TY - JOUR
T1 - A visual M170 effect of morphological complexity
AU - Zweig, Eytan
AU - Pylkkänen, Liina
N1 - Funding Information:
Correspondence should be addressed to Liina Pylkkänen, Department of Psychology, New York University, 6 Washington Place, New York, NY 10003, USA. E-mail: [email protected] This research was supported by the National Science Foundation grant BCS-0545186 and the New York University Challenge Fund Award (to LP). For help with data collection and analysis, we wish to thank Jesse Harris and Andrew Smart.
PY - 2009
Y1 - 2009
N2 - Recent masked priming studies on visual word recognition have suggested that morphological decomposition is performed prelexically, purely on the basis of the orthographic properties of the word form. Given this, one might expect morphological complexity to modulate early visual evoked activity in electromagnetic measures. We investigated the neural bases of morphological decomposition with magnetoencephalography (MEG). In two experiments, we manipulated morphological complexity in single word lexical decision without priming, once using suffixed words and once using prefixed words. We found that morphologically complex forms display larger amplitudes in the M170, the same component that has been implicated for letterstring and face effects in previous MEG studies. Although letterstring effects have been reported to be left-lateral, we found a right-lateral effect of morphological complexity, suggesting that both hemispheres may be involved in early analysis of word forms.
AB - Recent masked priming studies on visual word recognition have suggested that morphological decomposition is performed prelexically, purely on the basis of the orthographic properties of the word form. Given this, one might expect morphological complexity to modulate early visual evoked activity in electromagnetic measures. We investigated the neural bases of morphological decomposition with magnetoencephalography (MEG). In two experiments, we manipulated morphological complexity in single word lexical decision without priming, once using suffixed words and once using prefixed words. We found that morphologically complex forms display larger amplitudes in the M170, the same component that has been implicated for letterstring and face effects in previous MEG studies. Although letterstring effects have been reported to be left-lateral, we found a right-lateral effect of morphological complexity, suggesting that both hemispheres may be involved in early analysis of word forms.
KW - Lexicon
KW - M170
KW - MEG
KW - Morphological decomposition
UR - http://www.scopus.com/inward/record.url?scp=62149103950&partnerID=8YFLogxK
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U2 - 10.1080/01690960802180420
DO - 10.1080/01690960802180420
M3 - Article
AN - SCOPUS:62149103950
SN - 0169-0965
VL - 24
SP - 412
EP - 439
JO - Language and Cognitive Processes
JF - Language and Cognitive Processes
IS - 3
ER -