eCite Digital Repository
Perceptual and motor mechanisms of oculomotor inhibition of return
Citation
Wang, Z and Satel, J and Klein, RM, Perceptual and motor mechanisms of oculomotor inhibition of return, 52nd Annual Meeting of the Psychonomic Society, Seattle (2011) [Conference Extract]
![]() | PDF Pending copyright assessment - Request a copy 51Kb |
Abstract
We propose and simulate, with a dynamic neural field model, two mechanisms underlying
inhibition of return (IOR) in the oculomotor system: sensory and motor. Reflecting sensory
adaptation (or habituation) repeated visual stimulation results in a reduction of visual input to the
superior colliculus (SC); consequently, saccades to targets which appear at previously stimulated
locations will have longer latencies than those which appear at unstimulated locations. In
contrast, the execution of a saccade results in asymmetric activation in the SC; consequently,
saccades which reverse vectors will have longer latencies than those which repeat vectors. In the
IOR literature, these two mechanisms correspond to IOR effects observed following covert
exogenous orienting and overt orienting in the absence of peripheral stimulation, respectively.
We predict that these two independent mechanisms will have additive effects; a prediction that is
confirmed in a behavioral experiment.
Item Details
Item Type: | Conference Extract |
---|---|
Keywords: | attention |
Research Division: | Psychology |
Research Group: | Cognitive and computational psychology |
Research Field: | Memory and attention |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in psychology |
UTAS Author: | Satel, J (Dr Jason Satel) |
ID Code: | 119185 |
Year Published: | 2011 |
Deposited By: | Psychology |
Deposited On: | 2017-07-27 |
Last Modified: | 2017-09-11 |
Downloads: | 0 |
Repository Staff Only: item control page