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
Pain-catastrophizing and fear-avoidance beliefs as mediators between post-traumatic stress symptoms and pain following whiplash injury - A prospective cohort study.
Background: Knowledge about the course of recovery after whiplash injury is important. Most valuable is identification of prognostic factors that may be reversed by intervention. The mutual maintenance model outlines how post-traumatic stress symptoms (PTSS) and pain may be mutually maintained by attention bias, fear, negative affect and avoidance behaviours. In a similar vein, the fear-avoidance model describes how pain-catastrophizing (PCS), fear-avoidance beliefs (FA) and depression may result in persistent pain. These mechanisms still need to be investigated longitudinally in a whiplash cohort. Methods: A longitudinal cohort design was used to assess patients for pain intensity and psychological distress after whiplash injury. Consecutive patients were all contacted within 3 weeks after their whiplash injury (n = 198). Follow-up questionnaires were sent 3 and 6 months post-injury. La…
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Serotonin engages an anxiety and fear-promoting circuit in the extended amygdala.
Serotonin (also known as 5-hydroxytryptamine (5-HT)) is a neurotransmitter that has an essential role in the regulation of emotion. However, the precise circuits have not yet been defined through which aversive states are orchestrated by 5-HT. Here we show that 5-HT from the dorsal raphe nucleus (5-HTDRN) enhances fear and anxiety and activates a subpopulation of corticotropin-releasing factor (CRF) neurons in the bed nucleus of the stria terminalis (CRFBNST) in mice. Specifically, 5-HTDRN projections to the BNST, via actions at 5-HT2C receptors (5-HT2CRs), engage a CRFBNST inhibitory microcircuit that silences anxiolytic BNST outputs to the ventral tegmental area and lateral hypothalamus. Furthermore, we demonstrate that this CRFBNST inhibitory circuit underlies aversive behaviour following acute exposure to selective serotonin reuptake inhibitors (SSRIs). This early aversive effect is …
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Phosphoproteomic Analysis Reveals a Novel Mechanism of CaMKIIα Regulation Inversely Induced by Cocaine Memory Extinction versus Reconsolidation.
Unlabelled: Successful addiction treatment depends on maintaining long-term abstinence, making relapse prevention an essential therapeutic goal. However, exposure to environmental cues associated with drug use often thwarts abstinence efforts by triggering drug using memories that drive craving and relapse. We sought to develop a dual approach for weakening cocaine memories through phosphoproteomic identification of targets regulated in opposite directions by memory extinction compared with reconsolidation in male Sprague-Dawley rats that had been trained to self-administer cocaine paired with an audiovisual cue. We discovered a novel, inversely regulated, memory-dependent phosphorylation event on calcium-calmodulin-dependent kinase II α (CaMKIIα) at serine (S)331. Correspondingly, extinction-associated S331 phosphorylation inhibited CaMKIIα activity. Intra-basolateral amygdala inhibitio…
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A fast pathway for fear in human amygdala.
A fast, subcortical pathway to the amygdala is thought to have evolved to enable rapid detection of threat. This pathway's existence is fundamental for understanding nonconscious emotional responses, but has been challenged as a result of a lack of evidence for short-latency fear-related responses in primate amygdala, including humans. We recorded human intracranial electrophysiological data and found fast amygdala responses, beginning 74-ms post-stimulus onset, to fearful, but not neutral or happy, facial expressions. These responses had considerably shorter latency than fear responses that we observed in visual cortex. Notably, fast amygdala responses were limited to low spatial frequency components of fearful faces, as predicted by magnocellular inputs to amygdala. Furthermore, fast amygdala responses were not evoked by photographs of arousing scenes, which is indicative of selective …
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Behavioral and neural stability of attention bias to threat in healthy adolescents.
Considerable translational research on anxiety examines attention bias to threat and the efficacy of attention training in reducing symptoms. Imaging research on the stability of brain functions engaged by attention bias tasks could inform such research. Perturbed fronto-amygdala function consistently arises in attention bias research on adolescent anxiety. The current report examines the stability of the activation and functional connectivity of these regions on the dot-probe task. Functional magnetic resonance imaging (fMRI) activation and connectivity data were acquired with the dot-probe task in 39 healthy youth (f=18, Mean Age=13.71years, SD=2.31) at two time points, separated by approximately nine weeks. Intraclass-correlations demonstrate good reliability in both neural activation for the ventrolateral PFC and task-specific connectivity for fronto-amygdala circuitry. Behavioral me…
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Amygdala Signaling during Foraging in a Hazardous Environment.
We recorded basolateral amygdala (BL) neurons in a seminaturalistic foraging task. Rats had to leave their nest to retrieve food in an elongated arena inhabited by a mechanical predator. There were marked trial-to-trial variations in behavior. After poking their head into the foraging arena and waiting there for a while, rats either retreated to their nest or initiated foraging. Before initiating foraging, rats waited longer on trials that followed failed than successful trials indicating that prior experience influenced behavior. Upon foraging initiation, most principal cells (Type-1) reduced their firing rate, while in a minority (Type-2) it increased. When rats aborted foraging, Type-1 cells increased their firing rates, whereas in Type-2 cells it did not change. Surprisingly, the opposite activity profiles of Type-1 and Type-2 units were also seen in control tasks devoid of explicit …
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Sleepiness induced by sleep-debt enhanced amygdala activity for subliminal signals of fear.
Background: Emotional information is frequently processed below the level of consciousness, where subcortical regions of the brain are thought to play an important role. In the absence of conscious visual experience, patients with visual cortex damage discriminate the valence of emotional expression. Even in healthy individuals, a subliminal mechanism can be utilized to compensate for a functional decline in visual cognition of various causes such as strong sleepiness. In this study, sleep deprivation was simulated in healthy individuals to investigate functional alterations in the subliminal processing of emotional information caused by reduced conscious visual cognition and attention due to an increase in subjective sleepiness. Fourteen healthy adult men participated in a within-subject crossover study consisting of a 5-day session of sleep debt (SD, 4-h sleep) and a 5-day session of s…
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Cognitive-behavioral therapy for generalized anxiety disorder is associated with attenuation of limbic activation to threat-related facial emotions.
Background: The neural processes underlying the benefits of cognitive behavioral treatment (CBT) for generalized anxiety disorder (GAD) are not well understood. Methods: Twenty-one (n=21) adults with a principal diagnosis of GAD and eleven (n=11) non-anxious healthy controls (HC) underwent functional magnetic resonance imaging while completing a facial emotion processing task. Responses to threat-related emotionality (i.e., the contrast of fear and angry vs. happy faces) were assessed at pretreatment and again following 10 sessions of CBT in the GAD group and a comparable waiting period in the HC group. Results: At pretreatment, GAD participants displayed blunted responses in the amygdala, insula, and anterior cingulate to the happy face-processing comparison condition, and greater amygdalo-insular connectivity. CBT was associated with attenuated amygdalar and subgenual anterior cingulat…
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Intergenerational transmission of emotional trauma through amygdala-dependent mother-to-infant transfer of specific fear.
Emotional trauma is transmitted across generations. For example, children witnessing their parent expressing fear to specific sounds or images begin to express fear to those cues. Within normal range, this is adaptive, although pathological fear, such as occurs in posttraumatic stress disorder or specific phobias, is also socially transmitted to children and is thus of clinical concern. Here, using a rodent model, we report a mother-to-infant transfer of fear to a novel peppermint odor, which is dependent on the mother expressing fear to that smell in pups' presence. Examination of pups' neural activity using c-Fos early gene expression and (14)C 2-deoxyglucose autoradiography during mother-to-infant fear transmission revealed lateral and basal amygdala nuclei activity, with a causal role highlighted by pharmacological inactivation of pups' amygdala preventing the fear transmission. Mate…
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Fear from the heart: sensitivity to fear stimuli depends on individual heartbeats.
Cognitions and emotions can be influenced by bodily physiology. Here, we investigated whether the processing of brief fear stimuli is selectively gated by their timing in relation to individual heartbeats. Emotional and neutral faces were presented to human volunteers at cardiac systole, when ejection of blood from the heart causes arterial baroreceptors to signal centrally the strength and timing of each heartbeat, and at diastole, the period between heartbeats when baroreceptors are quiescent. Participants performed behavioral and neuroimaging tasks to determine whether these interoceptive signals influence the detection of emotional stimuli at the threshold of conscious awareness and alter judgments of emotionality of fearful and neutral faces. Our results show that fearful faces were detected more easily and were rated as more intense at systole than at diastole. Correspondingly, amy…
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PACAP receptor gene polymorphism impacts fear responses in the amygdala and hippocampus.
We have recently found higher circulating levels of pituitary adenylate cyclase-activating polypeptide (PACAP) associated with posttraumatic stress disorder (PTSD) symptoms in a highly traumatized cohort of women but not men. Furthermore, a single nucleotide polymorphism in the PACAP receptor gene ADCYAP1R1, adenylate cyclase activating polypeptide 1 receptor type 1, was associated with individual differences in PTSD symptoms and psychophysiological markers of fear and anxiety. The current study outlines an investigation of individual differences in brain function associated with ADCYAP1R1 genotype. Forty-nine women who had experienced moderate to high levels of lifetime trauma participated in a functional MRI task involving passive viewing of threatening and neutral face stimuli. Analyses focused on the amygdala and hippocampus, regions that play central roles in the pathophysiology of …
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Aversive learning modulates cortical representations of object categories.
Experimental studies of conditioned learning reveal activity changes in the amygdala and unimodal sensory cortex underlying fear acquisition to simple stimuli. However, real-world fears typically involve complex stimuli represented at the category level. A consequence of category-level representations of threat is that aversive experiences with particular category members may lead one to infer that related exemplars likewise pose a threat, despite variations in physical form. Here, we examined the effect of category-level representations of threat on human brain activation using 2 superordinate categories (animals and tools) as conditioned stimuli. Hemodynamic activity in the amygdala and category-selective cortex was modulated by the reinforcement contingency, leading to widespread fear of different exemplars from the reinforced category. Multivariate representational similarity analyse…
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Neural processing correlates of assaultive violence exposure and PTSD symptoms during implicit threat processing: a network-level analysis among adolescent girls.
Assaultive violence exposure during childhood is a significant risk factor for posttraumatic stress disorder (PTSD). The purpose of the present study was to characterize the relationships of assault and PTSD severity with the organization of large-scale networks identified during emotion processing. Adolescent girls aged 12-16 with (N=15) and without (N=15) histories of assault underwent functional magnetic resonance imaging (fMRI) while engaged in a task that presented images of fearful or neutral facial expressions. Independent component analysis (ICA) identified a frontocingulate network, a frontoparietal network, and a default mode network. Assault exposure was associated with significantly greater activation of the frontocingulate network for fear versus neutral faces. Within the frontocingulate network, Posttraumatic stress disorder (PTSD) severity was associated with weakened func…
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A developmental shift from positive to negative connectivity in human amygdala-prefrontal circuitry.
Recent human imaging and animal studies highlight the importance of frontoamygdala circuitry in the regulation of emotional behavior and its disruption in anxiety-related disorders. Although tracing studies have suggested changes in amygdala-cortical connectivity through the adolescent period in rodents, less is known about the reciprocal connections within this circuitry across human development, when these circuits are being fine-tuned and substantial changes in emotional control are observed. The present study examined developmental changes in amygdala-prefrontal circuitry across the ages of 4-22 years using task-based functional magnetic resonance imaging. Results suggest positive amygdala-prefrontal connectivity in early childhood that switches to negative functional connectivity during the transition to adolescence. Amygdala-medial prefrontal cortex functional connectivity was sign…
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Fear bradycardia and activation of the human periaqueductal grey.
Animal models of predator defense distinguish qualitatively different behavioral modes that are activated at increasing levels of predation threat. A defense mode observed at intermediate threat levels is freezing: a cessation of locomotion that is characterized by a parasympathetically dominated autonomic nervous system response that causes heart rate deceleration, or fear bradycardia. Studies in rodents have shown that freezing depends on amygdalar projections to the periaqueductal grey (PAG). In humans, freezing-like behaviors are implicated in development and maintenance of psychopathology, but neural mechanisms underlying freezing or its characteristic autonomic response profile have not been identified. Here, we combined event-related blood oxygenation level-dependent functional MRI (BOLD-fMRI) with autonomic response measures in a picture viewing paradigm to probe activity and int…
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Hypervigilance for fear after basolateral amygdala damage in humans.
Recent rodent research has shown that the basolateral amygdala (BLA) inhibits unconditioned, or innate, fear. It is, however, unknown whether the BLA acts in similar ways in humans. In a group of five subjects with a rare genetic syndrome, that is, Urbach-Wiethe disease (UWD), we used a combination of structural and functional neuroimaging, and established focal, bilateral BLA damage, while other amygdala sub-regions are functionally intact. We tested the translational hypothesis that these BLA-damaged UWD-subjects are hypervigilant to facial expressions of fear, which are prototypical innate threat cues in humans. Our data indeed repeatedly confirm fear hypervigilance in these UWD subjects. They show hypervigilant responses to unconsciously presented fearful faces in a modified Stroop task. They attend longer to the eyes of dynamically displayed fearful faces in an eye-tracked emotion r…
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Pain-related avoidance versus endurance in primary care patients with subacute back pain: psychological characteristics and outcome at a 6-month follow-up.
Recent research has found individual differences in back pain patients due to behavioral avoidance vs persistence. However, there is a lack of prospective studies of nonspecific low back pain patients. The avoidance-endurance model (AEM) suggests at least 3 pathways leading to chronic pain: fear-avoidance response, distress-endurance response, and eustress-endurance response. We sought to compare these 3 maladaptive subgroups with an adaptive group using a classification tool that included the following scales: the thought suppression and behavioral endurance subscale of the Avoidance-Endurance Questionnaire and the Beck Depression Inventory. The psychological characteristics, and pain and disability of the AEM subgroups were investigated. We report results from 177 patients with subacute nonspecific low back pain at the start of outpatient treatment and at follow-up after 6 months. At b…
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Fears of compassion: development of three self-report measures.
Objectives: There is increasing evidence that helping people develop compassion for themselves and others has powerful impacts on negative affect and promotes positive affect. However, clinical observations suggest that some individuals, particularly those high in self-criticism, can find self-compassion and receiving compassion difficult and can be fearful of it. This study therefore developed measures of fear of: compassion for others, compassion from others, and compassion for self. We also explored the relationship of these fears with established compassion for self and compassion for others measures, self-criticism, attachment styles, and depression, anxiety, and stress. Method: Students (N= 222) and therapists (N= 53) completed measures of fears of compassion, self-compassion, compassion for others, self-criticism, adult attachment, and psychopathology. Results: Fear of compassion …
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General anxiety, depression, and physical health in relation to symptoms of heart-focused anxiety- a cross sectional study among patients living with the risk of serious arrhythmias and sudden cardiac death.
Objective: To investigate the role of three distinct symptoms of heart-focused anxiety (cardio-protective avoidance, heart-focused attention, and fear about heart sensations) in relation to general anxiety, depression and physical health in patients referred to specialized cardio-genetics outpatient clinics in Norway for genetic investigation and counseling. Methods: Participants were 126 patients (mean age 45 years, 53.5% women). All patients were at higher risk than the average person for serious arrhythmias and sudden cardiac death (SCD) because of a personal or a family history of an inherited cardiac disorder (familial long QT syndrome or hypertrophic cardiomyopathy). Patients filled in, Hospital Anxiety and Depression Scale, Short-Form 36 Health Survey, and Cardiac Anxiety Questionnaire, two weeks before the scheduled counseling session. Results: The patients experienced higher lev…
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Amygdala activity correlates with attentional bias in PTSD.
Post-traumatic stress disorder (PTSD) is an anxiety disorder arising in the aftermath of a traumatic event. The most prevalent hypothesis is that of an increased amygdala activity to threat cues. The amygdala has also shown an implication in orienting attention toward threat. The aim of the study was to explore the correlations between amygdala activity, symptom severity and attentional bias in PTSD. Patients and healthy controls were assayed on an fMRI emotional face matching task and an attentional detection of target (DOT) task. The amygdala showed enhanced activity in PTSD (vs. controls). It positively correlated with anxiety scores and PTSD symptomatology. It also positively correlated with the disengagement index. Mostly, these results provide preliminary support for an implication of the amygdala in attention orientation to threat in PTSD. These results are further discussed in li…
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Fear and stop: a role for the amygdala in motor inhibition by emotional signals.
Rapid interruption of ongoing motor actions is crucial to respond to unexpected and potentially threatening situations. Yet, it remains unclear how motor inhibition interacts with emotional processes. Here we used a modified stop-signal task including an emotional component (fearful faces) to investigate whether neural circuits engaged by action suppression are modulated by task-irrelevant threat-related signals. Behavioral performance showed that reaction times were prolonged in the presence of incidental threat information, and this emotional slowing was enhanced when incorrect responses were made following stop signals. However, the speed and efficacy of voluntary inhibition was unaffected by emotion. Brain imaging data revealed that emotional cues during stop trials interacted with activity in limbic regions encompassing the basal amygdala and sublenticular extended amygdala region, …
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Neural activity associated with monitoring the oscillating threat value of a tarantula.
Phylogenetic threats such as spiders evoke our deepest primitive fears. When close or looming, such threats engage evolutionarily conserved monitoring systems and defense reactions that promote self-preservation. With the use of a modified behavioral approach task within functional MRI, we show that, as a tarantula was placed closer to a subject's foot, increased experiences of fear coincided with augmented activity in a cascade of fear-related brain networks including the periaqueductal gray, amygdala, and bed nucleus of the stria terminalis. Activity in the amygdala was also associated with underprediction of the tarantula's threat value and, in addition to the bed nucleus of the stria terminalis, with monitoring the tarantula's threat value as indexed by its direction of movement. Conversely, the orbitofrontal cortex was engaged as the tarantula grew more distant, suggesting that this…
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Coherent amygdalocortical theta promotes fear memory consolidation during paradoxical sleep.
Brain activity in sleep plays a crucial role in memory consolidation, an offline process that determines the long-term strength of memory traces. Consolidation efficacy differs across individuals, but the brain activity dynamics underlying these differences remain unknown. Here, we studied how interindividual variability in fear memory consolidation relates to neural activity in brain structures that participate in Pavlovian fear learning. From the end of training to testing 24 h later, some rats showed increased and others decreased conditioned fear responses. We found that overnight bidirectional changes in fear memory were selectively correlated with modifications in theta coherence between the amygdala, medial prefrontal cortex, and hippocampus during paradoxical sleep. Thus, our results suggest that theta coordination in the limbic system may influence interindividual differences in…
matched on Fear (mesh), Amygdala (mesh)
Neural responses to masked fear faces: sex differences and trauma exposure in posttraumatic stress disorder.
Although women have a greater propensity than men to develop posttraumatic stress disorder (PTSD) following trauma, sex differences in neural activations to threat have received little investigation. This study tested the prediction that trauma would heighten activity in automatic fear-processing networks to a greater extent in women than in men. Functional magnetic resonance imaging (fMRI) data were recorded in 23 participants with PTSD (13 women, 10 men), 21 trauma-exposed controls (9 women, 12 men), and 42 non-trauma-exposed controls (22 women, 20 men) while they viewed masked facial expressions of fear. Exposure to trauma was associated with enhanced brainstem activity to fear in women, regardless of the presence of PTSD, but in men, it was associated only with the development of PTSD. Men with PTSD displayed greater hippocampal activity to fear than did women. Both men and women wit…
matched on Fear (mesh), Amygdala (mesh)
Amygdala damage affects event-related potentials for fearful faces at specific time windows.
The amygdala is known to influence processing of threat-related stimuli in distant brain regions, including visual cortex. The time-course of these distant influences is unknown, although this information is important for resolving debates over likely pathways mediating an apparent rapidity in emotional processing. To address this, we recorded event-related potentials (ERPs) to seen fearful face expressions, in preoperative patients with medial temporal lobe epilepsy who had varying degrees of amygdala pathology, plus healthy volunteers. We found that amygdala damage diminished ERPs for fearful versus neutral faces within the P1 time-range, approximately 100-150 ms, and for a later component at approximately 500-600 ms. Individual severity of amygdala damage determined the magnitude of both these effects, consistent with a causal amygdala role. By contrast, amygdala damage did not affect…
matched on Fear (mesh), Amygdala (mesh)