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Motion coherence and conjunction search: implications for guided search theory

journal contribution
posted on 2023-06-07, 18:37 authored by Jon Driver, Peter McLeod, Zoltan DienesZoltan Dienes
Feature integration theory has recently been revised with two proposals that visual conjunction search can be parallel under some circumstances—either because items with nontarget features are inhibited, or because items with target features are excited. We examined whether excitatory or inhibitory guidance controlled conjunction search for an X oscillating in one direction among Os oscillating in that direction and Xs oscillating in another. Search was affected by whether items oscillated in phase with each other, and it was exceptionally difficult when items with target motion moved out of phase with each otherand items with nontarget motion moved out of phase. The results suggest that conjunction search can be guided both by excitation of target features and by inhibition of nontarget features.


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  • Published


Perception and Psychophysics



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  • Psychology Publications

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