工作记忆的神经相关的基础上的分子机制
Xiaotao Xu1,2,3,4, Han Zhao1,2,3,4, Yu Song1,2,3,4
1Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
BMC biology
|October 20, 2024
概括
这项研究揭示了与工作记忆 (WM) 性能相关的大脑网络模式. 分子分析将这些模式与基因表达和多巴胺等神经递质联系起来,为WM的生物基础提供了洞察力.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 分子生物学分子生物学
背景情况:
- 工作记忆 (WM) 对执行功能至关重要,涉及短期信息维护.
- 神经成像研究确定了WM的大脑区域,但分子基础尚不清楚.
研究的目的:
- 调查工作记忆的神经相关性.
- 阐明这些神经相关的基础分子机制.
主要方法:
- 对502名健康成年人的休息状态fMRI数据进行了voxel-wise分析.
- 转录组-神经成像空间相关性和基因丰富分析.
- 对神经递质关联的跨区域空间相关性分析.
主要成果:
- 较好的WM性能与左下状圈的功能连接密度 (FCD) 较低以及左前带状皮层的FCD较高相关.
- 鉴定了与基因类别 (皮质成分,生物过程,通道) 相关的WM神经相关物.
- 在WM神经相关物和神经递质 (多巴胺,谷氨酸,血清素,乙胆) 之间发现了显著的关联.
结论:
- 这些发现揭示了驱动工作记忆的神经基础的潜在分子机制.
- 将WM中的大脑网络活动与特定的基因表达和神经递质系统联系起来.
更多相关视频
09:05Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)
Published on: June 12, 2017
29.6K
07:01Working Memory Training for Older Participants: A Control Group Training Regimen and Initial Intellectual Functioning Assessment
Published on: September 20, 2020
4.6K
相关概念视频
Working Memory
137
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...
137
Role of Neurotransmitters in Memory
456
Neurotransmitters are integral to the brain's communication system, enabling neurons to transmit signals across synapses. This chemical exchange underpins various cognitive functions, including memory processes. The role of neurotransmitters in memory is multifaceted, influencing the encoding, consolidation, and retrieval of memories through their action on different neural circuits.
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is...
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is...
456
Role of Cerebellum and Prefrontal Cortex in Memory
376
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the...
376
Information Processing Approach
30
The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
30
Neuronal Communication
791
Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
791
