THE FUNCTION OF VISUAL-SEARCH AND MEMORY IN SEQUENTIAL LOOKING TASKS

Citation
J. Epelboim et al., THE FUNCTION OF VISUAL-SEARCH AND MEMORY IN SEQUENTIAL LOOKING TASKS, Vision research, 35(23-24), 1995, pp. 3401-3422
Citations number
28
Categorie Soggetti
Neurosciences,Ophthalmology
Journal title
ISSN journal
00426989
Volume
35
Issue
23-24
Year of publication
1995
Pages
3401 - 3422
Database
ISI
SICI code
0042-6989(1995)35:23-24<3401:TFOVAM>2.0.ZU;2-P
Abstract
Eye and head movements were recorded as unrestrained subjects tapped o r only looked at nearby targets. Scanning patterns were the same in bo th tasks: subjects looked at each target before tapping it; visual sea rch had similar speeds and gaze-shift accuracies, Looking, however, to ok longer and, unlike tapping, benefitted little from practice. Lookin g speeded up more than tapping when memory load was reduced: memory wa s more efficient during tapping. Conclusion: eye movements made when o nly looking are different from those made when tapping, Visual search functions as a separate process, incorporated into both tasks: it can be used to improve performance when memory load is heavy.