Vicario Carmelo Mario, Caltagirone Carlo, Oliveri Massimiliano
Dipartimento di Psicologia, Università degli Studi di Palermo, Viale delle Scienze, Edificio 15, 90100 Palermo, Italy.
Brain Cogn. 2007 Jun;64(1):68-73. doi: 10.1016/j.bandc.2006.12.002. Epub 2007 Mar 29.
The representation of time and space are closely linked in the cognitive system. Optokinetic stimulation modulates spatial attention in healthy subjects and patients with spatial neglect. In order to evaluate whether optokinetic stimulation could influence time perception, a group of healthy subjects performed "time-comparison" tasks of sub- and supra-second intervals before and after leftward or rightward optokinetic stimulation. Subjective time perception was biased by the direction of optokinetic stimulation. Rightward optokinetic stimulation induced an overestimation of time perception compared with baseline and leftward optokinetic stimulation. These results indicate a directional bias in time perception induced by manipulation of spatial attention and could argue for a mental linear representation of time intervals.
时间和空间的表征在认知系统中紧密相连。视动刺激可调节健康受试者以及患有空间忽视症患者的空间注意力。为了评估视动刺激是否会影响时间感知，一组健康受试者在向左或向右视动刺激前后执行了亚秒级和超秒级间隔的“时间比较”任务。主观时间感知受到视动刺激方向的影响。与基线和向左视动刺激相比，向右视动刺激导致时间感知高估。这些结果表明，通过操纵空间注意力可在时间感知中产生方向偏差，这可能支持时间间隔的心理线性表征。
