Task‐dependent laterality for cue decoding during spoken language processing
作者:
Satoshi Imaizumi,
Koichi Mori,
Shigeru Kiritani,
Hiroshi Hosoi,
Mitsuo Tonoike,
期刊:
NeuroReport
(OVID Available online 1998)
卷期:
Volume 9,
issue 5
页码: 899-903
ISSN:0959-4965
年代: 1998
出版商: OVID
关键词: Auditory cortex;Automatic process;Laterality;Left hemisphere;Magnetoencephalography (MEG);Phoneme;Prosody;Right hemisphere;Speech;Task-dependent schema
数据来源: OVID
摘要:
THE task-dependent laterality of the auditory cortices was investigated by measuring the magnetic fields elicited by three forms of a Japanese verb, which differed in terms of prosodic and phonetic cues. Significant task- dependent magnetic fields were found in both hemispheres during a prosody-related task, but only in the left during a phoneme-related task. The latency was similar to the mismatch negatively which reflects the neural activity of automatic cue decoding. These results suggest that task-dependent schemata are activated at least partially in parallel with automatic cue-decoding processes such that those in the left hemisphere process linguistic information irrespective of acoustic cues whereas those in the right hemisphere process prosodic information.
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