How fear is learned, held and unlearned.
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Verses named for this subject by hand come first. The rest are found by the subject’s own Arabic and English senses and are shown as lexical matches, not as anchors anyone has confirmed.
لَا يَحۡزُنُهُمُ ٱلۡفَزَعُ ٱلۡأَكۡبَرُ وَتَتَلَقَّىٰهُمُ ٱلۡمَلَٰٓئِكَةُ هَٰذَا يَوۡمُكُمُ ٱلَّذِي كُنتُمۡ تُوعَدُونَ
They will have no fear of the great Terror: the angels will receive them with the words, ‘This is the Day you were promised!’
مِن شَرِّ ٱلۡوَسۡوَاسِ ٱلۡخَنَّاسِ
against the harm of the slinking whisperer––
وَيَوۡمَ يُنفَخُ فِي ٱلصُّورِ فَفَزِعَ مَن فِي ٱلسَّمَٰوَٰتِ وَمَن فِي ٱلۡأَرۡضِ إِلَّا مَن شَآءَ ٱللَّهُۚ وَكُلٌّ أَتَوۡهُ دَٰخِرِينَ
On the Day the Trumpet sounds, everyone in heaven and on earth will be terrified- except such as God wills- and all will come to Him in utter humility
مَن جَآءَ بِٱلۡحَسَنَةِ فَلَهُۥ خَيۡرࣱ مِّنۡهَا وَهُم مِّن فَزَعࣲ يَوۡمَئِذٍ ءَامِنُونَ
whoever comes with a good deed will be rewarded with something better, and be secure from the terrors of that Day
وَلَا تَنفَعُ ٱلشَّفَٰعَةُ عِندَهُۥٓ إِلَّا لِمَنۡ أَذِنَ لَهُۥۚ حَتَّىٰٓ إِذَا فُزِّعَ عَن قُلُوبِهِمۡ قَالُواْ مَاذَا قَالَ رَبُّكُمۡۖ قَالُواْ ٱلۡحَقَّۖ وَهُوَ ٱلۡعَلِيُّ ٱلۡكَبِيرُ
Intercession will not work with Him, except by those to whom He gives permission.’ They will be asked, after the terror is lifted from their hearts [on the Day of Judgement], ‘What did your Lord speak?’ and they will answer, ‘The Truth. He is the Most High, the Most Great.’
وَلَوۡ تَرَىٰٓ إِذۡ فَزِعُواْ فَلَا فَوۡتَ وَأُخِذُواْ مِن مَّكَانࣲ قَرِيبࣲ
[Prophet], if you could only see their terror! There will be no escape when they are seized from a nearby place
Commentary on the verses above, at most two editions per verse.
The greatest terror shall not make them sorrow, and the angels will receive them: “This is the day that you were promised.” On the Day of Resurrection in the greatest gathering place and most tremendous courtyard, they will not hear from the angels the call “no good news” [25:22], nor the address, “Stand apart today, O offenders!” [36:59], nor the harsh call, “Slink into it, and do not talk to Me!” [23:108]. They will not hear the call of separation's pain, nor will they despair of mercy. Rather the angels will keep on coming, company after company, and they will give the good news: “This is the day that you were promised,” that is, “This is the day in which you have the promised reward.” Among them are those who will be received by the angels, and among them are those who will be addressed and made known by the King. God will say, “My servants, have you been yearning for Me?” He will sa
The Supreme Terror — which is that a servant be ordered off to the Fire shall not grieve them and the angels shall receive them upon their exiting from their graves saying to them ‘This is your day the one which you were promised’ during the life of the world.
from the evil of the slinking whisperer Satan — he is referred to by the name of the action waswasa on account of his repeated engaging in it — who slinks away and recoils from the heart whenever God is mentioned
Say: "I seek refuge with the Lord of An-Nas, (1)"The King of An-Nas, (2)"The God of An-Nas, (3)"From the evil of the whisperer who withdraws. (4)"Who whispers in the breasts of An-Nas. (5)"Of Jinn and An-Nas. (6) These are three attributes from the attributes of the Lord, the Mighty and Majestic. They are lordship, sovereignty and divinity. Thus, He is the Lord of everything, the King of everything and the God of everything. All things are created by Him, owned by Him, and subservient to Him. Therefore, He commands whoever is seeking protection to seek refuge with the One Who has these attributes from the evil of the whisperer who withdraws. This (the whisperer) is the devil that is assigned to man. For verily, there is not any of the Children of Adam except that he has a companion that beautifies wicked deeds for him. This devil will go to any lengths to confuse and confound him. The o
And the day when the Trumpet will be blown the Horn will be blown the First Blast by the archangel Isrāfīl and whoever is in the heavens and the earth will be terrified that is a fright that brings about death — as is stated in another verse and whoever is in the heavens and whoever is in the earth will swoon Q. 3968 the past tense fazi‘a is used to express the fact that such events will have occurred; except whom God will namely Gabriel Michael Isrāfīl and the Angel of Death. According to Ibn ‘Abbās however these excepted individuals are the martyrs who are described as living with their Lord provided for by Him’ Q. 3169. And all kullun the nunation compensates for the missing genitive annexation in other words and every one of them after being brought back to life on the Day of Resurrection will come to Him read in the form of the verb atawhu or the active participle ātūhu in utter hum
And (remember) the Day on which the Trumpet (Şūr) will be blown – and all who are in the heavens and all who are on the earth, will be terrified except him whom Allah wills. And all shall come to Him, humbled (87)And you will see the mountains and think them solid, but they shall pass away as the passing away of the clouds. The work of Allah, Who perfected all things, verily, He is well-acquainted with what you do (88)Whoever brings a good deed, will have better than its worth; and they will be safe from the terror on that Day (89)And whoever brings an evil deed, they will be cast down on their faces in the Fire. (And it will be said to them) "Are you being recompensed anything except what you used to do? (90) The Terrors of the Day of Resurrection, the Rewards for Good Deeds and the Punishments for Evil Deeds Allah tells us about the terrors of the Day when the Şūr will be blown. The
Arabic originals, reached through the subject’s Arabic senses. Interpretive sources, never proof of a ruling.
وجملة أدب المريض حسن الصبر وقلة الشكوى والضجر والفزع إلى الدعاء والتوكل بعد الدواء على خالق الدواء
وجملة آداب المريض: حسن الصبر، وقلة الشكوى والتضجر، والفزع إلى #
أي لذلك الماء الذي غمر الأرض ومن عليها فصل وأما الوهل فهو بتحريك الهاء وأصله الفزع والروع يقال وهل يوهل وهو وهل ومستوهل قال القطامي يصف إبلا
وأما اللوعة فقال في الصحاح لوعة الحب حرقته وقد لاعه الحب يلوعه والتاع فؤاده أي احترق من الشوق ومنه قولهم أتان لاعة الفؤاد إلى جحشها قال الأصمعي أي لائعة الفؤاد وهي التي كأنها ولهى من الفزع فصل
| الفصل الرابع في اذكار الفزع في النوم والفكر
وقال أبو هريرة وابن عباس رضي الله عنهم خطب رسول الله صلى الله عليه وسلم قبل وفاته فقال في خطبته ومن قدر على امرأة أو جارية حراما فتركها مخافة من الله أمنه الله يوم الفزع الأكبر وحرمه على النار وأدخله الجنة
Peer-reviewed work held with its DOI and abstract, labelled with the study design its publication types report. None of it has been read or assessed, so nothing here may be cited as showing anything. Retracted work is held for the record but never listed; a review that a later version replaced is listed under its replacement and marked.
Extending animal models of fear conditioning to humans.: A goal of fear and anxiety research is to understand how to treat the potentially devastating effects of anxiety disorders in humans. Much of this research utilizes classical fear conditioning, a simple paradigm that has been extensively investigated in animals, helping outline a brain circuitry thought to be responsible for the acquisition, expression and extinction of fear. The findings from non-human animal research have more recently been substantiated and extended in humans, using neuropsyc
Fear extinction in rats: implications for human brain imaging and anxiety disorders.: Fear extinction is the decrease in conditioned fear responses that normally occurs when a conditioned stimulus (CS) is repeatedly presented in the absence of the aversive unconditioned stimulus (US). Extinction does not erase the initial CS-US association, but is thought to form a new memory. After extinction training, extinction memory competes with conditioning memory for control of fear expression. Deficits in fear extinction are thought to contribute to post-traumatic stress disorder (PTSD).
Presence and acquired origin of reduced recall for fear extinction in PTSD: results of a twin study.: Recall of fear extinction, which is thought to aid in recovery from a psychologically traumatic event, is hypothesized to be deficient in post-traumatic stress disorder (PTSD), but this has not yet been demonstrated in the laboratory, nor has its origin been investigated. To address these two issues, 14 pairs of monozygotic twins discordant for combat exposure, in 7 of which the combat-exposed twin had PTSD, underwent a two-day fear conditioning and extinction procedure. On Day 1, subjects viewe
The effects of transcutaneous vagus nerve stimulation on conditioned fear extinction in humans.: A critical component of the treatment for anxiety disorders is the extinction of fear via repeated exposure to the feared stimulus. This process is strongly dependent on successful memory formation and consolidation. Stimulation of the vagus nerve enhances memory formation in both animals and humans. The objective of this study was to assess whether transcutaneous stimulation of the vagus nerve (tVNS) can accelerate extinction memory formation and retention in fear conditioned humans. To assess
Neural signatures of conditioning, extinction learning, and extinction recall in posttraumatic stress disorder: a meta-analysis of functional magnetic resonance imaging studies.: Background: Establishing neurobiological markers of posttraumatic stress disorder (PTSD) is essential to aid in diagnosis and treatment development. Fear processing deficits are central to PTSD, and their neural signatures may be used as such markers. Methods: Here, we conducted a meta-analysis of seven Pavlovian fear conditioning fMRI studies comparing 156 patients with PTSD and 148 trauma-exposed healthy controls (TEHC) using seed-based d-mapping, to contrast neural correlates of experimental
Role of Human Ventromedial Prefrontal Cortex in Learning and Recall of Enhanced Extinction.: Standard fear extinction relies on the ventromedial prefrontal cortex (vmPFC) to form a new memory given the omission of threat. Using fMRI in humans, we investigated whether replacing threat with novel neutral outcomes (instead of just omitting threat) facilitates extinction by engaging the vmPFC more effectively than standard extinction. Computational modeling of associability (indexing surprise strength and dynamically modulating learning rates) characterized skin conductance responses and vm
Behavioural activation: a pilot trial of transdiagnostic treatment for excessive worry.
Transdiagnostic interventions present pragmatic benefits in treatment dissemination and training of mental health professionals when faced with emotional disorders such as anxiety and depression. Excessive worry is a common feature across emotional disorders and represents an ideal candidate target for transdiagnostic intervention. The current pilot trial examined the efficacy of a behavioural activation treatment for worry (BAW) in a community population. 49 individuals experiencing excessive worry were randomised to waitlist or BAW receiving an 8 week group based intervention. Results demonstrated that BAW was successful in reducing excessive worry, depressive symptoms, cognitive avoidance, Intolerance of Uncertainty and improving problem solving orientation. Twice as many individuals showed clinically significant reductions in excessive worry after treatment compared to the waitlist c…
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Oxytocin increases amygdala reactivity to threatening scenes in females.
The neuropeptide oxytocin (OT) is well known for its profound effects on social behavior, which appear to be mediated by an OT-dependent modulation of amygdala activity in the context of social stimuli. In humans, OT decreases amygdala reactivity to threatening faces in males, but enhances amygdala reactivity to similar faces in females, suggesting sex-specific differences in OT-dependent threat-processing. To further explore whether OT generally enhances amygdala-dependent threat-processing in females, we used functional magnetic resonance imaging (fMRI) in a randomized within-subject crossover design to measure amygdala activity in response to threatening and non-threatening scenes in 14 females following intranasal administration of OT or placebo. Participants' eye movements were recorded to investigate whether an OT-dependent modulation of amygdala activity is accompanied by enhanced…
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Effects of alcohol on brain responses to social signals of threat in humans.
Alcohol is a known exogenous modulator of negative affect (anxiety, tension) in both animals and humans. It has been proposed that the anxiolytic effects of alcohol are mediated via the amygdala, an area critical to fear perception and responding. However, little is known about the acute effects of alcohol on amygdala reactivity to threatening information in humans. We used functional magnetic resonance imaging and a validated task to probe amygdala responses to social signals of threat in 12 healthy, social drinkers after a double-blind crossover administration of alcohol or placebo. We found that alcohol significantly reduced amygdala reactivity to threat signals. The current findings fit well with the notion that alcohol may attenuate threat-based responding and provide a potential brain-based mechanism for the link between alcohol and anxiety and/or social threat perception.
matched on Fear (mesh), Amygdala (mesh)
Does engagement with exposure yield better outcomes? Components of presence as a predictor of treatment response for virtual reality exposure therapy for social phobia.
Virtual reality exposure (VRE) has been shown to be effective for treating a variety of anxiety disorders, including social phobia. Presence, or the level of connection an individual feels with the virtual environment, is widely discussed as a critical construct both for the experience of anxiety within a virtual environment and for a successful response to VRE. Two published studies show that whereas generalized presence relates to fear ratings during VRE, it does not relate to treatment response. However, presence has been conceptualized as multidimensional, with three primary factors (spatial presence, involvement, and realness). These factors can be linked to other research on the facilitation of fear during exposure, inhibitors of treatment response (e.g., distraction), and more recent theoretical discussions of the mechanisms of exposure therapy, such as Bouton's description of exp…
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Oxytocin attenuates amygdala reactivity to fear in generalized social anxiety disorder.
Patients with generalized social anxiety disorder (GSAD) exhibit heightened activation of the amygdala in response to social cues conveying threat (eg, fearful/angry faces). The neuropeptide oxytocin (OXT) decreases anxiety and stress, facilitates social encounters, and attenuates amygdala reactivity to threatening faces in healthy subjects. The goal of this study was to examine the effects of OXT on fear-related amygdala reactivity in GSAD and matched healthy control (CON) subjects. In a functional magnetic resonance imaging study utilizing a double-blind placebo-controlled within-subjects design, we measured amygdala activation to an emotional face matching task of fearful, angry, and happy faces following acute intranasal administration of OXT (24 IU or 40.32 μg) and placebo in 18 GSAD and 18 CON subjects. Both the CON and GSAD groups activated bilateral amygdala to all emotional face…
matched on Fear (mesh), Amygdala (mesh)
Amygdala activity to fear and anger in healthy young males is associated with testosterone.
Neuroimaging studies have documented modulation of the activity of the amygdala - a key node in the neural network underlying emotion perception and processing, and one that has also been associated with regulating aggression - by exogenous testosterone. However, results on the impact of normal range testosterone levels on explicit emotion recognition as a prerequisite for social interaction and amygdala activation in healthy young males are missing. Hence, we performed functional MRI at 3T in a group of 21 healthy males during explicit emotion recognition with a protocol specifically optimized to reliably detect amygdala activation. We observed similar amygdala activation to all emotions presented without any effect of gender of poser or laterality. Reaction times to fearful male faces were found negatively correlated to testosterone concentration, while no significant effects emerged f…
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Cannabinoid modulation of amygdala reactivity to social signals of threat in humans.
The cannabinoid (CB) system is a key neurochemical mediator of anxiety and fear learning in both animals and humans. The anxiolytic effects of delta(9)-tetrahydrocannabinol (THC), the primary psychoactive ingredient in cannabis, are believed to be mediated through direct and selective agonism of CB(1) receptors localized within the basolateral amygdala, a critical brain region for threat perception. However, little is known about the effects of THC on amygdala reactivity in humans. We used functional magnetic resonance imaging and a well validated task to probe amygdala responses to threat signals in 16 healthy, recreational cannabis users after a double-blind crossover administration of THC or placebo. We found that THC significantly reduced amygdala reactivity to social signals of threat but did not affect activity in primary visual and motor cortex. The current findings fit well with …
matched on Fear (mesh), Amygdala (mesh)
Symptom provocation and reduction in patients suffering from spider phobia: an fMRI study on exposure therapy.
Neurofunctional mechanisms underlying cognitive behavior therapy (CBT) are still not clearly understood. This functional magnetic resonance imaging (fMRI) study focused on changes in brain activation as a result of one-session CBT in patients suffering from spider phobia. Twenty-six female spider phobics and 25 non-phobic subjects were presented with spider pictures, generally disgust-inducing, generally fear-inducing and affectively neutral scenes in an initial fMRI session. Afterwards, the patients were randomly assigned to either a therapy group (TG) or a waiting list group (WG). The scans were repeated one week after the treatment or after a one-week waiting period. Relative to the non-phobic participants, the patients displayed increased activation in the amygdala and the fusiform gyrus as well as decreased activation in the medial orbitofrontal cortex (OFC) during the first exposur…
matched on Fear (mesh), Amygdala (mesh)
Effects of sleep on memory for conditioned fear and fear extinction.
Learning and memory for extinction of conditioned fear is a basic mammalian mechanism for regulating negative emotion. Sleep promotes both the consolidation of memory and the regulation of emotion. Sleep can influence consolidation and modification of memories associated with both fear and its extinction. After brief overviews of the behavior and neural circuitry associated with fear conditioning, extinction learning, and extinction memory in the rodent and human, interactions of sleep with these processes will be examined. Animal and human studies suggest that sleep can serve to consolidate both fear and extinction memory. In humans, sleep also promotes generalization of extinction memory. Time-of-day effects on extinction learning and generalization are also seen. Rapid eye movement (REM) may be a sleep stage of particular importance for the consolidation of both fear and extinction me…
matched on Extinction, Psychological (mesh), Fear (mesh), fear conditioning (text), fear extinction (text)
Pharmacological treatments that facilitate extinction of fear: relevance to psychotherapy.
Summary: A great deal is now known about the mechanisms of conditioned fear acquisition and expression. More recently, the mechanisms of inhibition of conditioned fear have become the subject of intensive study. The major model system for the study of fear inhibition in the laboratory is extinction, in which a previously fear conditioned organism is exposed repeatedly to the fear-eliciting cue in the absence of any aversive event and the fear conditioned response declines. It is well established that extinction is a form of new learning as opposed to forgetting or "unlearning" of conditioned fear, and it is hypothesized that extinction develops when sensory pathways conveying sensory information to the amygdala come to engage GABAergic interneurons through forms of experience-dependent plasticity such as long-term potentiation. Several laboratories currently are investigating methods of …
matched on Extinction, Psychological (mesh), Fear (mesh), fear conditioning (text), fear extinction (text)
Rodent models of impaired fear extinction.
The measurement of Pavlovian forms of fear extinction offers a relatively simple behavioral preparation that is nonetheless tractable, from a translational perspective, as an approach to study mechanisms of exposure therapy and biological underpinnings of anxiety and trauma-related disorders such as post-traumatic stress disorder (PTSD). Deficient fear extinction is considered a robust clinical endophenotype for these disorders and, as such, has particular significance in the current "age of RDoC (research domain criteria)." Various rodent models of impaired extinction have thus been generated with the objective of approximating this clinical, relapse prone aberrant extinction learning. These models have helped to reveal neurobiological correlates of extinction circuitry failure, gene variants, and other mechanisms underlying deficient fear extinction. In addition, they are increasingly …
matched on Extinction, Psychological (mesh), Fear (mesh), fear extinction (text), Amygdala (keyword)
Cholinergic regulation of fear learning and extinction.
Cholinergic activation regulates cognitive function, particularly long-term memory consolidation. This Review presents an overview of the anatomical, neurochemical, and pharmacological evidence supporting the cholinergic regulation of Pavlovian contextual and cue-conditioned fear learning and extinction. Basal forebrain cholinergic neurons provide inputs to neocortical regions and subcortical limbic structures such as the hippocampus and amygdala. Pharmacological manipulations of muscarinic and nicotinic receptors support the role of cholinergic processes in the amygdala, hippocampus, and prefrontal cortex in modulating the learning and extinction of contexts or cues associated with threat. Additional evidence from lesion studies and analysis of in vivo acetylcholine release with microdialysis similarly support a critical role of cholinergic neurotransmission in corticoamygdalar or corti…
matched on Extinction, Psychological (mesh), Fear (mesh), fear extinction (text), Amygdala (keyword)
Dopamine and extinction: a convergence of theory with fear and reward circuitry.
Research on dopamine lies at the intersection of sophisticated theoretical and neurobiological approaches to learning and memory. Dopamine has been shown to be critical for many processes that drive learning and memory, including motivation, prediction error, incentive salience, memory consolidation, and response output. Theories of dopamine's function in these processes have, for the most part, been developed from behavioral approaches that examine learning mechanisms in reward-related tasks. A parallel and growing literature indicates that dopamine is involved in fear conditioning and extinction. These studies are consistent with long-standing ideas about appetitive-aversive interactions in learning theory and they speak to the general nature of cellular and molecular processes that underlie behavior. We review the behavioral and neurobiological literature showing a role for dopamine i…
matched on Extinction, Psychological (mesh), Fear (mesh), fear conditioning (text), Amygdala (keyword)
Dopamine: from prediction error to psychotherapy.
Dopamine, one of the main neurotransmitters in the mammalian brain, has been implicated in the coding of prediction errors that govern reward learning as well as fear extinction learning. Psychotherapy too can be viewed as a form of error-based learning, because it challenges erroneous beliefs and behavioral patterns in order to induce long-term changes in emotions, cognitions, and behaviors. Exposure therapy, for example, relies in part on fear extinction principles to violate erroneous expectancies of danger and induce novel safety learning that inhibits and therefore reduces fear in the long term. As most forms of psychotherapy, however, exposure therapy suffers from non-response, dropout, and relapse. This narrative review focuses on the role of midbrain and prefrontal dopamine in novel safety learning and investigates possible pathways through which dopamine-based interventions coul…
matched on Extinction, Psychological (mesh), Fear (mesh), fear extinction (text), safety learning (text)
Prefrontal cortex, amygdala, and threat processing: implications for PTSD.
Posttraumatic stress disorder can be viewed as a disorder of fear dysregulation. An abundance of research suggests that the prefrontal cortex is central to fear processing-that is, how fears are acquired and strategies to regulate or diminish fear responses. The current review covers foundational research on threat or fear acquisition and extinction in nonhuman animals, healthy humans, and patients with posttraumatic stress disorder, through the lens of the involvement of the prefrontal cortex in these processes. Research harnessing advances in technology to further probe the role of the prefrontal cortex in these processes, such as the use of optogenetics in rodents and brain stimulation in humans, will be highlighted, as well other fear regulation approaches that are relevant to the treatment of posttraumatic stress disorder and involve the prefrontal cortex, namely cognitive regulatio…
matched on Extinction, Psychological (mesh), Fear (mesh), Amygdala (mesh)
The structural and functional connectivity of the amygdala: from normal emotion to pathological anxiety.
The dynamic interactions between the amygdala and the medial prefrontal cortex (mPFC) are usefully conceptualized as a circuit that both allows us to react automatically to biologically relevant predictive stimuli as well as regulate these reactions when the situation calls for it. In this review, we will begin by discussing the role of this amygdala-mPFC circuitry in the conditioning and extinction of aversive learning in animals. We will then relate these data to emotional regulation paradigms in humans. Finally, we will consider how these processes are compromised in normal and pathological anxiety. We conclude that the capacity for efficient crosstalk between the amygdala and the mPFC, which is represented as the strength of the amygdala-mPFC circuitry, is crucial to beneficial outcomes in terms of reported anxiety.
matched on Extinction, Psychological (mesh), Fear (mesh), Amygdala (mesh)
Mechanisms of exposure therapy: how neuroscience can improve psychological treatments for anxiety disorders.
Exposure therapy for anxiety disorders has been one of success stories of clinical psychology and psychiatry. Nevertheless, a significant minority of patients fail to benefit from extant treatments. This clinical impasse is prompting renewed attempts to understand fear and its reduction at neural, cellular, and molecular as well as behavioral levels of analysis. The purpose of this article is to provide a review of theories of exposure therapy, including recent developments in emotional processing theory, and to discuss insights from neuroscience that promise to improve psychological treatments for reducing pathological fears.
matched on Extinction, Psychological (mesh), Fear (mesh), Amygdala (mesh)
Associations of sleep measures with neural activations accompanying fear conditioning and extinction learning and memory in trauma-exposed individuals.
Study objectives: Sleep disturbances increase risk of posttraumatic stress disorder (PTSD). Sleep effects on extinction may contribute to such risk. Neural activations to fear extinction were examined in trauma-exposed participants and associated with sleep variables. Methods: Individuals trauma-exposed within the past 2 years (N = 126, 63 PTSD) completed 2 weeks actigraphy and sleep diaries, three nights ambulatory polysomnography and a 2-day fMRI protocol with Fear-Conditioning, Extinction-Learning and, 24 h later, Extinction-Recall phases. Activations within the anterior cerebrum and regions of interest (ROI) were examined within the total, PTSD-diagnosed and trauma-exposed control (TEC) groups. Sleep variables were used to predict activations within groups and among total participants. Family wise error was controlled at p < 0.05 using nonparametric analysis with 5,000 permutations. …
matched on Conditioning, Classical (mesh), Extinction, Psychological (mesh), Fear (mesh), fear conditioning (text), fear extinction (text)
Empirical support for an involvement of the mesostriatal dopamine system in human fear extinction.
Exposure therapy for anxiety disorders relies on the principle of confronting a patient with the triggers of his fears, allowing him to make the unexpected safety experience that his fears are unfounded and resulting in the extinction of fear responses. In the laboratory, fear extinction is modeled by repeatedly presenting a fear-conditioned stimulus (CS) in the absence of the aversive unconditioned stimulus (UCS) to which it had previously been associated. Classical associative learning theory considers extinction to be driven by an aversive prediction error signal that expresses the expectation violation when not receiving an expected UCS and establishes a prediction of CS non-occurrence. Insufficiencies of this account in explaining various extinction-related phenomena could be resolved by assuming that extinction is an opponent appetitive-like learning process that would be mediated …
matched on Conditioning, Classical (mesh), Extinction, Psychological (mesh), Fear (mesh), fear conditioning (text), fear extinction (text)
Impaired contextual modulation of memories in PTSD: an fMRI and psychophysiological study of extinction retention and fear renewal.
Post-traumatic stress disorder (PTSD) patients display pervasive fear memories, expressed indiscriminately. Proposed mechanisms include enhanced fear learning and impaired extinction or extinction recall. Documented extinction recall deficits and failure to use safety signals could result from general failure to use contextual information, a hippocampus-dependent process. This can be probed by adding a renewal phase to standard conditioning and extinction paradigms. Human subjects with PTSD and combat controls were conditioned (skin conductance response), extinguished, and tested for extinction retention and renewal in a scanner (fMRI). Fear conditioning (light paired with shock) occurred in one context, followed by extinction in another, to create danger and safety contexts. The next day, the extinguished conditioned stimulus (CS+E) was re-presented to assess extinction recall (safety c…
matched on Conditioning, Classical (mesh), Extinction, Psychological (mesh), Fear (mesh), fear conditioning (text), Amygdala (keyword)
Anticipatory feelings: Neural correlates and linguistic markers.
This review introduces anticipatory feelings (AF) as a new construct related to the process of anticipation and prediction of future events. AF, defined as the state of awareness of physiological and neurocognitive changes that occur within an oganism in the form of a process of adapting to future events, are an important component of anticipation and expectancy. They encompass bodily-related interoceptive and affective components and are influenced by intrapersonal and dispositional factors, such as optimism, hope, pessimism, or worry. In the present review, we consider evidence from animal and human research, including neuroimaging studies, to characterize the brain structures and brain networks involved in AF. The majority of studies reviewed revealed three brain regions involved in future oriented feelings: 1) the insula; 2) the ventromedial prefrontal cortex (vmPFC); and 3) the amyg…
matched on Amygdala (mesh), Fear (keyword)
Amygdala-Cortical Connectivity: Associations with Anxiety, Development, and Threat.
Background: Amygdala-prefrontal cortex (PFC) functional connectivity may be influenced by anxiety and development. A prior study on anxiety found age-specific dysfunction in the ventromedial PFC (vmPFC), but not amygdala, associated with threat-safety discrimination during extinction recall (Britton et al.). However, translational research suggests that amygdala-PFC circuitry mediates responses following learned extinction. Anxiety-related perturbations may emerge in functional connectivity within this circuit during extinction recall tasks. The current report uses data from the prior study to examine how anxiety and development relate to task-dependent amygdala-PFC connectivity. Methods: Eighty-two subjects (14 anxious youths, 15 anxious adults, 25 healthy youths, 28 healthy adults) completed an extinction recall task, which directed attention to different aspects of stimuli. Generalize…
matched on Conditioning, Classical (mesh), Extinction, Psychological (mesh), Fear (mesh), Amygdala (mesh)
Meta-analysis of functional brain imaging in specific phobia.
Although specific phobia is a prevalent anxiety disorder, evidence regarding its underlying functional neuroanatomy is inconsistent. A meta-analysis was undertaken to identify brain regions that were consistently responsive to phobic stimuli, and to characterize changes in brain activation following cognitive behavioral therapy (CBT). We searched the PubMed, SCOPUS and PsycINFO databases to identify positron emission tomography and functional magnetic resonance imaging studies comparing brain activation in specific phobia patients and healthy controls. Two raters independently extracted study data from all the eligible studies, and pooled coordinates from these studies using activation likelihood estimation, a quantitative meta-analytic technique. Resulting statistical parametric maps were compared between patients and healthy controls, in response to phobic versus fear-evoking stimuli, …
matched on Amygdala (mesh), fear conditioning (text)
Differential activation of the amygdala and the 'social brain' during fearful face-processing in Asperger Syndrome.
Impaired social cognition is a core feature of autism. There is much evidence showing people with autism use a different cognitive style than controls for face-processing. We tested if people with autism would show differential activation of social brain areas during a face-processing task. Thirteen adults with high-functioning autism or Asperger Syndrome (HFA/AS) and 13 matched controls. We used fMRI to investigate 'social brain' activity during perception of fearful faces. We employed stimuli known to reliably activate the amygdala and other social brain areas, and ROI analyses to investigate brain areas responding to facial threat as well as those showing a linear response to varying threat intensities. We predicted: (1) the HFA/AS group would show differential activation (as opposed to merely deficits) of the social brain compared to controls and (2) that social brain areas would res…
matched on Fear (mesh), Amygdala (mesh)
Mating-induced release of oxytocin in the mouse lateral septum: Implications for social fear extinction.
In mammals, some physiological conditions are associated with the high brain oxytocin (OXT) system activity. These include lactation in females and mating in males and females, both of which have been linked to reduced stress responsiveness and anxiolysis. Also, in a murine model of social fear conditioning (SFC), enhanced brain OXT signaling in lactating mice, specifically in the lateral septum (LS), was reported to underlie reduced social fear expression. Here, we studied the effects of mating in male mice on anxiety-related behaviour, social (and cued) fear expression and its extinction, and the activity of OXT neurons reflected by cFos expression and OXT release in the LS and amygdala. We further focused on the involvement of brain OXT in the mating-induced facilitation of social fear extinction. We could confirm the anxiolytic effect of mating in male mice irrespective of the occurr…
matched on Extinction, Psychological (mesh), Fear (mesh), Amygdala (mesh), fear conditioning (text), fear extinction (text)