The cognitive representation of action: Automatic integration of perceived action effects

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Abstract
Actions have been assumed to be cognitively represented by codes of relevant action features. Six experiments investigated whether irrelevant action features — conditioned response-contingent auditory events — are also coded and integrated into action codes. Subjects responded to visual stimuli by pressing a left- versus right-hand button or by touching a single key once versus twice. Responses produced certain action effects: tones on the left versus the right or tones of low versus high pitch. After subjects had some practice, an “inducing stimulus” was presented together with the reaction stimulus; this inducing stimulus shared features with the action effect of the correct or incorrect response. If action effects were integrated into action codes, inducing stimuli should activate or prime the associated response. Indeed, substantial effects of correspondence or compatibility between inducing stimuli and irrelevant action effects were found in a variety of tasks. Results are interpreted as evidence for an automatic integration of information about action effects and taken as support of an action-concept model of action-effect integration and stimulus-response compatibility.