跨试验的目标行为是否会影响代表性的势头?
Susan E Ruppel1, Timothy L Hubbard2
1University of South Carolina Upstate, USA.
Perception
|December 10, 2024
概括
这项研究探讨了过去的目标行为如何影响表达势头. 研究结果表明,先前的试验刺激,无论是移动的,静止的,还是朝着不同的方向,都没有影响当前的表达势头,挑战基于期望的理论.
科学领域:
- 认知心理学 认知心理学
- 感知和运动控制感知和运动控制
背景情况:
- 代表动量描述了感知移动物体的倾向,认为移动物体的距离比移动物体的距离更远.
- 了解影响表达势头的因素对于运动感知和预期的认知理论至关重要.
研究的目的:
- 为了确定之前的试验中目标刺激的频率和方向是否会影响当前目标的表示动量.
- 测试学习期望在调节表达势头中的作用.
主要方法:
- 实验1操纵了试验中的移动与静止目标的比例.
- 实验2操纵了各种试验中向右运动与向左运动的比例.
- 参与者的代表性势头是在不同的目标呈现的统计规律下测量的.
主要成果:
- 大多数先前的试验,包括静止目标,相同方向运动或相反方向运动,都没有影响到代表势头.
- 目标呈现中的统计规律性并没有改变代表势头的幅度.
结论:
- 这些发现表明,代表性势头是强大的,不容易受到来自试验历史的学习期望的影响.
- 结果挑战了假设表示势头主要是由基于上下文统计数据的预测机制驱动的理论.
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