增加上肢精神运动任务的认知需求,增加了对努力的感知
Villeneuve Émilie1,2, Mangin Thomas3,4, Gaveau Jeremie5
1École de kinésiologie et des sciences de l'activité physique (EKSAP), Faculté de médecine, Université de Montréal, Montréal, Canada.
Cognitive, affective & behavioral neuroscience
|February 23, 2026
概括
努力的感知 (PE) 随着认知需求以维持精神运动性能而增加. 然而,固定PE的高认知需求会降低性能,这表明PE可以监控任务强度.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 发动机控制器 发动机控制器
背景情况:
- 激励强度理论认为,对努力的感知 (PE) 是一种资源监控机制,用于自我调节目标导向的行动.
- 资源监测和自我调节通常在认知或运动领域中被孤立地研究.
- 在心理运动任务中研究认知需求和PE之间的相互作用对于理解努力调节至关重要.
研究的目的:
- 检查认知需求如何影响心理运动任务中的PE.
- 评估规定目标PE强度对任务绩效的影响.
- 探索PE作为监测和规定精神运动任务强度的指标的潜力.
主要方法:
- 参与者内部进行了两项实验,每个实验共有20名参与者.
- 实验1:在不同的认知需求下 (Stroop任务) 在上肢心理运动任务 (Box和Block,指针) 中评估PE.
- 实验2:在被操纵的认知需求下,在固定PE的自我节奏指点任务中评估性能. 监测生理指标 (心率,呼吸率,EMG) 的情况.
主要成果:
- 在实验1中,随着认知需求的增加,PE增加,有助于在精神运动任务中维持性能.
- 在实验2中,在固定PE下,认知需求升高导致了自动指点任务的性能降低.
- 心率对认知需求很敏感,但在实验1中没有完全捕捉到低至中等的增加.
结论:
- 努力的感知可以有效地用于规定和监测精神运动任务的强度.
- 研究结果支持PE在基于努力的决策和在认知和运动领域的自我调节中的作用.
- 这项研究为研究PE的神经生理学以及认知和运动努力之间的关系开辟了道路.
相关概念视频
01:38Cognitive Dissonance
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
01:04Social Facilitation
Not all intergroup interactions lead to negative outcomes. Sometimes, being in a group situation can improve performance. Social facilitation occurs when an individual performs better when an audience is watching than when the individual performs the behavior alone. This typically occurs when people are performing a task for which they are skilled.
01:20Motor Unit Stimulation
When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
01:27Exercise and Muscle Performance
Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
01:24Muscle Coordination and Action
Muscle coordination is a complex and finely tuned process essential for smooth and purposeful movements like flexion, extension, adduction, abduction, and rotation. The human body orchestrates the actions of various muscles working in concert, each with a specific role. Four functional types describe how muscles work together: agonist, antagonist, synergist, and fixator.
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement.
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement.
01:29Self-Efficacy
Self-efficacy is the belief in one's capacity to organize and execute actions necessary to manage prospective situations. This belief significantly influences how individuals approach goals, tasks, and challenges across different domains of life.Psychological and Educational ImpactsIndividuals with strong self-efficacy are more resilient in the face of difficulties. They are more likely to adopt effective problem-solving strategies, persist through obstacles, and regulate emotions such as...