An event-related potential study of the effects of semantic deviations: an application of a method of sequential-part presentation.
The present study was designed to evaluate the effects of semantic deviations of picture stimuli by applying a method of sequential-part presentations. S1 stimuli were 10 pictures of animals which were divided into 7 x 7 portions and successively presented in random order. S2 stimuli were three types of pictures (A, the same as S1; B, semantically the same but physically different from S1; and C, both semantically and physically different from S1). Subjects were required to name S1 verbally after seeing S2. The largest N400 components of the event-related potential were elicited for Category C of S2, whereas large LPCs were elicited for Categories B and C. This suggests that a method of sequential-part presentations is effective for eliciting the N400 component of the event-related potential for picture stimuli.
Yano
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Faculty of Literature, Kyushu University, Fukuoka, Japan. VFD02360@niftyserve.or.jp
D000328:Adult; D005071:Evoked Potentials / Q000502:physiology*; D005074:Evoked Potentials, Visual / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D011930:Reaction Time / Q000502:physiology; D012660:Semantics; D014796:Visual Perception / Q000502:physiology*