Abstract：
:While skilled readers produce an increased and left-lateralized event-related-potential (ERP) component, known as N170, for strings of letters compared to strings of less familiar units, it remains unclear whether perceptual familiarity plays an important role in driving the increased and left-lateralized N170 for print. The present study addressed this issue by examining N170 responses for regular Chinese characters and cursive Chinese characters which are visually less familiar regarding their form, yet with phonological and semantic properties. Stroke combinations, which are with unfamiliar visual form and without phonological or semantic properties, were used as low-level control stimuli. Twenty college students (22.6 ± 1.2 years) were examined. A content-irrelevant color matching task was used to control for differences of attention load across familiar and unfamiliar stimuli. A left-lateralized N170 was evoked only by regular characters, but not by cursive characters or stroke combinations. Moreover, cursive characters, which are principally readable but visually unfamiliar, produced a lower N170 than regular characters, and no N170 difference was found compared with stroke combinations. These results suggest that visual form familiarity serves as an important driver for the increased and left-lateralized N170 response.
journal_name
Neuropsychologiajournal_title
Neuropsychologiaauthors
Xue L,Maurer U,Weng X,Zhao Jdoi
10.1016/j.neuropsychologia.2019.107194subject
Has Abstractpub_date
2019-11-01 00:00:00pages
107194eissn
0028-3932issn
1873-3514pii
S0028-3932(19)30236-2journal_volume
134pub_type
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