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ERIC Number: EJ913164
Record Type: Journal
Publication Date: 2011-Feb
Pages: 6
Abstractor: As Provided
ISSN: ISSN-0093-934X
Effects of Language Comprehension on Visual Processing--MEG Dissociates Early Perceptual and Late N400 Effects
Hirschfeld, Gerrit; Zwitserlood, Pienie; Dobel, Christian
Brain and Language, v116 n2 p91-96 Feb 2011
We investigated whether and when information conveyed by spoken language impacts on the processing of visually presented objects. In contrast to traditional views, grounded-cognition posits direct links between language comprehension and perceptual processing. We used a magnetoencephalographic cross-modal priming paradigm to disentangle these views. In a sentence-picture verification task, pictures (e.g. of a flying duck) were paired with three sentence conditions: A feature-matching sentence about a duck in the air, a feature-mismatching sentence about a duck in a lake, and an unrelated sentence. Brain responses to pictures showed enhanced activity in the N400 time-window for the unrelated compared to both related conditions in the left temporal lobe. The M1 time-window revealed more activation for the feature-matching than for the other two conditions in the occipital cortex. These dissociable effects on early visual processing and semantic integration support models in which language comprehension engages two complementary systems, a perceptual and an abstract one. (Contains 2 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A