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Controlled semantic processes within and between the two cerebral hemispheres.
Laterality. 2017 Jan; 22(1):1-16.L

Abstract

To test the separate and combined abilities of the two cerebral hemispheres to perform controlled semantic selection and integration processes, Hebrew readers saw pairs of words and had to decide whether the two words were semantically related. The first word in each pair was presented centrally. The second word was presented in the left, right, or central visual field (LVF, RVF, and CVF). We compared response latencies for related pairs in two conditions: In the ambiguous condition, the first word was a homograph (either homophonic or heterophonic) and the second word was related to either its dominant or subordinate meaning. In the unambiguous condition, homographs were replaced with unambiguous control words. Irrespective of VF or homograph type, response times for ambiguous pairs were significantly longer than for unambiguous pairs only when targets were related to the subordinate meaning of the homograph. In the left hemisphere (RVF/LH), this ambiguity effect was larger for heterophones than for homophones, whereas in the right hemisphere (LVF/RH), similar patterns were observed for both types of homographs. Finally, performance patterns in the CVF revealed the same patterns as those in the RVF/LH, and were different from those in the LVF/RH. The implications of these results are discussed.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Peleg O
a The Program of Cognitive Studies of Language Use & Sagol School of Neuroscience , Tel-Aviv University , Tel-Aviv , Israel.
Eviatar Z
b Department of Psychology & Institute of Information Processing and Decision Making , Haifa University , Haifa , Israel.

MeSH

AdultCerebrumFemaleFunctional LateralityHumansLanguage TestsMaleNeuropsychological TestsPattern Recognition, VisualPhoneticsReaction TimeReadingSemantics

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26452985

Citation

Peleg, Orna, and Zohar Eviatar. "Controlled Semantic Processes Within and Between the Two Cerebral Hemispheres." Laterality, vol. 22, no. 1, 2017, pp. 1-16.
Peleg O, Eviatar Z. Controlled semantic processes within and between the two cerebral hemispheres. Laterality. 2017;22(1):1-16.
Peleg, O., & Eviatar, Z. (2017). Controlled semantic processes within and between the two cerebral hemispheres. Laterality, 22(1), 1-16. https://doi.org/10.1080/1357650X.2015.1092547
Peleg O, Eviatar Z. Controlled Semantic Processes Within and Between the Two Cerebral Hemispheres. Laterality. 2017;22(1):1-16. PubMed PMID: 26452985.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Controlled semantic processes within and between the two cerebral hemispheres. AU - Peleg,Orna, AU - Eviatar,Zohar, Y1 - 2015/10/09/ PY - 2015/10/11/pubmed PY - 2017/2/6/medline PY - 2015/10/11/entrez KW - Hemisphere KW - ambiguity resolution KW - language KW - reading SP - 1 EP - 16 JF - Laterality JO - Laterality VL - 22 IS - 1 N2 - To test the separate and combined abilities of the two cerebral hemispheres to perform controlled semantic selection and integration processes, Hebrew readers saw pairs of words and had to decide whether the two words were semantically related. The first word in each pair was presented centrally. The second word was presented in the left, right, or central visual field (LVF, RVF, and CVF). We compared response latencies for related pairs in two conditions: In the ambiguous condition, the first word was a homograph (either homophonic or heterophonic) and the second word was related to either its dominant or subordinate meaning. In the unambiguous condition, homographs were replaced with unambiguous control words. Irrespective of VF or homograph type, response times for ambiguous pairs were significantly longer than for unambiguous pairs only when targets were related to the subordinate meaning of the homograph. In the left hemisphere (RVF/LH), this ambiguity effect was larger for heterophones than for homophones, whereas in the right hemisphere (LVF/RH), similar patterns were observed for both types of homographs. Finally, performance patterns in the CVF revealed the same patterns as those in the RVF/LH, and were different from those in the LVF/RH. The implications of these results are discussed. SN - 1464-0678 UR - https://www.unboundmedicine.com/medline/citation/26452985/Controlled_semantic_processes_within_and_between_the_two_cerebral_hemispheres_ DB - PRIME DP - Unbound Medicine ER -