工作记忆 维护视觉和听觉空间信息依赖于背面前垂体皮层中超模神经代码
Aurora Rizza1, Tiziana Pedale2, Serena Mastroberardino3
1Department of Psychology, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
Brain sciences
|February 23, 2024
概括
面对面的注意力网络使用一个共同的超模神经代码来维护工作记忆 (WM),无论信息是视觉还是听觉. 这表明在高负载任务中处理不同传感输入的统一系统.
科学领域:
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
- 工作记忆研究 工作记忆研究
背景情况:
- 面对面的注意力网络对工作记忆 (WM) 至关重要,特别是在高认知负载下.
- 关于这个网络是否以超模 (一般) 或模式特定 (感官特定) 的方式处理信息,存在争议.
研究的目的:
- 在WM维护期间调查视觉与听觉信息的神经表示.
- 确定前端对象网络是否使用超模或模特特异的神经代码.
主要方法:
- 功能磁共振成像 (fMRI) 用于扫描参与者.
- 多声元模式分析 (MVPA) 评估了WM维护视觉 (颜色) 和听觉 (音调) 刺激期间的神经模式.
- 使用小与大空间配置来操纵WM负载.
主要成果:
- 参与者在高WM负载下显示精度降低,证实了有效的操纵.
- 结合分析揭示了广泛的前侧双眼活动,特别是在前眼球和上侧双眼球中,用于跨模式的高负荷WM维护.
- 在这些区域内,MVPA没有发现视觉与听觉信息的独特神经模式.
结论:
- 这些发现支持在背部前侧双网络内有一个共同的,超模神经代码来保留空间信息.
- 这表明大脑在工作记忆任务中使用统一的系统来处理和维护不同感官模式的信息.
相关概念视频
Working Memory
166
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...
166
Somatosensory, Motor, and Association Cortex
506
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
506
Association Areas of the Cortex
5.3K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
5.3K
Motor and Sensory Areas of the Cortex
3.8K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
3.8K
Role of Cerebellum and Prefrontal Cortex in Memory
430
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...
430
Lobes of the Cerebrum
655
The cerebral cortex, a critical structure of the brain, is intricately divided into two hemispheres, each consisting of four distinct lobes: occipital, temporal, frontal, and parietal. These lobes function cooperatively to regulate various cognitive and sensory functions, forming the basis of our complex neural capabilities.
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
655


