这些事情需要时间:海马体在识别记忆中的作用是什么?

IF 2 4区医学 Q3 NEUROSCIENCES

Cognitive Neuroscience Pub Date : 2022-05-16 DOI:10.1080/17588928.2022.2076073

C. Kirwan

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引用次数: 0

摘要

摘要Tallman、Clark和Smith（本期）在一项巧妙的实验设计中，测试了海马和皮层功能磁共振成像激活和功能连接随记忆年龄的变化。他们发现，在几个皮层区域，激活会根据功率函数（增加和减少）而变化，但在海马体或内侧颞叶（MTL）内则不然。此外，皮层区域之间的功能连接随着记忆年龄的增长而增加，但海马体的功能连接减少。综合来看，这些结果为标准合并模型提供了强有力的支持。然而，他们留下了一个悬而未决的问题，即海马体在识别记忆表现中扮演什么角色。

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These things take time: what is the role of the hippocampus in recognition memory over extended delays?

ABSTRACT In a clever experimental design, Tallman, Clark, and Smith (this issue) tested the changes in fMRI activation and functional connectivity in the hippocampus and cortex as a function of memory age. They found that activation changed according to a power function (both increasing and decreasing) in several cortical regions but not within the hippocampus or medial temporal lobe (MTL). Further, functional connectivity increased with memory age between cortical regions but decreased for the hippocampus. Taken together, these results offer strong support for the standard consolidation model. However, they leave open the question of what role the hippocampus plays in recognition memory performance.

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来源期刊

Cognitive Neuroscience NEUROSCIENCES-

CiteScore

3.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Cognitive Neuroscience publishes high quality discussion papers and empirical papers on any topic in the field of cognitive neuroscience including perception, attention, memory, language, action, social cognition, and executive function. The journal covers findings based on a variety of techniques such as fMRI, ERPs, MEG, TMS, and focal lesion studies. Contributions that employ or discuss multiple techniques to shed light on the spatial-temporal brain mechanisms underlying a cognitive process are encouraged.