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Title: Unpleasant Body Posture Does Not Induce Affective Modulation of Startle
Authors: Ceunen, Erik ×
Dankaerts, Wim
Vlaeyen, Johan
Van Diest, Ilse #
Issue Date: Sep-2012
Publisher: Wiley
Host Document: Psychophysiology vol:49 issue:S1 pages:S92-S93
Conference: 52nd Annual Meeting of the Society for Psychophysiological Research (SPR) edition:52 location:New Orleans, Louisiana date:September 19-23, 2012
Article number: 3-103
Abstract: NOTE: THIS POSTER WAS BASED ON A PRELIMINARY ANALYSIS. WE HAVE SINCE RE-EXAMINED THE DATA AND HAVE PUBLISHED A PAPER WITH AN ADJUSTED CONCLUSION DIFFERENT FROM THIS POSTER.

POSTER ABSTRACT: The startle response is associated with a flexed body posture. In the current study we investigated whether there was an effect of body posture on the eye-blink component of startle.

In the absence of any stimulation, other than a fixation cross and the occasional administration of a startle probe, subjects were required to consecutively assume an extended, upright and flexed static posture, each posture lasting four minutes and each followed by a series of self-report measures. This procedure was repeated a second time. The order of postures was counterbalanced between subjects. Eye-blink startle magnitude as well as self-reported valence were our main dependent variables.

Although eye-blink startle magnitudes were not different for the three different postures, the extended posture was rated as significantly more aversive than either of the two other postures, which were rated closer to neutral. The absence of increased startle magnitude for the unpleasant as compared to the neutrally valenced postures is intriguing given that startle is commonly assumed to be modulated by affective valence. Possible explanations for these results will be discussed.
Description: NOTE: THIS POSTER WAS BASED ON A PRELIMINARY ANALYSIS. WE HAVE SINCE RE-EXAMINED THE DATA AND HAVE PUBLISHED A PAPER WITH AN ADJUSTED CONCLUSION DIFFERENT FROM THIS POSTER.
URI: 
ISSN: 0048-5772
Publication status: published
KU Leuven publication type: IMa
Appears in Collections:Health Psychology
Research Group for Musculoskeletal Rehabilitation
× corresponding author
# (joint) last author

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