Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7289197 | Consciousness and Cognition | 2015 | 13 Pages |
Abstract
We propose a biologically plausible neuro-computational model of how the brain controls access to consciousness to explain how distractor-induced blindness originates from information processing in the cortex and basal ganglia. The model suggests that conscious perception requires reverberation of activity in cortico-subcortical loops and that basal-ganglia pathways can either allow or inhibit this reverberation. In the distractor-induced blindness paradigm, inadequate distractor-induced response tendencies are suppressed by the inhibitory 'hyperdirect' pathway of the basal ganglia. If a target follows such a distractor closely, temporal aftereffects of distractor suppression prevent target identification. The model reproduces experimental data on how delays between target color and target motion affect the probability of target detection.
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Authors
Christian Ebner, Henning Schroll, Gesche Winther, Michael Niedeggen, Fred H. Hamker,