scholarly journals Secure attachment priming protects against relapse of fear in Young adults

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Metaxia Toumbelekis ◽  
Belinda J. Liddell ◽  
Richard A. Bryant
Keyword(s):  
Young Adults ◽  
Anxiety Disorders ◽  
Fear Conditioning ◽  
The Other ◽  
Fear Learning ◽  
Secure Attachment ◽  
Attachment Figure ◽  
Fear Potentiated Startle ◽  
Reinstatement Test

AbstractPrevious studies have shown that activating the attachment system attenuates fear learning. This study aimed to explore whether attachment priming can also impact on fear extinction processes, which underpin the management of anxiety disorders. In this study, 81 participants underwent a standard fear conditioning and extinction protocol on day 1 and returned 24 h later for an extinction recall and reinstatement test. Half the participants were primed to imagine their closest attachment figure prior to undergoing extinction training, while the other half were instructed to imagine a positive situation. Fear-potentiated startle and subjective expectancies of shock were measured as the primary indicators of fear. Attachment priming led to less relapse during the reinstatement test at the physiological but not subjective levels. These findings have translational potential to imply that activating awareness of attachment figures might augment long-term safety memories acquired in existing treatments to reduce relapse of fear.

Fear learning and extinction

2019 ◽  
pp. 113-128
Author(s):  
Tina B Lonsdorf
Keyword(s):  
Anxiety Disorders ◽  
Fear Conditioning ◽  
Association Studies ◽  
Conditioned Fear ◽  
Significant Proportion ◽  
Genetic Association Studies ◽  
Individual Variability ◽  
Fear Learning ◽  
Treatment Programs ◽  
Return Of Fear

Experimental fear conditioning and extinction represent basic forms of associative learning with considerable clinical relevance and serve as laboratory models for the development and treatment of anxiety disorders, respectively. There is considerable inter-individual variation in the ability to acquire and extinguish conditioned fear reactions as well as the return of fear and approximately one third of the variance in human fear conditioning and in the vulnerability for anxiety disorders can be attributed to genetic factors. The experimental paradigms of fear conditioning and extinction are particularly well suited for genetic association studies as these optimally investigate simple behavioral paradigms with sufficient inter-individual variability and clear heritability that elicit robust behavioral responses which are easy to measure and quantify and rely on a well-defined underlying neural circuitry. Understanding the molecular pathways that mediate conditioning and extinction might therefore make an important contribution to the study of anxiety pathophysiology and resilience. Because a significant proportion of patients do not respond to or tolerate standard treatments, such advances may ultimately open up new perspectives for pharmacological interventions (i.e. pharmacologically enhanced CBT) or the individualization of current prevention and treatment programs. In the future, translational work employing a synergy between molecular genetics, neuroimaging, psychophysiology and psychopharmacology will be powerful in unraveling the neurobiology of fear learning and extinction processes and the investigation of genetic polymorphisms in fear learning and extinction processes represents one avenue along this path.

047 Fear-Potentiated Startle and Sleep in Trauma-Exposed Men and Women with and without PTSD

SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A20-A20
Author(s):  
Anne Richards ◽  
Sabra Inslicht ◽  
J Russell Huie ◽  
Leslie Yack ◽  
Laura Straus ◽  
...  
Keyword(s):  
Fear Conditioning ◽  
Stress Condition ◽  
Sleep Onset ◽  
Fear Learning ◽  
Safety Signal ◽  
Ptsd Symptoms ◽  
Learning Retention ◽  
Fear Potentiated Startle ◽  
Learning And Change ◽  
The Relationship

Abstract Introduction Animal and human studies indicate that fear conditioning disrupts subsequent sleep, including REM sleep (REMS). REMS is thought to be central to fear information processing. We utilized an afternoon nap protocol to examine the effects of fear-potentiated startle (FPS), a variant of fear conditioning, on subsequent sleep integrity and REMS in trauma-exposed participants with varying levels of PTSD. We also examined the effects of changes in sleep integrity and REMS on subsequent retention and extinction of pre-sleep learning. Methods Participants (N=47) participated in 3 nap visits. The first was an adaptation nap. The second and third nap visits were counterbalanced: a stress-condition nap, during which participants underwent FPS procedures prior to a nap and assessment of retention of fear and safety signal learning and fear extinction after the nap, and a control visit during which participants had a nap opportunity without stressful procedures. Canonical correlation analysis assessed the relationship between FPS responses and change in subsequent sleep relative to a control nap, as well as the relationship between change in sleep from control to stress condition and both subsequent fear and safety learning retention, and subsequent extinction. Results Results demonstrated a relationship between fear learning and change in sleep and supported a relationship between safety signal learning and subsequent REMS, as well as differential conditioning and wake after sleep onset. Sleep did not predict measures of fear retention or extinction. PTSD symptoms did not predict fear learning or sleep measures. Conclusion These findings replicate prior work showing a relationship between safety learning and REMS, suggesting that this is a core mechanism through which stress impacts fear processing. Further research is critical to further understand this effect, and to examine how different aspects of fear learning impact different components of sleep. This study also demonstrates that nap studies can be a valuable approach for studying the stress-sleep relationship. Support (if any) VA Career Development Award to Dr. Richards (5IK2CX000871-05)

scholarly journals Predictors of Long-Term Extinction of Fear in Humans

2020 ◽  
Author(s):  
Tomislav Damir Zbozinek ◽  
Alexandra Tanner ◽  
Michelle G. Craske
Keyword(s):  
Anxiety Disorders ◽  
Fear Conditioning ◽  
Exposure Therapy ◽  
Present Report ◽  
Important Predictor ◽  
Extinction Rate ◽  
High Trait ◽  
Reward Responsivity

Faster extinction rate predicts less long-term fear in rodents. However, this has scarcely been studied in humans. The present report investigated the association between extinction rate and long-term fear in humans. We additionally evaluated specificity of extinction rate by including other fear conditioning values as predictors, and we evaluated “who” had less long-term fear with trait variables. Results show that faster extinction rate predicted less long-term fear. However, when including other fear conditioning variables, extinction rate no longer predicted long-term fear. Instead, greater fear at the beginning of extinction was the most robust predictor of greater long-term fear, followed by maximum fear during acquisition, and fear at the beginning of acquisition. Additionally, trait reward responsivity predicted less long-term fear. The results suggest that the magnitude of fear prior to extinction is an important predictor of long-term fear, and individuals who have high trait reward responsivity may be protected from fear. This report has relevance for improving our understanding and treatment of anxiety disorders via exposure therapy.

The antidepressant agomelatine reduces fear long term memory but not acquisition or short term expression of fear memories

2011 ◽  
Vol 26 (S2) ◽  
pp. 653-653
Author(s):  
L. Diaz-Mataix ◽  
E. Mocaër ◽  
L. Seguin ◽  
J.E. Ledoux
Keyword(s):  
Fear Conditioning ◽  
Clinical Studies ◽  
Conditioned Fear ◽  
Fear Learning ◽  
Long Term Memory ◽  
Onset Of Action ◽  
Subsequent Exposure ◽  
Preclinical And Clinical Studies ◽  
Antidepressant Action

Alterations in fear learning processes may be implicated in mood disorders. Fear learning has been investigated with Pavlovian classical fear conditioning paradigms, consisting of pairing a neutral conditioned stimulus (CS), such as a tone, with an aversive unconditioned stimulus (US), such as a footshock. Upon subsequent exposure, the CS is perceived as aversive and provokes a fear response.The novel antidepressant agomelatine acts as a melatonergic receptor agonist and a 5-HT2C receptor antagonist. Its antidepressant action was demonstrated in preclinical and clinical studies. Agomelatine has also anxiolytic properties. The aim of this study was to determine how acute agomelatine treatment might differentially alter fear circuits by using auditory fear conditioning in the rat.A single pre-training injection of agomelatine (40 mg/kg intraperitoneally) significantly reduced freezing to the fear arousing CS 24 hours after training but not during training or 3 hours after training. This pattern of results is consistent with an effect on the consolidation of the fear memory. A single pre-testing injection of agomelatine had no effect on conditioned fear expression.These effects of agomelatine should be considered in relation to its antidepressant action. Agomelatine achieved a reduction of fear conditioning in a single dose, while classical SSRIs only reduced fear conditioning after chronic treatment. This finding is consistent with clinical studies suggesting a faster onset of action of agomelatine than classical SSRI treatment.

scholarly journals Aversive Imagery Causes De Novo Fear Conditioning

2019 ◽  
Vol 30 (7) ◽  
pp. 1001-1015 ◽  
Author(s):  
Erik M. Mueller ◽  
Matthias F. J. Sperl ◽  
Christian Panitz
Keyword(s):  
Fear Conditioning ◽  
Visual Imagery ◽  
De Novo ◽  
Aversive Stimulation ◽  
Fear Learning ◽  
Conditioned Stimuli ◽  
Conditioning Paradigm ◽  
The Face ◽  
Fear Potentiated Startle ◽  
External Stimuli

In classical fear conditioning, neutral conditioned stimuli that have been paired with aversive physical unconditioned stimuli eventually trigger fear responses. Here, we tested whether aversive mental images systematically paired with a conditioned stimulus also cause de novo fear learning in the absence of any external aversive stimulation. In two experiments ( N = 45 and N = 41), participants were first trained to produce aversive, neutral, or no imagery in response to three different visual-imagery cues. In a subsequent imagery-based differential-conditioning paradigm, each of the three cues systematically coterminated with one of three different neutral faces. Although the face that was paired with the aversive-imagery cue was never paired with aversive external stimuli or threat-related instructions, participants rated it as more arousing, unpleasant, and threatening and displayed relative fear bradycardia and fear-potentiated startle. These results could be relevant for the development of fear and related disorders without trauma.

scholarly journals Fear conditioning and the basolateral amygdala

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 53 ◽  
Author(s):  
Yajie Sun ◽  
Helen Gooch ◽  
Pankaj Sah
Keyword(s):  
Fear Conditioning ◽  
Basolateral Amygdala ◽  
Neural Circuits ◽  
Long Term Potentiation ◽  
Fear Learning ◽  
Pavlovian Fear Conditioning ◽  
Defensive Responses ◽  
Laboratory Rodents ◽  
Term Potentiation

Fear is a response to impending threat that prepares a subject to make appropriate defensive responses, whether to freeze, fight, or flee to safety. The neural circuits that underpin how subjects learn about cues that signal threat, and make defensive responses, have been studied using Pavlovian fear conditioning in laboratory rodents as well as humans. These studies have established the amygdala as a key player in the circuits that process fear and led to a model where fear learning results from long-term potentiation of inputs that convey information about the conditioned stimulus to the amygdala. In this review, we describe the circuits in the basolateral amygdala that mediate fear learning and its expression as the conditioned response. We argue that while the evidence linking synaptic plasticity in the basolateral amygdala to fear learning is strong, there is still no mechanism that fully explains the changes that underpin fear conditioning.

scholarly journals Independence of Cued and Contextual Components of Fear Conditioning is Gated by the Lateral Habenula

2020 ◽  
Author(s):  
Tomas E. Sachella ◽  
Marina R. Ihidoype ◽  
Christophe Proulx ◽  
Jorge H. Medina ◽  
Pablo Mendez ◽  
...  
Keyword(s):  
Anxiety Disorders ◽  
Fear Conditioning ◽  
Neuronal Activity ◽  
Fear Memory ◽  
Fear Learning ◽  
Training Context ◽  
Lateral Habenula ◽  
Extreme Form ◽  
Pathological Conditions

AbstractFear is an extreme form of aversion that, if inappropriately generalized, initiates pathological conditions such as panic or anxiety disorders. Fear conditioning (FC) is the best understood model of fear learning. FC forms two associations that independently link the cue and the training context to fear responses. The lateral habenula (LHb) encodes aversive information. However, how the LHb participates in fear learning has not been intensively studied. Here we studied the role of the LHb in FC learning using optogenetics and pharmacological tools in rats. We found that disrupting neuronal activity of the LHb during training abolishes independent expression of contextual and cued memories, yet memory is normally expressed when the cue is played in the training context. Our results show that neuronal activity at the LHb regulates independent expression of sub-components of a fear memory, assigning to that structure a previously uncharacterized role as regulator of fear memories.

Effects of Attachment Styles on the Experience of Equity in Heterosexual Couples Relationships

2003 ◽  
Vol 50 (4) ◽  
pp. 298-310 ◽  
Author(s):  
Ina Grau ◽  
Jörg Doll
Keyword(s):  
Attachment Theory ◽  
Attachment Style ◽  
Intimate Relationships ◽  
Attachment Styles ◽  
Experimental Studies ◽  
The Other ◽  
Heterosexual Couples ◽  
Secure Attachment ◽  
Dependent Variables ◽  
Equity Ratio

Abstract. Employing one correlational and two experimental studies, this paper examines the influence of attachment styles (secure, anxious, avoidant) on a person’s experience of equity in intimate relationships. While one experimental study employed a priming technique to stimulate the different attachment styles, the other involved vignettes describing fictitious characters with typical attachment styles. As the specific hypotheses about the single equity components have been developed on the basis of the attachment theory, the equity ratio itself and the four equity components (own outcome, own input, partner’s outcome, partner’s input) are analyzed as dependent variables. While partners with a secure attachment style tend to describe their relationship as equitable (i.e., they give and take extensively), partners who feel anxious about their relationship generally see themselves as being in an inequitable, disadvantaged position (i.e., they receive little from their partner). The hypothesis that avoidant partners would feel advantaged as they were less committed was only supported by the correlational study. Against expectations, the results of both experiments indicate that avoidant partners generally see themselves (or see avoidant vignettes) as being treated equitably, but that there is less emotional exchange than is the case with secure partners. Avoidant partners give and take less than secure ones.

Effects of an Anxiety-Specific Psychometric Factor on Fear Conditioning and Fear Generalization

2017 ◽  
Vol 225 (3) ◽  
pp. 200-213 ◽  
Author(s):  
Christian Baumann ◽  
Miriam A. Schiele ◽  
Martin J. Herrmann ◽  
Tina B. Lonsdorf ◽  
Peter Zwanzger ◽  
...  
Keyword(s):  
Risk Factor ◽  
Anxiety Disorders ◽  
Fear Conditioning ◽  
Longitudinal Design ◽  
Principal Component ◽  
Anxiety And Depression ◽  
Specific Factor ◽  
High Anxious ◽  
Two Factors ◽  
Fear Generalization

Abstract. Conditioning and generalization of fear are assumed to play central roles in the pathogenesis of anxiety disorders. Here we investigate the influence of a psychometric anxiety-specific factor on these two processes, thus try to identify a potential risk factor for the development of anxiety disorders. To this end, 126 healthy participants were examined with questionnaires assessing symptoms of anxiety and depression and with a fear conditioning and generalization paradigm. A principal component analysis of the questionnaire data identified two factors representing the constructs anxiety and depression. Variations in fear conditioning and fear generalization were solely associated with the anxiety factor characterized by anxiety sensitivity and agoraphobic cognitions; high-anxious individuals exhibited stronger fear responses (arousal) during conditioning and stronger generalization effects for valence and UCS-expectancy ratings. Thus, the revealed psychometric factor “anxiety” was associated with enhanced fear generalization, an assumed risk factor for anxiety disorders. These results ask for replication with a longitudinal design allowing to examine their predictive validity.

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