Word Type Frequency Alone Can Modulate Hemispheric Asymmetry in Visual Word Recognition: Evidence from Modeling Chinese Character Recognition

In Chinese orthography, a dominant structure exists in which a semantic radical appears on the left and a phonetic radical on the right (SP characters); the minority, opposite arrangement also exists (PS characters). Recent studies showed that SP character processing is more left hemisphere (LH) lat...

Full description

Bibliographic Details
Main Authors: Janet H. Hsiao, Kit Cheung
Format: Article
Language:English
Published: SAGE Publishing 2011-05-01
Series:i-Perception
Online Access:https://doi.org/10.1068/ic343
_version_ 1818256140400590848
author Janet H. Hsiao
Kit Cheung
author_facet Janet H. Hsiao
Kit Cheung
author_sort Janet H. Hsiao
collection DOAJ
description In Chinese orthography, a dominant structure exists in which a semantic radical appears on the left and a phonetic radical on the right (SP characters); the minority, opposite arrangement also exists (PS characters). Recent studies showed that SP character processing is more left hemisphere (LH) lateralized than PS character processing; nevertheless, it remains unclear whether this is due to phonetic radical position or character type frequency. Through computational modeling with artificial lexicons, in which we implement a theory of hemispheric asymmetry in perception that posits differential frequency bias in the two hemispheres (i.e., the DFF theory; Ivry & Robertson, 1998), but do not assume phonological processing being LH lateralized, we show that although phonetic radical position, visual complexity of the radicals, and character information structure may all modulate lateralization effects, the difference in character type frequency alone is sufficient to exhibit the effect that the dominant type has a stronger LH lateralization than the minority type. Further analysis suggests that this effect is due to higher visual similarity among characters in the dominant type as compared with those in the minority type. This result demonstrates that word type frequency alone can modulate hemispheric lateralization effects in visual word recognition.
first_indexed 2024-12-12T17:23:01Z
format Article
id doaj.art-f49fbec7c7a64a2b813194e4a026569d
institution Directory Open Access Journal
issn 2041-6695
language English
last_indexed 2024-12-12T17:23:01Z
publishDate 2011-05-01
publisher SAGE Publishing
record_format Article
series i-Perception
spelling doaj.art-f49fbec7c7a64a2b813194e4a026569d2022-12-22T00:17:35ZengSAGE Publishingi-Perception2041-66952011-05-01210.1068/ic34310.1068_ic343Word Type Frequency Alone Can Modulate Hemispheric Asymmetry in Visual Word Recognition: Evidence from Modeling Chinese Character RecognitionJanet H. Hsiao0Kit Cheung1Department of Psychology, University of Hong KongDepartment of Psychology, University of Hong KongIn Chinese orthography, a dominant structure exists in which a semantic radical appears on the left and a phonetic radical on the right (SP characters); the minority, opposite arrangement also exists (PS characters). Recent studies showed that SP character processing is more left hemisphere (LH) lateralized than PS character processing; nevertheless, it remains unclear whether this is due to phonetic radical position or character type frequency. Through computational modeling with artificial lexicons, in which we implement a theory of hemispheric asymmetry in perception that posits differential frequency bias in the two hemispheres (i.e., the DFF theory; Ivry & Robertson, 1998), but do not assume phonological processing being LH lateralized, we show that although phonetic radical position, visual complexity of the radicals, and character information structure may all modulate lateralization effects, the difference in character type frequency alone is sufficient to exhibit the effect that the dominant type has a stronger LH lateralization than the minority type. Further analysis suggests that this effect is due to higher visual similarity among characters in the dominant type as compared with those in the minority type. This result demonstrates that word type frequency alone can modulate hemispheric lateralization effects in visual word recognition.https://doi.org/10.1068/ic343
spellingShingle Janet H. Hsiao
Kit Cheung
Word Type Frequency Alone Can Modulate Hemispheric Asymmetry in Visual Word Recognition: Evidence from Modeling Chinese Character Recognition
i-Perception
title Word Type Frequency Alone Can Modulate Hemispheric Asymmetry in Visual Word Recognition: Evidence from Modeling Chinese Character Recognition
title_full Word Type Frequency Alone Can Modulate Hemispheric Asymmetry in Visual Word Recognition: Evidence from Modeling Chinese Character Recognition
title_fullStr Word Type Frequency Alone Can Modulate Hemispheric Asymmetry in Visual Word Recognition: Evidence from Modeling Chinese Character Recognition
title_full_unstemmed Word Type Frequency Alone Can Modulate Hemispheric Asymmetry in Visual Word Recognition: Evidence from Modeling Chinese Character Recognition
title_short Word Type Frequency Alone Can Modulate Hemispheric Asymmetry in Visual Word Recognition: Evidence from Modeling Chinese Character Recognition
title_sort word type frequency alone can modulate hemispheric asymmetry in visual word recognition evidence from modeling chinese character recognition
url https://doi.org/10.1068/ic343
work_keys_str_mv AT janethhsiao wordtypefrequencyalonecanmodulatehemisphericasymmetryinvisualwordrecognitionevidencefrommodelingchinesecharacterrecognition
AT kitcheung wordtypefrequencyalonecanmodulatehemisphericasymmetryinvisualwordrecognitionevidencefrommodelingchinesecharacterrecognition