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Christina Zelano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博士是该领域的著名学者,
西北大学的人类嗅觉专家将担任主要导师。此外,
Schuele,西北纪念医院综合癫痫中心的目录将有助于
作为一个合作者,和罗伯特·奈特博士,海伦·威尔斯神经科学主任,
研究所在加州大学伯克利分校将有助于作为一个顾问对拟议的研究项目。
培训将涉及皮质电图(ECoG)和电刺激技术,用于测量
在接受癫痫脑外科手术的患者中,气味刺激诱发脑活动。
提出的研究是表征嗅觉注意的时间演变和频率组成,
由于嗅觉脑结构位于边缘系统的深处,
在大脑的颞叶和额叶部分,从这些区域产生的电信号严重
在头皮衰减,限制了表面EEG在测量嗅觉局部场电位中的价值。
克服这个问题,拟议的研究将优化嗅觉(ECoG)范式,其中电
信号直接从接受脑部手术的患者的嗅觉脑结构记录下来,
顽固性癫痫。使用这项技术,精确的时间和频率的嗅觉注意振荡
嗅觉注意的几个方面将被探讨,从基本的(状态依赖性门控
传入的气味信息)到更复杂的(模态特定的)机制。 由于缺乏必要的
嗅觉系统中的前丘脑皮层中继,拟议的研究将测试这一假设,
嗅觉信息的门控发生在嗅觉(梨状)皮层上游的嗅球水平。
嗅觉感觉门控将通过两个独立的实验,利用皮层脑电图和功能磁共振成像探索
技术。拟议的研究将使用ECoG方法来测试两个具体的假设,
复杂形式的嗅觉注意。首先,实验提出,以确定时空
神经振荡反应的组成与特定嗅觉注意机制的关系。
第二,通过实验确定嗅觉的神经起源和频谱时间模式,
预测编码机制。进一步的研究将利用电刺激技术来建立
确定大脑区域在形成预测性光谱-时间气味模板中的必要性。
拟议的研究可应用于广泛的神经系统疾病,
这些疾病包括阿尔茨海默病、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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