Tuning of the human left fusiform gyrus to sublexical orthographic structure.

Tuning of the human left fusiform gyrus to sublexical orthographic structure. Research Abstract Details 

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Tuning of the human left fusiform gyrus to sublexical orthographic structure. Abstract Text:

Jeffrey R Binder,David A Medler,Chris F Westbury,Einat Liebenthal,Lori Buchanan,

Neuropsychological and neurophysiological evidence point to a role for the left fusiform gyrus in visual word recognition, but the specific nature of this role remains a topic of debate. The aim of this study was to measure the sensitivity of this region to sublexical orthographic structure. We measured blood oxygenation (BOLD) changes in the brain with functional magnetic resonance imaging while fluent readers of English viewed meaningless letter strings. The stimuli varied systematically in their approximation to English orthography, as measured by the probability of occurrence of letters and sequential letter pairs (bigrams) comprising the string. A whole-brain analysis showed a single region in the lateral left fusiform gyrus where BOLD signal increased with letter sequence probability; no other brain region showed this response pattern. The results suggest tuning of this cortical area to letter probabilities as a result of perceptual experience and provide a possible neural correlate for the 'word superiority effect' observed in letter perception research.

Tuning of the human left fusiform gyrus to sublexical orthographic structure. Publishing Authors By Initials

JR Binder,DA Medler,CF Westbury,E Liebenthal,L Buchanan,

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Tuning of the human left fusiform gyrus to sublexical orthographic structure. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: NeuroImage

VOLUME: 33

Page Numbers: 739-48

Journal Abbreviation: Neuroimage

ISSN: 1053-8119

DAY: 7

MONTH: 09

YEAR: 2006

Tuning of the human left fusiform gyrus to sublexical orthographic structure. Information

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LANGUAGE: eng

NlmUniqueID: 9215515

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KEYWORDS: Reference Values

MESH TERMS: blood

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Substance Name: Oxygen

Registry Number: 7782-44-7

Grant and Affiliation Information for Tuning of the human left fusiform gyrus to sublexical orthographic structure.

AFFILIATION: Department of Neurology, Medical College of Wisconsin, 9200 W. Wisconsin Ave., Milwaukee, WI 53226, USA. jbinder@mcw.edu

Country: United States

AGENCY: United States NINDS

GRANT: R01 NS33576

ACRONYM: NS

MEDLINETA: Neuroimage

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