Spatial inhibition of return as a function of fixation history, task, and spatial references.

ABSTRACT: In oculomotor selection, each saccade is thought to be automatically biased toward uninspected locations, inhibiting the inefficient behavior of repeatedly refixating the same objects. This automatic bias is related to inhibition of return (IOR). Although IOR seems an appealing property that increases efficiency in visual search, such a mechanism would not be efficient in other tasks. Indeed, evidence for additional, more flexible control over refixations has been provided. Here, we investigated whether task demands implicitly affect the rate of refixations. We measured the probability of refixations after series of six binary saccadic decisions under two conditions: visual search and free viewing. The rate of refixations seems influenced by two effects. One effect is related to the rate o

SUBMITTER: Fabius JH 

PROVIDER: S-EPMC4972844 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature