基于对象的注意力选择的时间动态的变化
Hao Lou1, Monicque M Lorist1,2, Karin S Pilz1,3
1Department of Experimental Psychology, University of Groningen, Groningen, The Netherlands.
PloS one
|November 17, 2023
概括
基于对象的注意力,与基于空间的注意力不同,显示出显著的个体变化. 这项研究表明,注意力选择中的时间动态可能解释了基于对象的注意力效应的较低流行率.
科学领域:
- 认知神经科学 认知神经科学
- 视觉注意力研究 视觉注意力研究
- 人类感知研究 研究 人类感知研究
背景情况:
- 注意力可以指向空间位置或特定对象.
- 基于对象的注意力效应通常不那么明显,并且比基于空间的效应更可变.
- 基于对象的注意的低流行率和高变化的根本原因尚不清楚.
研究的目的:
- 调查注意力选择时间动态的变化是否导致基于对象的注意力的低流行率.
- 检查提示到目标间隔和基于空间和对象的注意力效应的表现之间的关系.
- 用频域分析探索视觉注意力的节奏采样模式.
主要方法:
- 采用两矩形区分任务,操纵了提示到目标的间隔 (50600 ms).
- 基于空间和对象的注意力效应在团体和个人层面都得到了量化.
- 引导确定了最大的注意力效应,而快速里埃转换 (FFT) 分析了节奏采样.
主要成果:
- 基于空间的注意力效应在大多数参与者和间隔中都是强大而稳定的.
- 基于对象的注意力效应很小,仅在一小部分参与者中观察到.
- 频率域中显著的周期性很少见,这表明大多数个体的节奏注意力采样有限.
结论:
- 注意力选择的时间动态的变化可能有助于基于对象的注意力的低流行率.
- 需要进一步的研究才能充分理解基于对象的注意力的时间特征和个体差异.
- 这些发现突出了视觉注意力中的时间,空间和对象表示之间的复杂相互作用.
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