Spatial S-R compatibility effects in an intentional imitation task |
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Authors: | Email author" target="_blank">Cecilia?HeyesEmail author Elizabeth?Ray |
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Institution: | (1) Dipartimento di Scienze Sociali, Cognitive e Quantitative, Università di Modena e Reggio Emilia, Via Giglioli Valle 9, 42100 Reggio Emilia, Italy;(2) Dipartimento di Psicologia dello Sviluppo e della Socializzazione, Università di Padova, Padova, Italy;(3) Dipartimento di Psicologia Generale, Università di Padova, Padova, Italy |
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Abstract: | The active intermodal mapping hypothesis suggests that intentional imitation is mediated by a highly efficient, special-purpose
mechanism of actor-centered movement encoding. In the present study, using methods from stimulus-response (S-R) compatibility
research, we found no evidence to support this hypothesis. In two experiments, the performance of adult participants instructed
to imitate actorcentered spatial properties of head, arm, and leg movements was affected by task-irrelevant, egocentric spatial
cues. In Experiment 1, participants imitated using the same side of their bodies as did the model, and performance was less
accurate when egocentric stimulus location was response incompatible than when it was response compatible. This effect was
reversed in Experiment 2 when participants imitated using the opposite side of their bodies. These findings, in line with
general process theories of imitation, imply that intentional imitation is mediated by the same processes that mediate responding
to inanimate stimuli on the basis of arbitrary S-R mappings. |
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