ملازمة الحضور مع المذكور ومشاهدة القلب له حتى كأنه يراه

ثم يتشعب من كل واحدة من هذه الخصال العشر عشر أخرى من الرذائل لم نطول بذكرها وتفصيل آحادها مثل الأنفة والغضب والبغضاء والطمع وحب طلب المال والجاه للتمكن من الغلبة والمباهاة والأشر والبطر وتعظيم الأغنياء والسلاطين والتردد إليهم والأخذ من حرامهم والتجمل بالخيول والمراكب والثياب المحظورة والاستحقار للناس بالفخر والخيلاء والخوض فيما لا يعني وكثرة الكلام وخروج الخشية والخوف والرحمة من القلب واستيلاء الغفلة عليه حتى لا يدري المصلي منهم في صلاته ما صلى وما الذي يقرأ ومن الذي يناجيه ولايحس بالخشوع من قلبه مع استغراق العمر في العلوم التي تعين في المناظرة مع أنها لا تنفع في الآخرة من تحسين العبارة وتسجيع اللفظ وحفظ النوادر إلى غير ذلك من أمور لا تحصى

وإذا أردت منهم هذا القدر كما ينبغي فانظر وقت أخذك في القراءة إذا أعرضت عن واجبها وتدبرها وتعقلها وفهم ما أريد بكل آية وحظك من الخطاب بها وتنزيلها على أدواء قلبك والتقيد بها كيف تدرك الختمة أو أكثرها أو ما قرأت منها بسهولة وخفة مستكثرا من القراءة فإذا ألزمت نفسك التدبر ومعرفة المراد والنظر إلى ما يخصك منه والتعبد به وتنزيل دوائه على أدواء قلبك والإستشفاء به لم تكد تجوز السورة أو الآية إلى غيرها وكذلك إذا جمعت قلبك كله على ركعتين أعطيتهما ما تقدر عليه من الحضور والخشوع والمراقبة لم تكد أن تصلي غيرهما إلا بجهد فإذا خلا القلب من ذلك عددت الركعات بلا حساب فالإستكثار من الطاعات دون مراعاة آفاتها وعيوبها ليتوب منها هي توبة العامة

Effects of L-theanine-caffeine combination on sustained attention and inhibitory control among children with ADHD: a proof-of-concept neuroimaging RCT.: We examined the acute effects of L-theanine, caffeine and their combination on sustained attention, inhibitory control and overall cognition in boys with attention deficit hyperactivity disorder (ADHD). L-Theanine (2.5 mg/kg), caffeine (2.0 mg/kg), their combination and a placebo were administered in a randomized four-way repeated-measures crossover with washout, to five boys (8-15 years) with ADHD. Functional magnetic resonance imaging (fMRI) was performed during a Go/NoGo task and a Stop-signa

Stimulating meditation: a pre-registered randomised controlled experiment combining a single dose of the cognitive enhancer, modafinil, with brief mindfulness training.: Background: Mindfulness-meditation has a variety of benefits on well-being. However, individuals with primary attentional impairments (e.g. attention deficit disorder) or attentional symptoms secondary to anxiety, depression or addiction, may be less likely to benefit, and require additional mindfulness-augmenting strategies. Aims: To determine whether a single dose of the cognitive enhancer, modafinil, acutely increases subjective and behavioural indices of mindfulness, and augments brief mindf

Mind Wandering (Internal Distractibility) in ADHD: A Literature Review.: Objective: Mind wandering, the unintended shifting of attention from a task, has been previously associated with symptoms of ADHD. To this end, we conducted a literature search to investigate the association between mind wandering and ADHD. Method: We conducted a systematic search of the literature of relevant articles assessing mind wandering and ADHD in PubMed, PsycINFO/OVID, and Medline. Included were original articles in English that had operationalized definitions of ADHD and mind wandering

A novel digital intervention for actively reducing severity of paediatric ADHD (STARS-ADHD): a randomised controlled trial.: Background: Attention-deficit hyperactivity disorder (ADHD) is a common paediatric neurodevelopmental disorder with substantial effect on families and society. Alternatives to traditional care, including novel digital therapeutics, have shown promise to remediate cognitive deficits associated with this disorder and may address barriers to standard therapies, such as pharmacological interventions and behavioural therapy. AKL-T01 is an investigational digital therapeutic designed to target attenti

Randomised sham-controlled study of high-frequency bilateral deep transcranial magnetic stimulation (dTMS) to treat adult attention hyperactive disorder (ADHD): Negative results.: Objectives: Recent studies support the possible effectiveness of repetitive transcranial magnetic stimulation (rTMS) as a treatment for attention deficit hyperactivity disorder (ADHD). The objective of this study was to evaluate the safety and possible efficacy of bilateral prefrontal deep rTMS for the treatment of adult ADHD. Methods: Twenty-six adult ADHD patients were randomised blindly to sham or actual deep TMS (dTMS). Twenty daily sessions were conducted using the bilateral H5 dTMS coil (B

Atomoxetine treatment of attention-deficit/hyperactivity disorder in young adults with assessment of functional outcomes: a randomized, double-blind, placebo-controlled clinical trial.: Background: Attention-deficit/hyperactivity disorder (ADHD) is associated with significant impairment in multiple functional domains. This trial evaluated efficacy in ADHD symptoms and functional outcomes in young adults treated with atomoxetine. Methods: Young adults (18-30 years old) with ADHD were randomized to 12 weeks of double-blind treatment with atomoxetine (n = 220) or placebo (n = 225). The primary efficacy measure of ADHD symptom change was Conners' Adult ADHD Rating Scale (CAARS): In

The association between Internet addiction and psychiatric disorder: a review of the literature.

Internet addiction is a newly emergent disorder. It has been found to be associated with a variety of psychiatric disorders. Information about such coexisting psychiatric disorders is essential to understand the mechanism of Internet addiction. In this review, we have recruited articles mentioning coexisting psychiatric disorders of Internet addiction from the PubMed database as at November 3, 2009. We describe the updated results for such disorders of Internet addiction, which include substance use disorder, attention-deficit hyperactivity disorder, depression, hostility, and social anxiety disorder. We also provide discussion for possible mechanisms accounting for the coexistence of psychiatric disorders and Internet addiction. The review might suggest that combined psychiatric disorders mentioned above should be evaluated and treated to prevent their deteriorating effect on the progno…

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Neurobiological correlates of cognitions in fear and anxiety: a cognitive-neurobiological information-processing model.

We review likely neurobiological substrates of cognitions related to fear and anxiety. Cognitive processes are linked to abnormal early activity reflecting hypervigilance in subcortical networks involving the amygdala, hippocampus, and insular cortex, and later recruitment of cortical regulatory resources, including activation of the anterior cingulate cortex and prefrontal cortex to implement avoidant response strategies. Based on this evidence, we present a cognitive-neurobiological information-processing model of fear and anxiety, linking distinct brain structures to specific stages of information processing of perceived threat.

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Executive function and PTSD: disengaging from trauma.

Neuropsychological approaches represent an important avenue for identifying susceptibility and resiliency factors relating to the development and maintenance of posttraumatic stress disorder (PTSD) symptoms post-trauma. This review will summarize results from prospective longitudinal and retrospective cross-sectional studies investigating executive function associated with PTSD. This research points specifically towards subtle impairments in response inhibition and attention regulation that may predate trauma exposure, serve as risk factors for the development of PTSD, and relate to the severity of symptoms. These impairments may be exacerbated within emotional or trauma-related contexts, and may relate to dysfunction within dorsal prefrontal networks. A model is presented concerning how such impairments may contribute to the clinical profile of PTSD and lead to the use of alternative co…

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Neurobiological circuits regulating attention, cognitive control, motivation, and emotion: disruptions in neurodevelopmental psychiatric disorders.

Objective: This article aims to review basic and clinical studies outlining the roles of prefrontal cortical (PFC) networks in the behavior and cognitive functions that are compromised in childhood neurodevelopmental disorders and how these map into the neuroimaging evidence of circuit abnormalities in these disorders. Method: Studies of animals, normally developing children, and patients with neurodevelopmental disorders were reviewed, with focus on neuroimaging studies. Results: The PFC provides "top-down" regulation of attention, inhibition/cognitive control, motivation, and emotion through connections with posterior cortical and subcortical structures. Dorsolateral and inferior PFC regulate attention and cognitive/inhibitory control, whereas orbital and ventromedial structures regulate motivation and affect. PFC circuitries are very sensitive to their neurochemical environment, and s…

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Emotion-related cognitive processes in borderline personality disorder: a review of the empirical literature.

Maladaptive cognitive processes, including selective attention and memory, distorted beliefs and interpretations, and thinking processes such as rumination and thought suppression, are strongly associated with many emotional disorders. This paper reviews research that extends these findings to the emotional dysfunction characteristic of borderline personality disorder (BPD). Results suggest that people with BPD habitually attend to negative stimuli, have disproportionate access to negative memories, endorse a range of BPD-consistent negative beliefs about themselves, the world, and other people, and make negatively biased interpretations and evaluations of neutral or ambiguous stimuli. They also engage in thought suppression and rumination and these tendencies are significantly associated with the severity of their BPD symptoms. It remains unclear whether maladaptive cognitive processes …

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Control of sleep and wakefulness.

This review summarizes the brain mechanisms controlling sleep and wakefulness. Wakefulness promoting systems cause low-voltage, fast activity in the electroencephalogram (EEG). Multiple interacting neurotransmitter systems in the brain stem, hypothalamus, and basal forebrain converge onto common effector systems in the thalamus and cortex. Sleep results from the inhibition of wake-promoting systems by homeostatic sleep factors such as adenosine and nitric oxide and GABAergic neurons in the preoptic area of the hypothalamus, resulting in large-amplitude, slow EEG oscillations. Local, activity-dependent factors modulate the amplitude and frequency of cortical slow oscillations. Non-rapid-eye-movement (NREM) sleep results in conservation of brain energy and facilitates memory consolidation through the modulation of synaptic weights. Rapid-eye-movement (REM) sleep results from the interactio…

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Dehydration influences mood and cognition: a plausible hypothesis?

The hypothesis was considered that a low fluid intake disrupts cognition and mood. Most research has been carried out on young fit adults, who typically have exercised, often in heat. The results of these studies are inconsistent, preventing any conclusion. Even if the findings had been consistent, confounding variables such as fatigue and increased temperature make it unwise to extrapolate these findings. Thus in young adults there is little evidence that under normal living conditions dehydration disrupts cognition, although this may simply reflect a lack of relevant evidence. There remains the possibility that particular populations are at high risk of dehydration. It is known that renal function declines in many older individuals and thirst mechanisms become less effective. Although there are a few reports that more dehydrated older adults perform cognitive tasks less well, the body …

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ADHD and offenders.

Objectives: To present the needs and psychological treatment options for offenders with ADHD. Methods: Key papers are discussed in relation to this topic. Results: Research suggests there is a disproportionately high number of individuals with ADHD involved with the Criminal Justice System. UK studies among offenders have indicated around 45% of youths and 24% of male adults screen positive for a childhood history of ADHD, 14% of whom have persisting symptoms in adulthood. Those with persisting symptoms have a significantly younger onset of offending and higher rate of recidivism. ADHD was the most powerful predictor of violent offending, even above substance misuse. They accounted for 8-fold more institutional aggressive behavioural disturbances (critical incidents) than other non-ADHD prisoners. Critical incidents have also been associated with personality disordered patients screening…

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Efficacy and tolerability of pharmacotherapies for attention-deficit hyperactivity disorder in adults.

This review examines the evidence regarding the efficacy and tolerability of long- and short-acting stimulant medications, as well as the non-stimulant medications atomoxetine and bupropion in the treatment of adult attention-deficit hyperactivity disorder (ADHD). Effect sizes in adults appear to be of almost the same magnitude as in school-age children when robust doses are used. There are adequate data demonstrating short-term efficacy and safety of medication in ADHD during adulthood but long-term studies are lacking, particularly in view of concerns regarding cardiovascular adverse events. There is some evidence that stimulant medication can improve driving performance in adults with ADHD. The extent to which medication may improve academic, occupational and social functioning in adults with ADHD is unclear, and future research should investigate these outcomes. Medication treatment …

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Personality influences the neural responses to viewing facial expressions of emotion.

Cognitive research has long been aware of the relationship between individual differences in personality and performance on behavioural tasks. However, within the field of cognitive neuroscience, the way in which such differences manifest at a neural level has received relatively little attention. We review recent research addressing the relationship between personality traits and the neural response to viewing facial signals of emotion. In one section, we discuss work demonstrating the relationship between anxiety and the amygdala response to facial signals of threat. A second section considers research showing that individual differences in reward drive (behavioural activation system), a trait linked to aggression, influence the neural responsivity and connectivity between brain regions implicated in aggression when viewing facial signals of anger. Finally, we address recent criticisms…

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Whether, how, and when social anxiety shapes positive experiences and events: a self-regulatory framework and treatment implications.

Although neglected in diagnostic criteria lists, theoretical models, and treatment approaches, attenuated positive emotions and cognitions distinguish social anxiety and social anxiety disorder from other anxiety conditions (and cannot be accounted for by comorbidity with depression). We present a self-control resource depletion model to explain how the intense self-regulatory efforts of high socially anxious individuals dampen positive experiences and events. We review existing research on individuals with social anxiety difficulties, focusing on impoverished positive experiences and quality of life, atypical reactions to overtly positive social outcomes, the absence of a normative bias toward the positive in social situations, and a meaningful subset of individuals who show signs of impulsive, short-lived positive events. We also discuss findings from the social psychology literature f…

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Catecholamine influences on dorsolateral prefrontal cortical networks.

The symptoms of attention-deficit/hyperactivity disorder (ADHD) involve impairments in prefrontal cortical top-down regulation of attention and behavior. All current pharmacological treatments for ADHD facilitate catecholamine transmission, and basic research suggests that these compounds have prominent actions in the prefrontal cortex (PFC). The dorsolateral PFC is especially sensitive to levels of norepinephrine and dopamine, whereby either too little or too much markedly impairs PFC function. Recent physiological studies have shown that norepinephrine strengthens PFC network connectivity and maintains persistent firing during a working memory task through stimulation of postsynaptic α(2A)-adrenoceptors on PFC neurons. Conversely, dopamine acts at D1 receptors to narrow spatial tuning, sculpting network inputs to decrease noise (i.e., stabilization of the representation). The stimulant…

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Catecholamine influences on prefrontal cortical function: relevance to treatment of attention deficit/hyperactivity disorder and related disorders.

The primary symptoms of attention deficit/hyperactivity disorder (ADHD) include poor impulse control and impaired regulation of attention. Research has shown that the prefrontal cortex (PFC) is essential for the "top-down" regulation of attention, behavior, and emotion, and that this brain region is underactive in many patients with ADHD. The PFC is known to be especially sensitive to its neurochemical environment; relatively small changes in the levels of norepinephrine and dopamine can produce significant changes in its function. Therefore, alterations in the pathways mediating catecholamine transmission can impair PFC function, while medications that optimize catecholamine actions can improve PFC regulation of attention, behavior, and emotion. This article reviews studies in animals showing that norepinephrine and dopamine enhance PFC function through actions at postsynaptic α(2A)-adr…

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Understanding depressive rumination from a cognitive science perspective: the impaired disengagement hypothesis.

Persisting negative thoughts are considered a hallmark of depression. Recent information-processing approaches have begun to uncover underlying mechanisms of depressive rumination. Despite marked advances in this area, there is a lack of integration between psychopathology and cognitive (neuro) science research. We propose the 'impaired disengagement' hypothesis as a unifying framework between both approaches. The core tenet of our model is that prolonged processing of self-referent material is due to impaired attentional disengagement from negative self-referent information. We discuss empirical evidence for this framework and outline future ways in which the causal predictions of this model can be tested. The proposed framework can account for effectiveness of various treatments for depression and may aid in devising new interventions to target depressive cognition.

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Development of anxiety: the role of threat appraisal and fear learning.

Anxious individuals exhibit threat biases at multiple levels of information processing. From a developmental perspective, abnormal safety learning in childhood may establish threat-related appraisal biases early, which may contribute to chronic disorders in adulthood. This review illustrates how the interface among attention, threat appraisal, and fear learning can generate novel insights for outcome prediction. This review summarizes data on amygdala function, as it relates to learning and attention, highlights the importance of examining threat appraisal, and introduces a novel imaging paradigm to investigate the neural correlates of threat appraisal and threat-sensitivity during extinction recall. This novel paradigm can be used to investigate key questions relevant to prognosis and treatment. Depression and Anxiety, 2011.© 2010 Wiley-Liss, Inc.

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Functional neuroanatomy and the rationale for using EEG biofeedback for clients with Asperger's syndrome.

This paper reviews the symptoms of Asperger's Syndrome (AS), a disorder along the autism continuum, and highlights research findings with an emphasis on brain differences. Existing theories concerning AS are described, including theory of mind (Hill and Frith in Phil Trans Royal Soc Lond, Bull 358:281-289, 2003), mirror neuron system (Ramachandran and Oberman in Sci Am 295(5):62-69, 2006), and Porges' (Ann N Y Acad Sci 1008:31-47, 2003, The neurobiology of autism, Johns Hopkins University Press, Baltimore, 2004) polyvagal theory. (A second paper, Outcomes using EEG Biofeedback Training in Clients with Asperger's Syndrome, summarizes clinical outcomes obtained with more than 150 clients.) Patterns seen with QEEG assessment are then presented. Single channel assessment at the vertex (CZ) reveals patterns similar to those found in Attention-Deficit/Hyperactivity Disorder. Using 19-channel d…

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Oiling the brain: a review of randomized controlled trials of omega-3 fatty acids in psychopathology across the lifespan.

Around one in four people suffer from mental illness at some stage in their lifetime. There is increasing awareness of the importance of nutrition, particularly omega-3 polyunsaturated fatty acids (n-3 PUFA), for optimal brain development and function. Hence in recent decades, researchers have explored effects of n-3 PUFA on mental health problems over the lifespan, from developmental disorders in childhood, to depression, aggression, and schizophrenia in adulthood, and cognitive decline, dementia and Alzheimer's disease in late adulthood. This review provides an updated overview of the published and the registered clinical trials that investigate effects of n-3 PUFA supplementation on mental health and behavior, highlighting methodological differences and issues.

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Therapy-relevant factors in adult ADHD from a cognitive behavioural perspective.

Adult individuals with attention-deficit hyperactivity disorder (ADHD) have been suffering from this neurobiological and highly heritable disorder chronically since childhood. Resulting from their longstanding neuropsychological impairments, such as attentional problems, emotional instability, and disinhibition, they are familiar to a multiplicity of negative life outcomes and underachievement. Furthermore, a large part of this population suffers from psychiatric comorbidity. This accumulation of negative experiences has an impact on therapy-relevant factors such as the individual's self-esteem, self-efficacy, development of core beliefs/schemas, and coping strategies. Based on negative beliefs about the self, individuals confronted with difficult situations develop maladaptive coping strategies, for instance avoidance and procrastination. These strategies lead to maintenance and reinfor…

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Effects of sleep deprivation on cognition.

Sleep deprivation is commonplace in modern society, but its far-reaching effects on cognitive performance are only beginning to be understood from a scientific perspective. While there is broad consensus that insufficient sleep leads to a general slowing of response speed and increased variability in performance, particularly for simple measures of alertness, attention and vigilance, there is much less agreement about the effects of sleep deprivation on many higher level cognitive capacities, including perception, memory and executive functions. Central to this debate has been the question of whether sleep deprivation affects nearly all cognitive capacities in a global manner through degraded alertness and attention, or whether sleep loss specifically impairs some aspects of cognition more than others. Neuroimaging evidence has implicated the prefrontal cortex as a brain region that may …

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Total sleep deprivation, chronic sleep restriction and sleep disruption.

Sleep loss may result from total sleep deprivation (such as a shift worker might experience), chronic sleep restriction (due to work, medical conditions or lifestyle) or sleep disruption (which is common in sleep disorders such as sleep apnea or restless legs syndrome). Total sleep deprivation has been widely researched, and its effects have been well described. Chronic sleep restriction and sleep disruption (also known as sleep fragmentation) have received less experimental attention. Recently, there has been increasing interest in sleep restriction and disruption as it has been recognized that they have a similar impact on cognitive functioning as a period of total sleep deprivation. Sleep loss causes impairments in cognitive performance and simulated driving and induces sleepiness, fatigue and mood changes. This review examines recent research on the effects of sleep deprivation, rest…

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Measurement of cognition in studies of sleep deprivation.

Controlled laboratory studies of the effects of sleep deprivation on cognition have the potential to further our understanding of why some complex tasks are more affected by lack of sleep than other tasks. However, apparently simple cognitive tasks reflect multiple cognitive processes at once. Some of the component processes involved in a task may be more affected by sleep deprivation than others. Thus, interpreting measures of overall performance without consideration of the specific task requirements can lead to misleading conclusions. Using examples from studies of attention, working memory and executive functioning, we demonstrate the importance of analysing how different task components contribute to performance and how the nature of the stimulus content can influence outcomes of sleep deprivation studies. Recent developments in cognitive neuropsychology may help sleep researchers c…

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Clinical assessment and diagnosis of adults with attention-deficit/hyperactivity disorder.

Attention-deficit/hyperactivity disorder (ADHD) is a prevalent disorder in adult psychiatry, particularly in out-patient settings. There are no objective, laboratory-based tests that can establish this diagnosis. Present diagnostic criteria for ADHD are formulated primarily according to behavior in childhood, based on age inappropriate and impairing levels of hyperactivity, impulsivity and inattention. Other symptoms, such as mood instability and frustration intolerance, are not included in current criteria for ADHD, but are very prevalent in this patient group. ADHD is often comorbid with alcohol and substance abuse and other psychiatric disorders, in particular anxiety and personality disorders. Thus, the diagnostic assessment should both include a comprehensive clinical interview, rating scales for past and present symptoms and collateral information from multiple informants, as well …

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Animal models of cognitive dysfunction and negative symptoms of schizophrenia: focus on NMDA receptor antagonism.

Cognitive deficits in schizophrenia remain an unmet clinical need. Improved understanding of the neuro- and psychopathology of these deficits depends on the availability of carefully validated animal models which will assist the development of novel therapies. There is much evidence that at least some of the pathology and symptomatology (particularly cognitive and negative symptoms) of schizophrenia results from a dysfunction of the glutamatergic system which may be modelled in animals through the use of NMDA receptor antagonists. The current review examines the validity of this model in rodents. We review the ability of acute and sub-chronic treatment with three non-competitive NMDA antagonists; phencyclidine (PCP), ketamine and MK801 (dizocilpine) to produce cognitive deficits of relevance to schizophrenia in rodents and their subsequent reversal by first- and second-generation antipsy…

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Training and plasticity of working memory.

Working memory (WM) capacity predicts performance in a wide range of cognitive tasks. Although WM capacity has been viewed as a constant trait, recent studies suggest that it can be improved by adaptive and extended training. This training is associated with changes in brain activity in frontal and parietal cortex and basal ganglia, as well as changes in dopamine receptor density. Transfer of the training effects to non-trained WM tasks is consistent with the notion of training-induced plasticity in a common neural network for WM. The observed training effects suggest that WM training could be used as a remediating intervention for individuals for whom low WM capacity is a limiting factor for academic performance or in everyday life.

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Internet addiction or excessive internet use.

Background: Problematic Internet addiction or excessive Internet use is characterized by excessive or poorly controlled preoccupations, urges, or behaviors regarding computer use and Internet access that lead to impairment or distress. Currently, there is no recognition of internet addiction within the spectrum of addictive disorders and, therefore, no corresponding diagnosis. It has, however, been proposed for inclusion in the next version of the Diagnostic and Statistical Manual of Mental Disorder (DSM). Objective: To review the literature on Internet addiction over the topics of diagnosis, phenomenology, epidemiology, and treatment. Methods: Review of published literature between 2000-2009 in Medline and PubMed using the term "internet addiction. Results: Surveys in the United States and Europe have indicated prevalence rate between 1.5% and 8.2%, although the diagnostic criteria and …

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