2011 Fiscal Year Final Research Report
Disturbed error monitoring of auditory processing in stuttering and neurorehabilitation
| Project/Area Number |
21791620
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Otorhinolaryngology
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| Research Institution | Kyushu University |
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Principal Investigator |
OGATA Katsuya 九州大学, 医学研究院, 助教 (50380613)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 吃音 / 脳磁図 / 周波数解析 / エラー訂正障害 |
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| Research Abstract |
People who stutter(PWS) can reduce their stuttering rates under masking noise and altered auditory feedback ; such a response can be attributed to altered auditory input, which suggests that abnormal speech processing in PWS results from abnormal processing of auditory input. In order to characterize such abnormalities, we examined the functional changes in the auditory cortices of PWS using a 306-channel magnetoencephalography system. PWS exhibited impaired left auditory sensory gating(P50m suppression). The tonotopic organization in the right hemisphere ofPWS is expanded compared with that of the controls. The functional connectivity between both hemispheres were shown to be higher when sound was processed in the right hemisphere of PWS.
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