Role of anterior olfactory nucleus for multi-sensory integration in the olfactory system
前嗅核在嗅觉系统多感觉整合中的作用
基本信息
- 批准号:10589501
- 负责人:
- 金额:$ 4.66万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2021
- 资助国家:美国
- 起止时间:2021-07-01 至 2026-06-30
- 项目状态:未结题
- 来源:
- 关键词:AnteriorBehavioralBrainDataDecision MakingElectrophysiology (science)ExhibitsHippocampus (Brain)Immediate-Early GenesLabelLeadLearningMeasurementMental HealthOdorsOlfactory PathwaysPatientsPerceptionPlayPost-Traumatic Stress DisordersProcessResearchRodentRoleSensorySignal TransductionStructureSystemTestingTimeTraumaawakebasedesensitizationmaladaptive behaviormultisensoryolfactory bulbolfactory nucleioptogeneticspiriform cortexresponsespatial integration
项目摘要
Project Summary
Sensory signals encountered under different circumstances may have quite different implications. In the
early olfactory system, preliminary evidence suggests that this (non-olfactory) contextual information is
integrated into odor representations at a very early stage, potentially even the main olfactory bulb. Recent
evidence indicates that the anterior olfactory nucleus (AON), a structure directly adjoining the olfactory bulb,
serves to integrate afferent odor information with contextual information from the ventral hippocampus
(vHC) and is necessary to solve contextually-dependent olfactory decision-making tasks.
The vHC is known to relay task-relevant spatial contextual information to other brain systems. We here
hypothesize that direct projections from the vHC to the AON play a dominant role in the integration of
contextual and olfactory information, and that the AON embeds this multisensory contextual information into
early-stage odor representations. Our preliminary data show that rodents can learn to respond differently to
odors based on the spatial context in which they are encountered, and that the expression of such a rule
depends on both AON and vHC, whereas a similar but odor-independent task requires vHC but not AON.
We propose a multipronged approach to understanding the integration of spatial context into olfactory
representations, engaging electrophysiological ensemble recordings and interareal coherence
measurements in awake, behaving rodents, the optogenetic manipulation of vHC and AON circuit activities,
and a double-labeling strategy for the within-subjects comparison of immediate-early gene (Fos) responses
across two experimental conditions separated in time.
Supplement summary: Piriform cortex (PC), is tightly interconnected with OB, AON and vHC and
potentially involved in similar processed. The additional Aims planned include testing the hypothesis that PC
performs complementary functions to AON and is involved in contextual processing.
项目摘要
在不同的情况下遇到的感觉信号可能有完全不同的含义。在
早期的嗅觉系统,初步证据表明,这种(非嗅觉)上下文信息是
在非常早期的阶段就整合到气味表征中,甚至可能是主要的嗅球。最近
有证据表明,前嗅核(AON),一种直接邻接嗅球的结构,
用于整合传入的气味信息与来自腹侧海马的上下文信息
(vHC)并且对于解决上下文相关的嗅觉决策任务是必要的。
已知vHC将任务相关的空间上下文信息传递给其他大脑系统。我们这里
假设从vHC到AON的直接投射在整合中起主导作用,
上下文和嗅觉信息,并且AON将这种多感官上下文信息嵌入到
早期的气味表征我们的初步数据表明,啮齿动物可以学会以不同的方式应对
气味的基础上,他们遇到的空间环境,并表示这样一个规则,
依赖于AON和vHC,而类似但与气味无关的任务需要vHC但不需要AON。
我们提出了一个多管齐下的方法来理解整合的空间背景到嗅觉
表征,参与电生理学合奏录音和interareal连贯性
在清醒的行为啮齿动物中的测量,vHC和AON回路活动的光遗传学操纵,
和双标记策略,用于受试者内即刻早期基因(Fos)反应的比较
在时间上分开的两个实验条件下。
补充摘要:梨状皮质(PC)与OB、AON和vHC紧密相连,
可能涉及类似的处理。计划的其他目标包括检验PC
执行AON的补充功能,并参与上下文处理。
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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Thomas A Cleland其他文献
Thomas A Cleland的其他文献
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{{ truncateString('Thomas A Cleland', 18)}}的其他基金
Role of anterior olfactory nucleus for multi-sensory integration in the olfactory system
前嗅核在嗅觉系统多感觉整合中的作用
- 批准号:
10295363 - 财政年份:2021
- 资助金额:
$ 4.66万 - 项目类别:
Role of anterior olfactory nucleus for multi-sensory integration in the olfactory system
前嗅核在嗅觉系统多感觉整合中的作用
- 批准号:
10634755 - 财政年份:2021
- 资助金额:
$ 4.66万 - 项目类别:
Circuit architecture and dynamics in odor representation and perception
气味表征和感知的电路架构和动力学
- 批准号:
10390573 - 财政年份:2015
- 资助金额:
$ 4.66万 - 项目类别:
Circuit architecture and dynamics in odor representation and perception
气味表征和感知的电路架构和动力学
- 批准号:
10613409 - 财政年份:2015
- 资助金额:
$ 4.66万 - 项目类别:
Circuit architecture and dynamics representation in odor perception
气味感知中的电路架构和动态表示
- 批准号:
9096828 - 财政年份:2015
- 资助金额:
$ 4.66万 - 项目类别:
CRCNS: Dynamical mechanisms of oscillation transitions in the olfactory system
CRCNS:嗅觉系统振荡转变的动力学机制
- 批准号:
9284443 - 财政年份:2014
- 资助金额:
$ 4.66万 - 项目类别:
CRCNS: Dynamical mechanisms of oscillation transitions in the olfactory system
CRCNS:嗅觉系统振荡转变的动力学机制
- 批准号:
8837265 - 财政年份:2014
- 资助金额:
$ 4.66万 - 项目类别:
CRCNS: Dynamical mechanisms of oscillation transitions in the olfactory system
CRCNS:嗅觉系统振荡转变的动力学机制
- 批准号:
8853266 - 财政年份:2014
- 资助金额:
$ 4.66万 - 项目类别:
CRCNS: Higher-order feature detection in olfactory bulb
CRCNS:嗅球中的高阶特征检测
- 批准号:
8523031 - 财政年份:2011
- 资助金额:
$ 4.66万 - 项目类别:
CRCNS: Higher-order feature detection in olfactory bulb
CRCNS:嗅球中的高阶特征检测
- 批准号:
8313859 - 财政年份:2011
- 资助金额:
$ 4.66万 - 项目类别:
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