title: The temporal and spatial features of segmental and suprasegmental encoding during implicit picture naming: an event-related potential study.
abstract: This study investigated the temporal and spatial features of segmental and suprasegmental encoding within a syllable in Chinese speech production using an internal monitoring task. Native Chinese speakers viewed a series of pictures and made go/nogo decisions along dimensions of initial consonant, central vowel, or tone information of picture names. Behavioral data and the N200 indicated that initial consonant information is available about 20-80 ms earlier than central vowel or tone information, whereas vowel and tone occur concurrently within a syllable during implicit picture naming. Moreover, source analyses (using sLORETA) indicated that initial consonant, tone and vowel encoding all resulted in predominantly left hemispheric but relatively dissociative neural brain activation. These findings indicated that segmental (consonants and vowels) and suprasegmental (tones) encoding proceeds in an incremental manner, and both run in parallel and independently in speech production in agreement with WEAVER++.
authors: Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, 4A Datun Road, Chaoyang District, Beijing 100101, China. zhangqf@psych.ac.cn
authors: Qingfang
authors: Q
authors: Zhang
authors: Xuebing
authors: X
authors: Zhu
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping; D003657:Decision Making / Q000502:physiology; D004569:Electroencephalography; D005260:Female; D006801:Humans; D008297:Male; D009275:Names; D009483:Neuropsychological Tests; D010364:Pattern Recognition, Visual / Q000502:physiology*; D010700:Phonetics; D010775:Photic Stimulation; D011930:Reaction Time; D013060:Speech; D013997:Time Factors; D055815:Young Adult