在外层皮质中潜在的错误警报的神经动力学
1Brain & Cognitive Sciences, University of Rochester, Rochester, NY 14627, USA.
bioRxiv : the preprint server for biology
|September 24, 2024
概括
神经动力学稳定性影响视觉感知和决策. 视觉皮层中更稳定的神经活动与更少的错误警报和更好的任务执行相关,这表明不同的策略是感知错误的基础.
科学领域:
- 神经科学是一个神经科学.
- 计算神经科学是一种神经科学.
- 系统神经科学 系统神经科学
背景情况:
- 神经群活动可以作为动态系统进行建模.
- 隐性动力学稳定性与运动控制和决策中的一致行为有关.
- 动态稳定在视觉感知和决策中的作用仍然不清楚.
研究的目的:
- 研究视觉皮层 (V4) 中潜伏动态稳定性与感知行为之间的关系.
- 确定神经不稳定是否导致视觉变化检测任务中的错误报警.
主要方法:
- 在V4中记录了执行非匹配样本视觉变化检测任务的子的神经群体活动.
- 在任务中分析了潜在神经动态的稳定性.
- 与行为指标相关的神经稳定性,包括错误报警率和反应时间.
主要成果:
- 较大的神经稳定性与较长的试验序列有关.
- 在V4动态中增加的稳定性与减少的错误报警率和更慢的反应时间相关.
- 低的神经稳定性在单一试验中预测了错误警报,特别是在试验的后期.
结论:
- 在V4中神经动态的稳定性影响知觉决策.
- 错误的警报可能来自不同的策略:与稳定性相关的故意错误或由于不稳定性而导致的误解.
- 检查神经稳定性可以明确感知错误的潜在机制.
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