Reading different orthographies: an fMRI study of phrase reading in Hindi-English bilinguals

被引：18

作者：

Kumar, Uttam ^{[1
]}

Das, Tanusree ^{[1
]}

Bapi, Raju S. ^{[2
]}

Padakannaya, Prakash ^{[3
]}

Joshi, R. Malatesha ^{[4
]}

Singh, Nandini C. ^{[1
]}

机构：

[1] Natl Brain Res Ctr, Nainwal Mode 122050, Manesar, India

[2] Univ Hyderabad, Dept Comp & Informat Sci, Hyderabad 500046, Andhra Pradesh, India

[3] Univ Mysore, Dept Psychol, Mysore 570006, Karnataka, India

[4] Texas A&M Univ, Coll Educ Human Dev, College Stn, TX 77843 USA

来源：

READING AND WRITING | 2010年 / 23卷 / 02期

关键词：

Bilinguals; Devanagari; English; fMRI; Hindi; Orthography; Reading; LANGUAGE PROFICIENCY; PARIETAL CORTEX; BRAIN; 2ND-LANGUAGE; CHINESE; SPEECH; ACCOMMODATION; ACQUISITION; PERFORMANCE; MECHANISMS;

D O I：

10.1007/s11145-009-9176-8

中图分类号：

G40 [教育学];

学科分类号：

040101 ; 120403 ;

摘要：

The aim of the present study was to use functional imaging to compare cortical activations involved in reading Hindi and English that differ markedly in terms of their orthographies by a group of late bilinguals, more fluent in Hindi (L1) than English (L2). English is alphabetic and linear, in that vowels and consonants are arranged sequentially. In contrast, Hindi, written in Devanagari, is an alphasyllabary and non-linear writing system wherein vowels are placed around consonants making it a visually complex script. Additionally, the grapheme to phoneme mapping in English is opaque while Devanagari is transparent. Effects of reading fluency were seen in significantly slower reading times and direct English-Hindi comparison showed left putamen activation for the less fluent language (English). Direct Hindi-English orthography comparisons revealed activation in the temporal pole and caudate nucleus of the right hemisphere, cortical areas known to be involved in semantic and visual processing. We also find activation in right superior temporal gyrus, which we attribute to the syllabic rhythm of Hindi. Our results suggest increased visuo-spatial demands for processing Hindi as observed in other visually complex orthographies.

引用

页码：239 / 255

页数：17

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