# Show Reference: "Neural Mechanisms of Selective Visual Attention"

Neural Mechanisms of Selective Visual Attention Annual Review of Neuroscience, Vol. 18, No. 1. (1995), pp. 193-222, doi:10.1146/annurev.ne.18.030195.001205 by Robert Desimone, John Duncan
@article{desimone-and-duncan-1995,
address = {Laboratory of Neuropsychology, NIMH, Bethesda, Maryland 20892, USA.},
author = {Desimone, Robert and Duncan, John},
doi = {10.1146/annurev.ne.18.030195.001205},
issn = {0147-006X},
journal = {Annual Review of Neuroscience},
keywords = {attention, biology},
number = {1},
pages = {193--222},
pmid = {7605061},
posted-at = {2013-04-18 10:05:53},
priority = {2},
title = {Neural Mechanisms of Selective Visual Attention},
url = {http://dx.doi.org/10.1146/annurev.ne.18.030195.001205},
volume = {18},
year = {1995}
}


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Traditionally, visual attention is subdivided into feature-based attention and spatial attention. However, spatial is arguably only one cue out of possibly a number of cues and possibly only a special case.

Visual attention is influenced both by local and global saliency, ie. bottom-up processes, and by semantics, ie. top-down processes.

Low-level (dis)similarity is important for top-down visual search.

The biased competition theory of visual attention explains attention as the effect of low-level stimuli competing with each other for resources—representation and processing. According to this theory, higher-level processes/brain regions bias this competition.

Desimone and Duncan argue that spatial information about a search target can be part of the attentional template fitted against all potential targets in the visual display as any other object feature.