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Attention, spatial representation, and visual neglect: simulating emergent attention and spatial memory in the selective attention for identification model (SAIM).

Dietmar Heinke·Glyn W Humphreys
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Abstract

The selective attention for identification model (SAIM) is presented. This uses a spatial window to select visual information for recognition, binding parts to objects and generating translation-invariant recognition. The model provides a qualitative account of both normal and disordered attention. Simulations of normal attention demonstrate 2-object costs and effects of object familiarity on selection, global precedence, spatial cueing, and inhibition of return. When lesioned, SAIM demonstrated either view- or object-centered neglect or spatial extinction, depending on the type and extent of lesion. The model provides a framework to unify (a) object- and space-based theories of normal selection, (b) dissociations within the syndrome of unilateral neglect, and (c) attentional and representational accounts of neglect.

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AttentionCuesHumansMemoryModels, PsychologicalNeuropsychological TestsPerceptual DisordersReaction TimeSpace PerceptionVisual FieldsJournal ArticleResearch Support, Non-U.S. Gov't

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Dietmar Heinke, Glyn W Humphreys. 2003. Attention, spatial representation, and visual neglect: simulating emergent attention and spatial memory in the selective attention for identification model (SAIM).. https://doi.org/10.1037/0033-295x.110.1.29

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