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Influence of a warning stimulus on a motor response under a backward masking paradigm.

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Abstract

type:論文

type:Articles

In this study, we examined whether a warning stimulus affected a motor response to a visual stimuluswhich was not perceived with a backward masking by inferring from electromyogram reaction times(EMG-RT) and event-related potentials (ERPs). Onsets of lateralized readiness potentials (LRPs), P100latency, and P300 amplitude, which indicate perceptual information processing and cognitive informationprocessing, were observed. EMG-RTs and these ERPs components were affected by warning stimulus withor without the backward masking, suggesting that perceptual information processing for motor responsesto the visual stimulus without awareness may be also influenced by the warning stimulus. Moreover,the degree to which a warning stimulus affected duration of perceptual information processing may notdiffered between under the backward masking paradigm and under other stimulus presentations. Therefore,perceptual information processing for the production of motor responses under the backward maskingparadigm may be independent from much higher stages of cognitive information processing such as theattentional resources.

identifier:3

identifier:KJ00007085979

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