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Semantic additivity and semantic inhibition: dissociable processes in the cerebral hemispheres?
Brain Lang. 1992 Jan; 42(1):52-76.BL

Abstract

We report the results of two visual half-field semantic priming experiments using a high proportion of related trials to examine hemisphere asymmetries for semantic processes beyond those attributable to automatic meaning activation. Contrary to previous investigations, we obtained inhibition for unrelated trials in both visual fields. However, priming was additive (being greater for words related via category membership and association than for either single dimension) only when words were presented to the RVF/left hemisphere. A third experiment, using centrally presented stimuli, implied that semantic additivity should be attributed to post-access meaning comparisons and inhibition to the generation of semantic expectancies. These results suggest (1) that inhibition and additivity are potentially dissociable "controlled" semantic processes and (2) that the left hemisphere predominates for meaning integration across successively presented words. The availability of finely tuned meaning integration processes in the left hemisphere may contribute to its superiority in language processing, despite right hemisphere competence for some semantic operations.

Authors+Show Affiliations

Chiarello C
Department of Psychology, Syracuse University, NY 13244-2340.
Richards L
No affiliation info available
Pollock A
No affiliation info available

MeSH

AdultAttentionDominance, CerebralFemaleHumansMaleMental RecallNeural InhibitionPaired-Associate LearningPsycholinguisticsReaction TimeReadingSemanticsSpeech Perception

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

1547469

Citation

Chiarello, C, et al. "Semantic Additivity and Semantic Inhibition: Dissociable Processes in the Cerebral Hemispheres?" Brain and Language, vol. 42, no. 1, 1992, pp. 52-76.
Chiarello C, Richards L, Pollock A. Semantic additivity and semantic inhibition: dissociable processes in the cerebral hemispheres? Brain Lang. 1992;42(1):52-76.
Chiarello, C., Richards, L., & Pollock, A. (1992). Semantic additivity and semantic inhibition: dissociable processes in the cerebral hemispheres? Brain and Language, 42(1), 52-76.
Chiarello C, Richards L, Pollock A. Semantic Additivity and Semantic Inhibition: Dissociable Processes in the Cerebral Hemispheres. Brain Lang. 1992;42(1):52-76. PubMed PMID: 1547469.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Semantic additivity and semantic inhibition: dissociable processes in the cerebral hemispheres? AU - Chiarello,C, AU - Richards,L, AU - Pollock,A, PY - 1992/1/1/pubmed PY - 1992/1/1/medline PY - 1992/1/1/entrez SP - 52 EP - 76 JF - Brain and language JO - Brain Lang VL - 42 IS - 1 N2 - We report the results of two visual half-field semantic priming experiments using a high proportion of related trials to examine hemisphere asymmetries for semantic processes beyond those attributable to automatic meaning activation. Contrary to previous investigations, we obtained inhibition for unrelated trials in both visual fields. However, priming was additive (being greater for words related via category membership and association than for either single dimension) only when words were presented to the RVF/left hemisphere. A third experiment, using centrally presented stimuli, implied that semantic additivity should be attributed to post-access meaning comparisons and inhibition to the generation of semantic expectancies. These results suggest (1) that inhibition and additivity are potentially dissociable "controlled" semantic processes and (2) that the left hemisphere predominates for meaning integration across successively presented words. The availability of finely tuned meaning integration processes in the left hemisphere may contribute to its superiority in language processing, despite right hemisphere competence for some semantic operations. SN - 0093-934X UR - https://www.unboundmedicine.com/medline/citation/1547469/Semantic_additivity_and_semantic_inhibition:_dissociable_processes_in_the_cerebral_hemispheres DB - PRIME DP - Unbound Medicine ER -