Attention-dependent neural oscillations in the human olfactory system
人类嗅觉系统中注意力依赖性神经振荡
基本信息
- 批准号:9249540
- 负责人:
- 金额:$ 23.92万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-12-01 至 2018-03-31
- 项目状态:已结题
- 来源:
- 关键词:AffectAlzheimer&aposs DiseaseAreaAttentionAttenuatedAuditoryBehavioralBrainBrain regionCaliforniaCerealsClinicalCodeComplexDataDevelopment PlansDirectoriesDiseaseElectric StimulationElectrocorticogramElectroencephalographyEpilepsyEvolutionExhibitsFrequenciesFunctional Magnetic Resonance ImagingGoalsHealth BenefitHospitalsHumanIncomeInstitutesIntractable EpilepsyLightLinkMeasurementMeasuresMentorsModalityNasal cavityNeocortexNeurosciencesOdorsOlfactory PathwaysParkinson DiseasePathway interactionsPatientsPatternPerformancePostdoctoral FellowProtocols documentationPsychophysicsReaction TimeResearchResearch PersonnelResearch Project GrantsRoleScalp structureSchizophreniaSensorySignal TransductionSleepSleep Apnea SyndromesSlow-Wave SleepSmell PerceptionSpeedStimulusStructureSurfaceTechniquesTestingThalamic structureTrainingUniversitiesVisualWorkbrain surgerycareercareer developmentexperimental studygraduate studentinsightmillisecondnervous system disorderneural correlateneuromechanismnovelolfactory bulbpiriform cortexpreventrelating to nervous systemrespiratoryresponsesensory gatingsensory systemsomatosensoryspatiotemporalvirtual
项目摘要
PROJECT SUMMARY
A career development plan is proposed for Dr. Christina Zelano, who is committed to a research career
studying the neural substrates of the human olfactory system. Dr. Jay Gottfried, a renowned scholar in the field
of human olfaction at Northwestern University will function as the primary mentor. Furthermore, Dr. Stephan
Schuele, Directory of the Comprehensive Epilepsy Center at Northwestern Memorial Hospital will contribute to
the proposed research as a collaborator, and Dr. Robert Knight, Director of the Helen Wills Neuroscience
Institute at University of California, Berkeley will contribute as a consultant on the proposed research projects.
Training will involve electrocorticography (ECoG) and electrical stimulation techniques for the measurement of
odorevoked brain activity in patients who are undergoing brain surgery for epilepsy. The overall goal of the
proposed research is to characterize the temporal evolution and frequency composition of olfactory attentional
neural correlates in the human brain. Because olfactory brain structures are located deep within the limbic
temporal and frontal portions of the brain, the electrical signals generated from these regions are severely
attenuated at the scalp, limiting the value of surface EEG in measuring olfactory local field potentials. To
overcome this problem, the proposed research will optimize an olfactory (ECoG) paradigm in which electrical
signals are recorded directly from olfactory brain structures in patients who are undergoing brain surgery for
intractable epilepsy. Using this technique, the precise timing and frequency of olfactory attentional oscillations
will be investigated. Several aspects of olfactory attention will be explored, from basic (statedependent gating
of incoming odor information) to more complex (modality specific) mechanisms. Given the lack of a requisite
precortical thalamic relay in the olfactory system, the proposed research will test the hypothesis that sensory
gating of olfactory information occurs at the level of the olfactory bulb, upstream from olfactory (piriform) cortex.
Olfactory sensory gating will be explored through two separate experiments making use of ECoG and fMRI
techniques. The proposed research will use ECoG approaches to test two specific hypotheses regarding
complex forms of olfactory attention. First, experiments are proposed to determine the spatiotemporal
composition of neural oscillatory responses in relation to modalityspecific olfactory attentional mechanisms.
Second, experiments are proposed to determine the neural origins and spectrotemporal patterns of olfactory
predictive coding mechanisms. Further studies will make use of electrical stimulation techniques to establish
the necessity of identified brain regions in the formation of predictive spectrotemporal odor templates. The
proposed research has applications to a broad range of neurological disorders that present with olfactory
deficits, including Alzheimer’s disease, epilepsy, Parkinson’s disease and schizophrenia.
项目摘要
为致力于研究事业的克里斯蒂娜·泽拉诺博士提出了职业发展计划
研究人类嗅觉系统的神经基质。 Jay Gottfried 博士,该领域的著名学者
西北大学人类嗅觉研究中心将担任主要导师。 此外,斯蒂芬博士
西北纪念医院综合癫痫中心主任 Schuele 将致力于
作为合作者提出的研究,以及海伦·威尔斯神经科学中心主任罗伯特·奈特博士
加州大学伯克利分校研究所将作为顾问为拟议的研究项目做出贡献。
培训将涉及皮层电图描记术 (ECoG) 和电刺激技术,用于测量
正在接受癫痫脑部手术的患者的气味诱发的大脑活动。 总体目标
拟议的研究是表征嗅觉注意力的时间演变和频率组成
人类大脑中的神经关联。 因为嗅觉大脑结构位于边缘系统深处
大脑的颞叶和额叶部分,从这些区域产生的电信号受到严重影响
在头皮处衰减,限制了表面脑电图在测量嗅觉局部场电位方面的价值。 到
为了克服这个问题,拟议的研究将优化嗅觉(ECoG)范式,其中电
直接从正在接受脑部手术的患者的嗅觉大脑结构记录信号
顽固性癫痫。 使用这种技术,嗅觉注意力振荡的精确时间和频率
将受到调查。 将探索嗅觉注意力的几个方面,从基本的(状态依赖的门控)
传入的气味信息)到更复杂的(特定模式)机制。 鉴于缺乏必要条件
嗅觉系统中的皮质前丘脑中继,拟议的研究将测试感官的假设
嗅觉信息的门控发生在嗅球水平,位于嗅觉(梨状)皮层的上游。
嗅觉感觉门控将通过两个独立的实验利用 ECoG 和 fMRI 进行探索
技术。 拟议的研究将使用 ECoG 方法来测试关于以下方面的两个具体假设:
嗅觉注意力的复杂形式。 首先,建议进行实验以确定时空
与特定形态的嗅觉注意机制相关的神经振荡反应的组成。
其次,建议进行实验来确定嗅觉的神经起源和光谱时间模式
预测编码机制。 进一步的研究将利用电刺激技术来建立
识别大脑区域在形成预测光谱时间气味模板中的必要性。 这
拟议的研究可应用于广泛的伴有嗅觉的神经系统疾病
缺陷,包括阿尔茨海默病、癫痫、帕金森病和精神分裂症。
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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Christina Maria Zelano其他文献
Christina Maria Zelano的其他文献
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{{ truncateString('Christina Maria Zelano', 18)}}的其他基金
Characterizing the primary olfactory subregions of the human amygdala
表征人类杏仁核的主要嗅觉分区
- 批准号:
10594449 - 财政年份:2021
- 资助金额:
$ 23.92万 - 项目类别:
The function of respiratory-linked local field potential oscillations in human olfactory and limbic brain regions
人类嗅觉和边缘脑区域与呼吸相关的局部场电位振荡的功能
- 批准号:
9913507 - 财政年份:2018
- 资助金额:
$ 23.92万 - 项目类别:
The function of respiratory-linked local field potential oscillations in human olfactory and limbic brain regions
人类嗅觉和边缘脑区域与呼吸相关的局部场电位振荡的功能
- 批准号:
10391438 - 财政年份:2018
- 资助金额:
$ 23.92万 - 项目类别:
Principles of olfactory reward processing in the human brain
人脑嗅觉奖励处理原理
- 批准号:
10202273 - 财政年份:2016
- 资助金额:
$ 23.92万 - 项目类别:
Principles of olfactory reward processing in the human brain
人脑嗅觉奖励处理原理
- 批准号:
10410495 - 财政年份:2016
- 资助金额:
$ 23.92万 - 项目类别:
Attention-dependent neural oscillations in the human olfactory system
人类嗅觉系统中注意力依赖性神经振荡
- 批准号:
8425886 - 财政年份:2012
- 资助金额:
$ 23.92万 - 项目类别:
The role of the thalamus in human olfactory processing
丘脑在人类嗅觉处理中的作用
- 批准号:
8246498 - 财政年份:2010
- 资助金额:
$ 23.92万 - 项目类别:
The role of the thalamus in human olfactory processing
丘脑在人类嗅觉处理中的作用
- 批准号:
8003504 - 财政年份:2010
- 资助金额:
$ 23.92万 - 项目类别:
The role of the thalamus in human olfactory processing
丘脑在人类嗅觉处理中的作用
- 批准号:
8054772 - 财政年份:2010
- 资助金额:
$ 23.92万 - 项目类别:














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