Investigating temporal properties of covert shifts of visual attention using the attentional walk task |
| |
Authors: | Email author" target="_blank">Elisabeth?HeinEmail author Cathleen?M?Moore |
| |
Institution: | (1) Department of Psychology, E11 Seashore Hall, University of Iowa, Iowa City, IA 52242, USA |
| |
Abstract: | The attentional walk task was used to investigate the temporal properties of covert shifts of attention. Observers shifted attention within arrays
of identical items in response to a series of auditory commands and reported the color of the final disk. The density of the
arrays and the timing of the shift commands varied. Performance decreased as density increased, and the minimal amount of
time needed to shift attention depended on the density of the display, varying from 350 to 750 msec. In addition, the observers
were able to maintain attentional focus for at least 3,500 msec without a decline in performance, regardless of density. Thus,
although the ability to maintain attention at a given position was found to be independent of the precision with which that
location was defined, more precise attentional shifts required more time to execute. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|