相关实验视频
Updated: Jan 10, 2026

08:17
Reducing State Anxiety Using Working Memory Maintenance
Published on: July 19, 2017
8.1K
在工作内存维护过程中异步启动和异常状态
Rana Mozumder1, Zhengyang Wang2, Wenhao Dang1
1Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235.
bioRxiv : the preprint server for biology
|November 24, 2025
概括
工作记忆依赖于分布式的神经活动,而不仅仅是持续的尖. 信息表示的波动表明大脑中的异步网络状态.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 系统神经科学 系统神经科学
背景情况:
- 工作记忆对于认知任务至关重要.
- 存在两个主要理论:持续的尖端活动和活动静默的机制.
- 他们的相对贡献仍在争论中.
研究的目的:
- 调查工作记忆背后的神经机制.
- 为了确定持续活动和活动静止状态之间的平衡.
- 在工作记忆维护期间探索区域间的通信.
主要方法:
- 从的侧面前额外和后额外皮层记录了神经活动.
- 使用高密度微电极探针进行详细的记录.
- 分析了记忆信息中持续的尖,沉默时期和时间波动.
主要成果:
- 在前额神经元中观察到平均持久延迟活动.
- 沉默时期并没有显著地偏离机会.
- 记忆信息的时间波动显示区域之间的相关性较弱,表明同步的异常状态.
- 与伪人口相比,同时解码的准确性降低了.
结论:
- 工作记忆是由持续放电的分布式模式维持的.
- 异步网络状态,受广泛波动的影响,是工作内存的特征.
- 研究结果支持一种模型,其中信息忠实度在皮层神经元之间有所不同.
更多相关视频
10:38A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
Published on: July 16, 2015
14.0K
10:43Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity
Published on: July 1, 2014
15.7K
相关概念视频
Working Memory
774
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
774
Interference and Decay
404
Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
404
Long-term Potentiation
58.2K
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
58.2K
Long-term Potentiation
3.4K
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when...
Hebbian LTP
LTP can occur when...
3.4K
Storage
345
A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
345
Long-Term Memory
615
Long-term memory is a relatively permanent type of memory, capable of storing vast amounts of information over extended periods. Its storage capacity is generally considered unlimited.
Long-term memory can be categorized into two primary types: explicit and implicit memory. Explicit memory, also known as declarative memory, involves the conscious recollection of information that we deliberately try to remember, recall, and articulate. This type of memory encompasses specific facts, events, and...
Long-term memory can be categorized into two primary types: explicit and implicit memory. Explicit memory, also known as declarative memory, involves the conscious recollection of information that we deliberately try to remember, recall, and articulate. This type of memory encompasses specific facts, events, and...
615