皮层和皮层下尖峰的时间权衡揭示了它们对行为贡献的刺激依赖差异
bioRxiv : the preprint server for biology
|September 4, 2023
概括
上层结核 (SC) 和主要视觉皮层 (V1) 对视觉感知有不同的贡献. SC对于检测亮度和对比度变化至关重要,而V1对于对比度至关重要,但不检测亮度.
科学领域:
- 神经科学是一个神经科学.
- 视觉处理 视觉处理
- 感官感知是一种感官感知.
背景情况:
- 初级视觉皮层 (V1) 和上层结膜 (SC) 是早期的视觉处理中心,具有传统上不同的角色.
- 新出现的证据表明,SC也有助于特征感知,模糊了与V1已知的功能的界线.
- 区分V1和SC对感知的因果贡献对于理解视觉处理至关重要.
结论:
- 视觉对比感知依赖于V1和SC的协调活动.
- 亮度变化检测优先利用SC神经活动.
- 这项研究揭示了V1和SC在处理不同视觉属性的过程中具有不同的因果作用.
相关概念视频
Relationship Formation
What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...
Timing and Consequences on Behavior
In operant conditioning, the timing of reinforcement is crucial. For animals like rats and cats, immediate reinforcement (within a few seconds) is much more effective than delayed reinforcement. For example, a food reward for a rat needs to follow within 30 seconds of pressing a bar to be effective.
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant factor...
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant factor...
Self-Regulation
Self-regulation, also known as self-control, encompasses a range of cognitive and behavioral processes that allow individuals to adjust their internal states and outward actions to align with socially acceptable norms and long-term goals. It plays a fundamental role in adaptive functioning, from resisting impulsive behaviors to persisting through challenging tasks. While its benefits are widely recognized, self-regulation is not limitless. Muraven and Baumeister's theory posits that...


