冲动性选择的出现是因为前皮质无法编码深思熟虑的策略
Shelby M White1, Mitchell D Morningstar1, Emanuela De Falco2
1Psychology Department, Indiana University-Purdue University, Indianapolis, Indiana 46202.
eNeuro
|November 18, 2024
概括
当前带带皮层 (ACC) 神经活动受到干扰时,冲动性选择会增加,特别是在较长的延迟时. ACC神经元组编码决策策略,其中断会损害审议机制.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 行为经济学是一种行为经济学.
背景情况:
- 冲动性与大脑区域的缺陷有关,例如前带皮层 (ACC).
- 延迟折扣 (DD) 通过测量随时间的奖励值来量化认知冲动性.
研究的目的:
- 调查ACC神经活动状态如何在延迟折扣任务中编码决策策略.
- 通过编码策略来测试ACC组合指导行为的假设.
主要方法:
- 雄性Wistar老鼠执行了一个延迟折扣任务.
- 对ACC神经元的光遗传沉默被用来评估因果作用.
- 为了分析神经活动,进行了大规模的多个单元记录.
主要成果:
- 在8秒的延迟时间内,ACC静音选择性地增加了冲动选择.
- 神经编码机制从程序性 (4s) 转移到深思熟虑的 (8s) 随着日益延迟.
- 对于不同的延迟持续时间,ACC整体活动显示出不同的时间动态,在8s时观察到升.
结论:
- ACC神经元组合对于编码决策策略至关重要,特别是那些需要审议的策略.
- 在ACC的刻意编码机制中发生的干扰会加剧冲动性.
- 调查结果强调了ACC在调节即时奖励和延迟奖励之间的选择中的作用.
相关概念视频
Reason and Intuition
6.4K
The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the...
6.4K
Decision Making
92
Decision-making is a fundamental cognitive process that involves evaluating alternatives and selecting among them. This process can range from simple choices, such as deciding what to wear, to complex decisions, like choosing a major in college or a career path. The complexity of the decision often dictates the approach we use, which can be broadly categorized into two types: automatic and controlled decision-making.
Automatic decision-making is fast, intuitive, and relies on gut feelings...
Automatic decision-making is fast, intuitive, and relies on gut feelings...
92
Role of Cerebellum and Prefrontal Cortex in Memory
374
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...
374
Revisionist Views of Adolescent and Adult Cognition
26
A revisionist approach to Jean Piaget's theory of cognitive development has brought new insights that challenge and reinterpret his established ideas. Piaget proposed that the formal operational stage, emerging in adolescence, represents the culmination of cognitive maturity. During this stage, individuals are said to develop abstract thinking, engage in systematic problem-solving, and show a form of egocentrism, believing others are as preoccupied with their behavior as they are...
26
The Anchoring-and-Adjustment Heuristic
7.2K
In order to make good decisions, we use our knowledge and our reasoning. Often, this knowledge and reasoning is sound and solid. However, sometimes, we are swayed by biases or by others manipulating a situation. For example, let’s say you and three friends wanted to rent a house and had a combined target budget of $1,600. The realtor shows you only very run-down houses for $1,600 and then shows you a very nice house for $2,000. Might you ask each person to pay more in rent to get the...
7.2K
Timing and Consequences on Behavior
82
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...
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...
82


