外在奖励对技能学习过程中的运动可塑性的影响
Goldy Yadav1, Pierre Vassiliadis2,3,4, Cecile Dubuc2
1Institute of Neuroscience, Université catholique de Louvain, Brussels 1200, Belgium goldy.yadav@uclouvain.be.
eNeuro
|March 26, 2025
概括
货币奖励通过在训练早期微调皮质脊髓输出变化来加速运动技能学习. 这种神经生理学效应与奖励灵敏度有关,增强技能获取.
科学领域:
- 神经科学是一个神经科学.
- 发动机控制器的控制器
- 人类机动学习 人类机动学习
背景情况:
- 绩效反增强了人类运动技能的获得.
- 外在的奖励,比如金钱,可以进一步提高技能学习,但底层的神经生理学并未得到充分理解.
研究的目的:
- 调查金钱奖励在技能学习期间影响运动可塑性的神经生理机制.
- 评估奖励对皮质脊髓刺激性,抑制性和依赖使用的可塑性的影响.
主要方法:
- 65名健康的参与者在三个条件下执行了一项抓任务:仅有感官反,感官和强化反,或带有金钱奖励的反.
- 经磁刺激 (TMS) 用于在训练前,训练期间和训练结束后在休息状态下探测初级运动皮质的运动可塑性.
- 测量了运动唤起的潜力,以评估皮质脊髓输出幅度和可变性,GABAergic短内皮抑制和使用依赖的可塑性.
主要成果:
- 与单独的反相比,金钱奖励显著加速了运动技能学习.
- 在奖励组中,皮质脊髓输出可变性在训练的早期下降,这种效应在奖励敏感个体中更为明显.
- 运动兴奋和抑制的其他测量方法在不同组之间没有显著差异.
结论:
- 货币奖励通过在学习过程的早期调节静止状态皮质脊髓变异性来增强运动技能学习.
- 奖励灵敏度在运动技能获得上的外部奖励对神经生理学的好处起着作用.
- 皮质脊髓输出变化的微调是将奖励与改善的运动学习联系起来的关键机制.
相关概念视频
Incentive Theory: Pull Theory of Motivation
331
Incentive theory, or the "pull theory" of motivation, suggests that external rewards primarily drive behavior. Individuals are motivated to engage in activities when they anticipate a desirable outcome. This is why people often work hard for promotions or study intensively to achieve high grades. These incentives can be tangible, physical rewards such as money or promotions, or intangible, non-physical rewards like praise and social recognition.
The theory differentiates between...
The theory differentiates between...
331
Neuroplasticity
255
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
255
Primary and Secondary Reinforcers
149
In psychology, reinforcement is a key concept in behavior modification. B.F. Skinner demonstrated this with his experiments involving rats in what is known as a Skinner box. The rats learned to press a lever to receive food, a primary reinforcer that fulfilled their innate need for nourishment.
Effective reinforcers for humans vary depending on the individual and the context. Primary reinforcers, such as food, water, sleep, shelter, and pleasure, have inherent value and satisfy basic biological...
Effective reinforcers for humans vary depending on the individual and the context. Primary reinforcers, such as food, water, sleep, shelter, and pleasure, have inherent value and satisfy basic biological...
149
Long-term Potentiation
54.5K
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.
54.5K
Reinforcement
167
Positive and negative reinforcement are key concepts in operant conditioning, a learning process where the consequences of a behavior affect the likelihood of that behavior being repeated.
Positive reinforcement occurs when a behavior is followed by the presentation of a rewarding stimulus, increasing the frequency of that behavior. For example:
Positive reinforcement occurs when a behavior is followed by the presentation of a rewarding stimulus, increasing the frequency of that behavior. For example:
167
Law of Effect
1.3K
B.F. Skinner, a prominent figure in behavioral psychology, introduced operant conditioning by emphasizing the role of consequences in shaping behavior. This theory builds upon the law of effect proposed by Edward Thorndike, which posits that behaviors followed by satisfying outcomes are likely to be repeated. In contrast, those followed by unsatisfying outcomes are less likely to recur.
Edward Thorndike's foundational work involved studying learning in animals, particularly using puzzle...
Edward Thorndike's foundational work involved studying learning in animals, particularly using puzzle...
1.3K


