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  • Title: Reaction time facilitation by acoustic task-irrelevant stimuli is not related to startle.
    Author: Lipp OV, Kaplan DM, Purkis HM.
    Journal: Neurosci Lett; 2006 Dec 01; 409(2):124-7. PubMed ID: 17010519.
    Abstract:
    Previous research has been interpreted to suggest that the startle reflex mediates the RT facilitation observed if intense, accessory acoustic stimuli are presented coinciding with the onset of a visual imperative stimulus in a forewarned simple RT task. The present research replicated this finding as well as the facilitation of startle observed during the imperative stimulus. It failed, however, to find any relationship between the size of the blink startle reflex elicited by the accessory acoustic stimuli, which differed in intensity and rise time, and RT or RT facilitation observed on trials with accessory acoustic stimuli. This finding suggests that the RT facilitation is not mediated by the startle reflex elicited by the accessory acoustic stimuli.
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