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October 2021

Visual and auditory event-related potentials elicited by linguistic and non-linguistic incongruities

Author(s): Macar, F.

Journal/Book: Neurosci Lett. 1986; 63: 109-14.

Abstract: To test the hypothesis that violation of overlearned relations between stimuli in a sequence is critical for eliciting the event-related potential (ERP) N400, we recorded scalp ERPs in sequences where interstimulus relations were either overlearned (sentences or famous songs) or not (geometric figures or scale notes): 25% of the sequences ended with an incongruous stimulus. N400 occurred after incongruous words in sentences only. It seems to index the further processing necessary to specify the nature of the mismatch detected between attended and expected stimuli, when complex information is involved. Earlier components also varied as a function of experimental factors.

Keyword(s): Auditory Perception|PH. Brain|PH. Evoked Potentials|. Language|. Mental Processes|PH. Visual Perception|PH

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