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Titolo:
Stages of functional processing and the bihemispheric recognition of Japanese Kana script
Autore:
Yoshizaki, K;
Indirizzi:
Aichi Shukutoka Univ, Dept Commun Sci, Nagakute, Aichi 4801197, Japan Aichi Shukutoka Univ Nagakute Aichi Japan 4801197 e, Aichi 4801197, Japan
Titolo Testata:
LATERALITY
fascicolo: 2, volume: 5, anno: 2000,
pagine: 155 - 166
SICI:
1357-650X(200004)5:2<155:SOFPAT>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTERHEMISPHERIC INTERACTION; CEREBRAL HEMISPHERES; TASK; INTEGRATION; ADVANTAGE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Yoshizaki, K Aichi Shukutoka Univ, Dept Commun Sci, 9 Katahira Nagakute, Nagakute, Aichi 4801197, Japan Aichi Shukutoka Univ 9 Katahira Nagakute Nagakute Aichi Japan 4801197
Citazione:
K. Yoshizaki, "Stages of functional processing and the bihemispheric recognition of Japanese Kana script", LATERALITY, 5(2), 2000, pp. 155-166

Abstract

Two experiments were carried out in order to examine the effects of functional steps on the benefits of interhemispheric integration. The purpose of Experiment 1 was to investigate the validity of the Banich (1995a) model, where the benefits of interhemispheric processing increase as the task involves more functional steps. The 16 right-handed subjects were given two types of Hiragana-Katakana script matching tasks. One was the Name Identity (NI) task, and the other was the vowel matching (VM) task, which involved morefunctional steps compared to the NI task. The VM task required subjects tomake a decision whether or not a pair of Katakana-Hiragana scripts had a common vowel. In both tasks, a pair of Kana scripts (Katakana-Hiragana scripts) was tachistoscopically presented in the unilateral visual fields or thebilateral visual fields, where each letter was presented in each visual field. A bilateral visual fields advantage (BFA) was found in both tasks, andthe size of this did not differ between the tasks, suggesting that these findings did not support the Banich model. The purpose of Experiment 2 was to examine the effects of imbalanced processing load between the hemisphereson the benefits of interhemispheric integration. In order to manipulate the balance of processing load across the hemispheres, the revised vowel matching (r-VM) task was developed by amending the VM task. The r-VM task was the same as the VM task in Experiment I, except that a script that has only vowel sound was presented as a counterpart of a pair of Kana scripts. The 24 right-handed subjects were given the r-VM and NI tasks. The results showed that although a BFA showed up in the NI task, it did not in the r-VM task. These results suggested that the balance of processing load between hemispheres would have an influence on the bilateral hemispheric processing.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 16:09:56