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Examining Bilingual Language Control Using the Stroop Task
Published on: February 26, 2020
Language status and hemispheric involvement in reading: evidence from trilingual Arabic speakers tested in Arabic,
Raphiq Ibrahim1, Zohar Eviatar
1Learning Disabilities Department, University of Haifa, Haifa, Israel. raphiq@psy.haifa.ac.il
Abstract:
This study explores the effects of language status on hemispheric involvement in lexical decision. The authors looked at the responses of native Arabic speakers in Arabic (L1 for reading) and in two second languages (L2): Hebrew, which is similar to L1 in morphological structure, and English, which is very different from L1. Two groups of Arabic speakers performed lateralized lexical decision tasks in the three languages, using unilateral presentations and bilateral presentations. These paradigms allowed us to infer both hemispheric specialization and interhemispheric communication in the three languages, and the effects of language status (native vs. nonnative) and similarity on hemispheric patterns of responses. In general the authors show an effect of language status in the right visual field (RVF), reflecting the greater facility of the left hemisphere (LH) in recognizing words in the participant's native Arabic than in their other languages. The participants revealed similar patterns of interhemispheric integration across the languages, with more integration occurring for words than for nonwords. Both hemispheres revealed sensitivity to morphological complexity, a pattern similar to that of native Hebrew readers and different from that of native English readers.
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Lateralization
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Higher Mental Functions of the Brain: Language
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...

