Probabilistic orthographic cues to grammatical category in the brain

Arciuli, Joanne, McMahon, Katie and de Zubicaray, Greig (2012) Probabilistic orthographic cues to grammatical category in the brain. Brain and language, 123 3: 202-210. doi:10.1016/j.bandl.2012.09.009

Author Arciuli, Joanne
McMahon, Katie
de Zubicaray, Greig
Title Probabilistic orthographic cues to grammatical category in the brain
Journal name Brain and language   Check publisher's open access policy
ISSN 0093-934X
Publication date 2012-12
Year available 2012
Sub-type Article (original research)
DOI 10.1016/j.bandl.2012.09.009
Volume 123
Issue 3
Start page 202
End page 210
Total pages 9
Place of publication Maryland Heights, MO, United States
Publisher Academic Press
Collection year 2013
Language eng
Abstract What helps us determine whether a word is a noun or a verb, without conscious awareness? We report on cues in the way individual English words are spelled, and, for the first time, identify their neural correlates via functional magnetic resonance imaging (fMRI). We used a lexical decision task with trisyllabic nouns and verbs containing orthographic cues that are either consistent or inconsistent with the spelling patterns of words from that grammatical category. Significant linear increases in response times and error rates were observed as orthography became less consistent, paralleled by significant linear decreases in blood oxygen level dependent (BOLD) signal in the left supramarginal gyrus of the left inferior parietal lobule, a brain region implicated in visual word recognition. A similar pattern was observed in the left superior parietal lobule. These findings align with an emergentist view of grammatical category processing which results from sensitivity to multiple probabilistic cues.
Keyword Probabilistic cues
Grammatical category
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online: 29 October 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Psychology Publications
Centre for Advanced Imaging Publications
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Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
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Created: Tue, 13 Nov 2012, 11:06:13 EST by Sandrine Ducrot on behalf of Centre for Advanced Imaging