双路线证据积累中的抑制动态解释了冲突任务的响应时间分布
Francisco M López1, Andrés Pomi2
1Frankfurt Institute for Advanced Studies, Ruth-Moufang-Str. 1, 60438 Frankfurt, Germany.
Cognitive neurodynamics
|August 6, 2024
概括
一个新的双路证据积累模型 (DREAM) 使用抑制动态解释了冲突任务中的决策. 这个模型准确地复制响应时间数据,没有时间依赖的函数,为认知过程提供了洞察力.
科学领域:
- 认知心理学 认知心理学
- 计算神经科学是一种计算神经科学.
- 决策模型 决策模型
背景情况:
- 像西蒙和埃里克森任务这样的冲突任务揭示了复杂的响应时间分布.
- 证据积累模型最近解释了这些分布,通常使用时间依赖.
- 对现有模型来说,复制负倾斜的三角洲地图仍然是一个挑战.
研究的目的:
- 引入一种在冲突任务中进行决策的替代模型.
- 提出一种仅基于双路线架构中的抑制动态的模型.
- 证明模型适应实验数据和重现关键现象的能力.
主要方法:
- 模拟了同时自动和受控的漂移扩散过程.
- 采用了双路线架构,控制的过程抑制了自动的过程.
- 提出的双路证据积累模型 (DREAM) 被开发出来.
主要成果:
- 在调整响应时间分布方面,DREAM实现了与以前的模型相当的性能.
- 该模型成功地复制了条件准确性函数.
- DREAM准确地复制了带有正和负斜率的三角洲图形,没有时间依赖的功能.
结论:
- 双路线架构中的抑制动态为模拟冲突任务中的决策提供了可行的替代方案.
- 梦想为理解认知控制和反应选择提供了一个新的框架.
- 该模型的参数可以提供对感知表示和决策过程的见解.
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