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Negative and Cognitive Symptoms of Schizophrenia01:30

Negative and Cognitive Symptoms of Schizophrenia

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Negative symptoms of schizophrenia indicate a reduction or absence of typical behaviors and emotional responses found in healthy individuals, while positive symptoms reflect an excess or distortion of normal functioning.
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
36

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Updated: May 14, 2025

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负面情绪如何影响算术表现:磁脑电图研究

Camille Lallement1, Thomas Hinault2, Khoubeib Kanzari1

  • 1Aix-Marseille Université.

Journal of cognitive neuroscience
|May 12, 2025
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概括
此摘要是机器生成的。

负面情绪会影响算术表现,因为它会破坏早期大脑参与计算的过程,特别是在使用复杂的策略时. 这项研究使用磁脑电图来揭示这些对神经活动的影响.

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Last Updated: May 14, 2025

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科学领域:

  • 认知神经科学 认知神经科学
  • 神经成像是一种神经成像.
  • 心理学 心理学 心理学

背景情况:

  • 众所周知,负面情绪会影响认知功能.
  • 情绪影响数学处理的特定神经机制仍然不清楚.
  • 了解这些机制对于认知和情绪健康至关重要.

研究的目的:

  • 用基于战略的方法研究负面情绪对算术表现的影响.
  • 通过磁脑电图 (MEG) 识别数学任务中的情绪干扰的神经相关物.
  • 为了确定情绪效应是特定于域特定的算术过程还是域一般机制.

主要方法:

  • 磁脑电图 (MEG) 用于记录48名参与者的大脑活动.
  • 参与者在观看情绪消极或中性图像时进行了两位数的乘法估计.
  • 除了MEG数据,还分析了有关绩效和策略使用的行为数据.

主要成果:

  • 负面情绪显著影响了算术表现,尤其是在使用更困难的策略时.
  • 在负面情绪条件下,MEG揭示了对算术处理至关重要的左侧头顶部区域 (例如,内侧头顶部) 神经激活的减少.
  • 在与域-一般认知控制相关的前额区域中没有观察到显著的情绪效应.

结论:

  • 负面情绪会破坏算术中的早期,特定领域的神经过程 (刺激开始后100-250毫秒).
  • 这种障碍可能源于情绪调节和数学计算之间的竞争神经资源.
  • 这些发现突出了情绪对专业认知功能的影响,并为未来关于情绪-认知相互作用的研究提供了信息.