工作记忆能力的基础的神经认知操作:对延迟和基于时间的参数的分析
Sheina Emrani1, Melissa Lamar2, Catherine C Price3
1Department of Psychiatry and Human Behavior, Brown University, Providence, RI, USA.
Journal of Alzheimer's disease : JAD
|July 17, 2023
概括
执行任务的神经认知操作随着时间的推移而变化. 早期反应阶段依赖于口头工作记忆,而后期阶段涉及处理速度和视觉空间技能,有助于患者诊断.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
背景情况:
- 执行注意力理论认为,神经认知操作可以灵活地用于完成任务.
- 这种灵活性表明,在任务的不同阶段,不同的认知过程可能是活跃的.
研究的目的:
- 调查是否在响应执行过程中在不同的时间点招募了不同的神经认知操作.
- 测试这一假设,即早期反应阶段与后期阶段不同的认知资源.
主要方法:
- 向后数字跨度测试 (BDST) 给58名记忆诊所患者 (MCI和非MCI) 进行.
- 测量了第一个和第三个数字的反向响应的响应延迟.
- 延迟与口头工作记忆,视觉工作记忆,处理速度,视觉空间能力,命名和口头情节性记忆测试的表现相关.
主要成果:
- 第一次响应中较慢的延迟与更好的口头工作记忆和视觉空间表现相关.
- 第三个响应中的更快延迟与更好的处理速度和视觉空间性能相关.
结论:
- 执行任务的神经认知操作不均,在不同时间的响应时代有所不同.
- 基于时间的延迟参数是有效的区分成功的执行神经认知操作在记忆诊所患者.
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