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相关概念视频

Physiological Foundation of Stress01:24

Physiological Foundation of Stress

56
Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
Role of the Sympathetic Nervous System
Adrenaline triggers the...
56
Psychological Responses to Stress01:20

Psychological Responses to Stress

54
Psychological responses to stress encompass the various cognitive and emotional reactions individuals experience when faced with challenging or threatening situations, such as a job loss. Prolonged exposure to stressors can disturb emotional balance, increasing negative emotions (e.g., anxiety and sadness) and diminishing positive emotions (e.g., joy and satisfaction). These persistent emotional shifts are associated with an increased risk of both physical illness and mental health issues, such...
54
Introduction to Stress and Lifestyle01:27

Introduction to Stress and Lifestyle

104
Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
104
Cognitive Theories: Schachter-Singer Theory of Emotion01:20

Cognitive Theories: Schachter-Singer Theory of Emotion

378
Stanley Schachter and Jerome Singer proposed the two-factor theory of emotion, which emphasizes the interplay between physiological arousal and cognitive labeling in forming emotional experiences. This theory suggests that emotions are not simply a result of physiological responses but rather a combination of these responses and the individual's cognitive interpretation of them.
Physiological Arousal and Cognitive Labeling
According to this theory, when an individual experiences...
378
Components of Stress01:23

Components of Stress

211
Stress analysis under multiple loading conditions is intricate, necessitating a comprehensive grasp of normal and shearing stresses. Consider a small cube at point O, subjected to stress on all six faces, visible or not. Normal stress components σx, σy, σz act perpendicularly to the x, y, and z axes. Shearing stress components τxy and τxz are exerted on faces perpendicular to these axes.
Interestingly, the hidden cube faces also experience these stresses, equal and...
211
Stress Concentrations01:13

Stress Concentrations

229
The concept of stress concentration is crucial for understanding how materials respond under bending stresses, particularly when there are irregularities or discontinuities in the material's geometry. Normally, stress in a symmetric member subjected to pure bending is assumed to be uniformly distributed across the entire cross-section. However, this assumption does not hold when there are variations in the cross-sectional geometry or the presence of notches and holes.
The stress...
229

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Updated: Jun 25, 2025

Assessment of Stress Effects on Cognitive Flexibility using an Operant Strategy Shifting Paradigm
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戏剧学员的认知功能与表演期间的生理压力有关.

Negin Motamed Yeganeh1, Taylor McKee1, Janet F Werker1

  • 1The University of British Columbia, Canada.

Musicae scientiae : the journal of the European Society for the Cognitive Sciences of Music
|May 24, 2024
PubMed
概括
此摘要是机器生成的。

拥有更好的认知功能,如注意力和执行功能的歌剧歌手,经历的表现压力较小. 较高的认知功能与要求高的音乐表演期间较低的生理压力相关.

关键词:
执行职能 执行职能是指执行职能.心率变化的心率变化.音乐表演 音乐表演一个歌剧表演的歌剧表演.生理压力是指生理上的压力.

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科学领域:

  • 认知神经科学 认知神经科学
  • 音乐心理学 音乐心理学
  • 心理生理学 心理生理学

背景情况:

  • 歌剧歌手在表演期间面临相当大的压力,这影响了他们执行要求高的音乐作品的能力.
  • 之前的研究表明,增强认知功能和减少个人压力水平之间存在联系.
  • 在音乐表演中,注意力,记忆力和执行功能等认知功能至关重要.

研究的目的:

  • 研究歌剧演出期间歌剧学员认知功能与生理压力之间的关系.
  • 探索注意力,记忆和执行功能如何与现场歌剧场景中的压力指标有关.

主要方法:

  • 收集了24名在休息和现场表演期间的歌剧学员的心脏活动数据 (心率变化 - HRV).
  • 使用标准化的神经心理测试评估认知功能:注意力 (IVA-2),记忆力 (CVLT-3,WMS-IV) 和执行功能 (Trail Making Test).
  • 分析了HRV (作为压力指标) 和不同状态 (休息与表现) 的认知指标之间的相关性.

主要成果:

  • 休息期间心率变化与注意力正相关.
  • 表演期间心率变化与执行功能正相关.
  • 这些发现表明认知功能与歌剧表演期间的压力之间存在特定的关系.

结论:

  • 较大的认知功能,特别是执行功能,在歌剧表演期间与较低的生理压力有关.
  • 这项研究提供了初步证据,支持认知能力与音乐家的表现压力管理之间的联系.
  • 这些见解可能会为歌剧歌手的培训策略提供信息,以提高认知性和表现结果.