2015 Fiscal Year Final Research Report
Understanding of the neural dynamics for speech movement by focusing on the speech dysfluency
| Project/Area Number |
24650138
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Cognitive science
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| Research Institution | Gunma University (2013-2015)
Tokyo Denki University (2012) |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | 吃音 / 発話流暢性 / 聴覚フィードバック / 下肢運動 / 脳計測 |
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| Outline of Final Research Achievements |
Stuttering is a disorder of speech fluency, and its etiology and cure are still unclear. This study investigated the nature of the auditory feedback by using an experimental paradigm where participants were required to learn vocalization to track a target by observing own speech parameters. After they learned the tracking, the transformed auditory feedback was applied and they were required to relearn the new vocalization again. We developed MRI-compatible device for lower limb movement, for investigating the common neural substrates between the speech production and the lower limb movement. The motivation of this study was that the regions involved in stuttering are not necessarily specific to the speech production. We examined the relationship between the fluctuation of the lower limb and the neural activity. The result suggested that the cortical motor areas were involved in the volitional control, whereas the subcortical areas for locomotion were involved in the automatic process.
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| Free Research Field |
神経科学
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