Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9722710 | International Journal of Psychophysiology | 2005 | 5 Pages |
Abstract
Postural and eye-blink reactions to acoustic startle probes were examined in 24 volunteers, who completed two blocked conditions (baseline, startle). A postural reaction during the startle condition demonstrated a reflexive movement in the anterior-posterior direction, which was not observed during the baseline condition. This reflexive response was positively associated with the eye-blink reflex, such that larger blink magnitude related to greater posterior movement. These findings were not observed for postural movements in the medial-lateral direction. The results suggest that a measurable postural reaction may be observed following a startling acoustic stimulus, which may reflect generalized bodily flexion associated with a preparatory behavioral response.
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Authors
Charles H. Hillman, Elizabeth T. Hsiao-Wecksler, Karl S. Rosengren,