Subcortical auditory feedback mechanisms in speech: Function and structure
言语中的皮层下听觉反馈机制:功能和结构
基本信息
- 批准号:9188910
- 负责人:
- 金额:$ 3.62万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2016
- 资助国家:美国
- 起止时间:2016-09-01 至 2018-08-31
- 项目状态:已结题
- 来源:
- 关键词:AccountingAffectAlgorithmsAnimalsApraxiasAttentionAuditoryAuditory Brain Stem ImplantsAuditory Brainstem ResponsesAuditory Perceptual DisordersAuditory areaAuditory systemAutistic DisorderBrainBrain StemBrain imagingCell NucleusChiropteraClinicalCochlear ImplantsCochlear NerveCochlear nucleusCommunication impairmentComplexDataDevelopmentDevelopmental StutteringDevelopmental apraxiaDiffusionDiffusion Magnetic Resonance ImagingDiseaseEarEffectivenessEfferent NeuronsElectroencephalographyFeedbackFiberFunctional Magnetic Resonance ImagingFutureGeniculate body structureHearingHearing problemHumanImaging DeviceImaging TechniquesImplantIndividualInferiorInferior ColliculusInvestigationLabyrinthLinguisticsLocationMeasuresMedialMental disordersMethodsMidbrain structureMotorNeuronsNoiseOrganParticipantPathway interactionsPeripheralProcessProductionPulvinar structureReportingResearchResolutionRoleSchizophreniaSensorySensory ProcessSignal TransductionSpecificitySpeechSpeech DisordersSpeech SoundStimulusStructureStutteringTechniquesTestingThalamic NucleiThalamic structureTinnitusTrainingVoiceabstractinganatomical tracingattenuationauditory feedbackauditory pathwaybaseconnectomeeffective therapyin vivoinnovationinsightmotor controlmotor disordernovelnovel therapeuticspreventrelating to nervous systemresearch studyresponsesoundvocalization
项目摘要
Project Summary/Abstract
When we produce speech, the auditory system reduces its response to what it expects to hear based on the
motor plan. This allows the auditory system to remain vigilant of externally produced sounds while also
enabling it to detect errors between the expected and actual produced sounds. Disruption of this auditory
feedback mechanism during speech production has been implicated in speech disorders like persistent
developmental stuttering and apraxia of speech as well as in mental health disorders like autism and
schizophrenia. Previous research has suggested that much, but not all, of the auditory feedback comparison is
performed in auditory cortex. Other auditory feedback processing is likely performed by earlier subcortical
auditory structures, but the precise mechanisms and locations of this processing has not been explicitly
investigated. In this project, I propose three aims for investigating the structure and function of subcortical
auditory structures in auditory feedback processing. Aim 1 is to demonstrate the contribution of
subcortical auditory structures to general motorinduced suppression. Using two complementary brain
imaging techniques, we will test whether generating a sound by pressing a button results in decreased auditory
subcortical activity when compared to passive listening of those sounds. Aim 2 is to test speechspecific
subcortical auditory modulation by examining subcortical activity during speech formant feedback
perturbation. In this experiment, we will alter how participants hear themselves while they speak. Using
highresolution functional brain imaging, we will be able to see if differences between expected and actual
speech feedback cause more activity in subcortical auditory structures. Aim 3 is to describe the structural
connectivity between auditory structures and the auditory periphery using highsensitivity
diffusionweighted imaging. This brain imaging technique allows us to infer how neuron bundles are
physically connected in the brain and extending out to the ear. Using existing data from a powerful new
imaging device, we will examine neural connections between specific auditory and motor structures in greater
detail than have been investigated before. We will also develop a new method to track the cochlear nerve from
the brainstem to the ear in order to help clinicians determine the best hearing implant for hearingimpaired
individuals. Overall, this project will provide high resolution brain imaging of subcortical auditory structures and
their role in comparing expected to actual selfgenerated sounds. Our results will help us understand how
faulty connections can contribute to speech and mental health disorders and will enable the development of
more effective therapies for such disorders in the future.
项目概要/摘要
当我们发出语音时,听觉系统会根据所期望听到的内容减少其反应
运动计划。这使得听觉系统能够对外部产生的声音保持警惕,同时也
使其能够检测预期声音和实际产生的声音之间的错误。
言语产生过程中的反馈机制与持续性言语障碍有关
发育性口吃和言语失用以及自闭症和精神健康障碍
先前的研究表明,大部分(但不是全部)听觉反馈比较是与精神分裂症相关的。
在听觉皮层中执行。其他听觉反馈处理可能是由早期皮层下执行的
听觉结构,但这种处理的精确机制和位置尚未明确
在这个项目中,我提出了研究皮质下结构和功能的三个目标。
听觉结构在听觉反馈处理中的贡献。
使用两个互补的大脑来抑制皮质下听觉结构。
成像技术,我们将测试按下按钮产生声音是否会导致听力下降
与被动聆听这些声音相比,皮层下活动的目标 2 是测试特定语音。
通过在语音共振峰反馈期间检查皮层下活动来进行皮层下听觉调制
在这个实验中,我们将改变参与者在说话时听到自己的声音。
高分辨率功能性脑成像,我们将能够看到预期与实际之间是否存在差异
语音反馈引起皮层下听觉结构的更多活动,目标 3 是描述结构。
使用高灵敏度连接礼堂结构和礼堂外围
扩散加权成像。这种大脑成像技术使我们能够推断神经元束的情况
使用来自强大新功能的现有数据,在大脑中进行物理连接并延伸到耳朵。
成像设备,我们将更广泛地检查特定听觉和运动结构之间的神经连接
我们还将开发一种新的方法来跟踪耳蜗神经。
脑干到耳朵,以帮助临床医生确定针对听力障碍患者的最佳听力植入物
总体而言,该项目将提供皮层下听觉结构和的高分辨率大脑成像。
他们在比较预期的声音和实际的自我产生的声音方面所发挥的作用,我们的结果将帮助我们理解如何做到这一点。
错误的连接可能会导致言语和心理健康障碍,并会导致发展
未来对此类疾病有更有效的治疗方法。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Kevin Richard Sitek其他文献
Kevin Richard Sitek的其他文献
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{{ truncateString('Kevin Richard Sitek', 18)}}的其他基金
Investigating human non-lemniscal inferior colliculus contributions to auditory learning with 7T MRI
使用 7T MRI 研究人类非丘系下丘对听觉学习的贡献
- 批准号:
10928960 - 财政年份:2022
- 资助金额:
$ 3.62万 - 项目类别:
Investigating human non-lemniscal inferior colliculus contributions to auditory learning with 7T MRI
使用 7T MRI 研究人类非丘系下丘对听觉学习的贡献
- 批准号:
10371381 - 财政年份:2022
- 资助金额:
$ 3.62万 - 项目类别:
Subcortical auditory feedback mechanisms in speech: Function and structure
言语中的皮层下听觉反馈机制:功能和结构
- 批准号:
9260686 - 财政年份:2016
- 资助金额:
$ 3.62万 - 项目类别:
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