活跃视觉门眼睛主导在人类成年人的可塑性
Cecilia Steinwurzel1, Maria Concetta Morrone2, Giulio Sandini3
1Department of Translational Research on New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy; Department of Psychology, University of Cambridge, Cambridge CB2 3EB, UK.
Current biology : CB
|October 24, 2023
概括
在初级视觉皮层 (V1) 中,成年人大脑的可塑性可以受到行动的影响. 在视觉运动任务中引入视觉延迟,而不是剥夺,诱导眼睛主导可塑性,表明行动是关键.
科学领域:
- 神经科学是一个神经科学.
- 视觉感知 视觉感知 视觉感知
- 神经可塑性 神经可塑性
背景情况:
- 初级视觉皮层 (V1) 呈现成人可塑性,允许单眼剥夺来增强剥夺的眼睛的反应.
- 这种恒常性可塑性传统上与神经元竞争和因视觉输入减少而导致的响应增益变化有关.
- 自愿行动越来越多地影响V1处理,影响对自我运动的视觉感知.
研究的目的:
- 调查是否可以在不降低视觉图像质量的情况下诱导眼睛主导的恒常性可塑性.
- 探索视觉运动控制和动作条件视觉反在成人V1可塑性中的作用.
- 为了确定视觉输入和预期的感官反之间的差异是否可以引起可塑性.
主要方法:
- 参与者执行了一项视觉运动任务,对一只眼睛进行控制的视觉延迟.
- 通过测量任务后视觉反应的变化来评估眼睛主导性可塑性.
- 该研究操纵了视觉输入和运动指令之间的一致性,而不是视觉输入质量.
主要成果:
- 在眼睛主导下,通过在活跃的视觉运动任务中引入视觉延迟,成功诱导了恒常性可塑性.
- 这些发现表明,可塑性是由单眼视觉输入和个体行为之间的一致性所限制的.
- 降低图像质量是不必要的;改变视觉输入在动作控制中的作用是足够的.
结论:
- 行动在塑造视觉处理中起着至关重要的作用,对于诱导成年大脑中的恒常性可塑性至关重要.
- 视觉感知和运动动作之间的一致性是成人神经可塑性的关键因素.
- 未来的研究可以探索感官运动一体化如何推动视觉系统中的可塑性.
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