Effects of masked stimuli on motor activation: Behavioral and electrophysiological evidence.
Journal of Experimental Psychology Human Perception & PerformancePublished 1 January 1998
Martin Eimer, Friederike Schlaghecken
Citations469
SJR quartileQ1
SJR score1.20
SNIP1.22
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Abstract
Three experiments investigated the influence of unperceived events on response activation. Masked primers were presented before a target. On compatible trials, primes and targets were identical; on incompatible trials, opposite responses were assigned to them. Forced-choice performance indicated that prime identification was prevented by the masking procedure, but overt performance and motor activation as mirrored by the lateralized readiness potential (LRP) were systematically influenced by the prime. The direction of these effects was unexpected: Performance costs for compatible and performance benefits for incompatible trials were obtained relative to a neutral trial condition. The LRP revealed a sequential pattern of motor activation. A partial activation of the response corresponding to the prime was followed by a reverse activation pattern. It is argued that these effects primarily reflect an inhibition of the response initially triggered by the prime.
Keywords
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