Modulation of the startle reflex across time by unpleasant pictures distinguishes dysphoric from non-dysphoric women. Int J Psychophysiol 2013 Feb;87(2):124-9
Date
11/14/2012Pubmed ID
23147394Pubmed Central ID
PMC5828007DOI
10.1016/j.ijpsycho.2012.11.002Scopus ID
2-s2.0-84875086098 (requires institutional sign-in at Scopus site) 14 CitationsAbstract
While several investigators have examined differences in affective startle modulation between individuals with and without Major Depressive Disorder, fewer researchers have evaluated the time course of this response, particularly in dysphoric individuals. The purpose of this study was to evaluate emotion modulation of the startle reflex during and after the presentation of affective pictures in dysphoric and non-dysphoric women. Dysphoric subjects showed attenuated startle for unpleasant compared to neutral pictures 1.5s post-stimulus onset relative to non-dysphoric subjects and potentiated startle for unpleasant compared to neutral pictures 3s post-stimulus offset. These findings extend the literature on the time course of affective startle modulation in dysphoria, and mirror results of studies in which other psychophysiological responses were examined in this population with regard to negative emotion.
Author List
Taubitz LE, Robinson JS, Larson CLAuthor
Christine Larson PhD Associate Professor in the Psychology department at University of Wisconsin - MilwaukeeMESH terms used to index this publication - Major topics in bold
Acoustic StimulationAdolescent
Affect
Analysis of Variance
Blinking
Depression
Electromyography
Emotions
Female
Humans
Photic Stimulation
Psychiatric Status Rating Scales
Reflex, Startle
Young Adult
