A HI-RES FMRI STUDY OF MTL CONTRIBUTIONS TO FULL AND PARTIAL EVENT ENCODING
MTL 对完整和部分事件编码贡献的高分辨率 FMRI 研究
基本信息
- 批准号:7601888
- 负责人:
- 金额:$ 0.58万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2007
- 资助国家:美国
- 起止时间:2007-06-01 至 2008-05-31
- 项目状态:已结题
- 来源:
- 关键词:BehaviorComputer Retrieval of Information on Scientific Projects DatabaseEventFemaleFunctional Magnetic Resonance ImagingFundingGoalsGrantImageInstitutionKnowledgeMedialMemoryNamesParticipantPersonsProceduresProcessPsyche structureResearchResearch PersonnelResolutionResourcesScanningSourceTemporal LobeTestingUnited States National Institutes of Healthbasemalememory recognition
项目摘要
This subproject is one of many research subprojects utilizing the
resources provided by a Center grant funded by NIH/NCRR. The subproject and
investigator (PI) may have received primary funding from another NIH source,
and thus could be represented in other CRISP entries. The institution listed is
for the Center, which is not necessarily the institution for the investigator.
Memory for the past yields knowledge that can be used to satisfy current goals. When we interrogate memory, recollection of a specific (criterial) contextual detail may be required to guide present behavior, with recollection of other (non-criterial) information often being insufficient to satisfy the goal. The distinction between criterial and non-criterial recollection may be vital to understanding the contributions of specific medial temporal lobe (MTL) substructures to encoding of item and conjunctive information. The current high-resolution fMRI study used the subsequent memory paradigm to assess how MTL encoding processes support later item recognition and later recognition accompanied by varying levels of contextual recollection. During encoding, participants were scanned while they incidentally encoded visually-presented adjectives in one of four ways: generated an associated mental image of an indoor scene or outdoor scene, or generated an associated name of a famous female person or male person. A post-scan recognition memory test probed for item and conjunctive memory in a three-step procedure: (1) item recognition (old/new), (2) task recollection (scene/person), and (3) detailed recollection (indoor/outdoor or male/female). Encoding activation in MTL subregions was analyzed based on later item recognition and varying levels of context recollection.
这个子项目是许多研究子项目中的一个
由NIH/NCRR资助的中心赠款提供的资源。子项目和
研究者(PI)可能从另一个NIH来源获得了主要资金,
因此可以在其他CRISP条目中表示。所列机构为
研究中心,而研究中心不一定是研究者所在的机构。
对过去的记忆产生的知识可以用来满足当前的目标。当我们询问记忆时,可能需要对特定(标准)上下文细节的回忆来指导当前行为,而对其他(非标准)信息的回忆通常不足以满足目标。区分标准和非标准的回忆可能是至关重要的理解特定的内侧颞叶(MTL)的子结构的项目和连接信息的编码的贡献。目前的高分辨率功能磁共振成像研究使用随后的记忆范式,以评估MTL编码过程如何支持后来的项目识别和后来的识别伴随着不同水平的上下文回忆。在编码过程中,参与者被扫描,同时他们以四种方式之一偶然编码视觉呈现的形容词:生成室内场景或室外场景的相关心理图像,或生成着名女性或男性的相关名称。扫描后再认记忆测试以三步程序探索项目和连接记忆:(1)项目再认(旧/新),(2)任务回忆(场景/人),(3)详细回忆(室内/室外或男性/女性)。MTL亚区的编码激活分析的基础上,后来的项目识别和不同水平的上下文回忆。
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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Alison R Preston其他文献
Alison R Preston的其他文献
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{{ truncateString('Alison R Preston', 18)}}的其他基金
Oscillatory mechanisms of context dependent cognitive maps in human memory
人类记忆中情境相关认知图的振荡机制
- 批准号:
10317842 - 财政年份:2021
- 资助金额:
$ 0.58万 - 项目类别:
Oscillatory mechanisms of context dependent cognitive maps in human memory
人类记忆中情境相关认知图的振荡机制
- 批准号:
10443865 - 财政年份:2021
- 资助金额:
$ 0.58万 - 项目类别:
Hippocampal and prefrontal contributions to memory integration
海马和前额叶对记忆整合的贡献
- 批准号:
10397574 - 财政年份:2013
- 资助金额:
$ 0.58万 - 项目类别:
Hippocampal and prefrontal contributions to memory integration
海马和前额叶对记忆整合的贡献
- 批准号:
8846671 - 财政年份:2013
- 资助金额:
$ 0.58万 - 项目类别:
Hippocampal and prefrontal contributions to memory integration
海马和前额叶对记忆整合的贡献
- 批准号:
9261395 - 财政年份:2013
- 资助金额:
$ 0.58万 - 项目类别:
Hippocampal and prefrontal contributions to memory integration
海马和前额叶对记忆整合的贡献
- 批准号:
8480390 - 财政年份:2013
- 资助金额:
$ 0.58万 - 项目类别:
Hippocampal and prefrontal contributions to memory integration
海马和前额叶对记忆整合的贡献
- 批准号:
9050708 - 财政年份:2013
- 资助金额:
$ 0.58万 - 项目类别: