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    block this user Pandelis Perakakis

    Post Doctorate

    Economics department, Universitet Jaume I, Castellon

    Psychophysiological correlates of chronic worry: cued versus non-cued fear reaction.

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    Worry has been defined as a chain of thoughts and images that promote mental attempts to avoid anticipation of potential threats. From this perspective worry can be conceptualized as a state of anticipatory anxiety or non-cued fear reaction. The present study examines high and low chronic worriers during cued and non-cued defense reaction paradigms and during resting and self-induced worry periods. The non-cued procedure was based on the cardiac defense paradigm, whereas the cued procedure was based on the startle probe paradigm using pleasant, neutral and unpleasant pictures as cues. High worriers, compared to low worriers, showed (a) a greater cardiac defense response in the non-cued fear response paradigm, (b) no differences in eye-blink in the startle probe paradigm, (c) reduced skin conductance reactivity during the startle probe paradigm and (d) reduced Respiratory Sinus Arrhythmia, accompanied by increased respiratory rate and decreased expiratory period, during the resting period. These results support the notion of chronic worry as a state of anticipatory anxiety, accompanied by indices of reduced vagal control, that modulates non-cued defense reactions.

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    Description

    Title : Psychophysiological correlates of chronic worry: cued versus non-cued fear reaction.
    Author(s) : Luis Carlos Delgado, Pedro Guerra, Pandelis Perakakis, José Luís Mata, María Nieves Pérez, Jaime Vila
    Abstract : Worry has been defined as a chain of thoughts and images that promote mental attempts to avoid anticipation of potential threats. From this perspective worry can be conceptualized as a state of anticipatory anxiety or non-cued fear reaction. The present study examines high and low chronic worriers during cued and non-cued defense reaction paradigms and during resting and self-induced worry periods. The non-cued procedure was based on the cardiac defense paradigm, whereas the cued procedure was based on the startle probe paradigm using pleasant, neutral and unpleasant pictures as cues. High worriers, compared to low worriers, showed (a) a greater cardiac defense response in the non-cued fear response paradigm, (b) no differences in eye-blink in the startle probe paradigm, (c) reduced skin conductance reactivity during the startle probe paradigm and (d) reduced Respiratory Sinus Arrhythmia, accompanied by increased respiratory rate and decreased expiratory period, during the resting period. These results support the notion of chronic worry as a state of anticipatory anxiety, accompanied by indices of reduced vagal control, that modulates non-cued defense reactions.
    Keywords : adolescent, anxiety, anxiety physiopathology, anxiety psychology, cues, fear, fear physiology, fear psychology, female, galvanic skin response, galvanic skin response physiology, heart rate, heart rate physiology, humans, psychophysiology, startle reactio

    Subject : unspecified
    Area : Other
    Language : English
    Year : 2009

    Affiliations Economics department, Universitet Jaume I, Castellon
    Journal : International Journal of Psychophysiology
    Volume : 74
    Issue : 3
    Publisher : Elsevier B.V.
    Pages : 280-287
    Url : http://www.ncbi.nlm.nih.gov/pubmed/19819267

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