Reducing fear overgeneralization in children using a novel perceptual discrimination task.

Fear generalization, while adaptive, can be detrimental when occurring in excess. To this end a perceptual discrimination training task was created with a goal of decreasing fear overgeneralization. The current study tested the effectiveness of the training task among typically-developing children. Participants (n = 73) were randomly assigned into a training, placebo or no task group. Following a differential fear-conditioning task, participants in the first two groups underwent the discrimination training or placebo task. An assessment task was then administered. Finally, all participants completed a fear generalization test, consisting of 11 morphs ranging in perceptual similarity from the threat cue to the safety cue. Physiological and self-report measures were collected. Fear-conditioning was achieved in both physiological and self-report measures. Further, in the assessment task, the training group showed better perceptual discrimination than did the placebo group. Last, the training group exhibited less overgeneralization of affective stimuli as indicated by a physiological measure than did the two control conditions. Findings suggest that the perceptual discrimination training task effectively moderated fear overgeneralization in children. This adds to previous evidence of the task's effectiveness among adults.

[1]  B. Birmaher,et al.  Psychometric properties of the Screen for Child Anxiety Related Emotional Disorders (SCARED): a replication study. , 1999, Journal of the American Academy of Child and Adolescent Psychiatry.

[2]  N. Fox,et al.  Fear conditioning and extinction across development: Evidence from human studies and animal models , 2014, Biological Psychology.

[3]  E. Leibenluft,et al.  Differences in neural response to extinction recall in young adults with or without history of behavioral inhibition , 2017, Development and Psychopathology.

[4]  Monique Ernst,et al.  Response to learned threat: An FMRI study in adolescent and adult anxiety. , 2013, The American journal of psychiatry.

[5]  Daniel S Pine,et al.  Anxiety and anxiety disorders in children and adolescents: developmental issues and implications for DSM-V. , 2009, The Psychiatric clinics of North America.

[6]  M. Kovacs.  The Children's Depression, Inventory (CDI). , 1985, Psychopharmacology bulletin.

[7]  B. Vervliet,et al.  Perceptual discrimination in fear generalization: Mechanistic and clinical implications , 2015, Neuroscience & Biobehavioral Reviews.

[8]  Terry E. Duncan,et al.  An introduction to latent growth curve modeling , 2004 .

[9]  Tomer Shechner,et al.  A novel perceptual discrimination training task: Reducing fear overgeneralization in the context of fear learning. , 2017, Behaviour research and therapy.

[10]  Bram Vervliet,et al.  Gradients of fear: How perception influences fear generalization. , 2017, Behaviour research and therapy.

[11]  David Rogosa,et al.  A growth curve approach to the measurement of change. , 1982 .

[12]  R. Paz,et al.  Over-generalization in youth with anxiety disorders , 2017, Social neuroscience.

[13]  M. Fanselow,et al.  The Danger of LeDoux and Pine's Two-System Framework for Fear. , 2017, The American journal of psychiatry.

[14]  E. Leibenluft,et al.  A developmental analysis of threat/safety learning and extinction recall during middle childhood. , 2016, Journal of experimental child psychology.

[15]  Bram Vervliet,et al.  Fear Generalization in Humans: Systematic Review and Implications for Anxiety Disorder Research. , 2015, Behavior therapy.

[16]  Mihaela Duta,et al.  Training discrimination diminishes maladaptive avoidance of innocuous stimuli in a fear conditioning paradigm , 2017, PloS one.

[17]  D Edwards,et al.  The efficiency of simulation-based multiple comparisons. , 1987, Biometrics.

[18]  G. Murphy,et al.  Categories, concepts, and conditioning: how humans generalize fear , 2015, Trends in Cognitive Sciences.

[19]  Robert L. Goldstone.  Effects of Categorization on Color Perception , 1995 .

[20]  D. Pine,et al.  The development of fear learning and generalization in 8-13 year-olds. , 2012, Developmental psychobiology.

[21]  Dirk Hermans,et al.  A new approach for modeling generalization gradients: a case for hierarchical models , 2015, Front. Psychol..

[22]  Geoffrey Hall,et al.  Can theories of animal discrimination explain perceptual learning in humans? , 2014, Psychological bulletin.

[23]  P. Pauli,et al.  Developmental aspects of fear: Comparing the acquisition and generalization of conditioned fear in children and adults , 2016, Developmental psychobiology.

[24]  Emily G. Ronkin,et al.  FEAR CONDITIONING AND EXTINCTION IN ANXIOUS AND NONANXIOUS YOUTH AND ADULTS: EXAMINING A NOVEL DEVELOPMENTALLY APPROPRIATE FEAR‐CONDITIONING TASK , 2015, Depression and anxiety.

[25]  Daniel S Pine,et al.  Generalization of conditioned fear-potentiated startle in humans: experimental validation and clinical relevance. , 2008, Behaviour research and therapy.