Using biologically plausible neural models to specify the functional and neural mechanisms of visual search

Humphreys, Glyn W. and Allen, Harriet A. and Mavritsaki, Eirini (2009) Using biologically plausible neural models to specify the functional and neural mechanisms of visual search. Progress in Brain Research, 176 . pp. 135-148. ISSN 1875-7855

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Abstract

We review research from our laboratory that attempts to pull apart the functional and neural mechanisms of visual search using converging, inter-disciplinary evidence from experimental studies with normal participants, neuropsychological studies with brain lesioned patients, functional brain imaging and computational modelling. The work suggests that search is determined by excitatory mechanisms that support the selection of target stimuli, and inhibitory mechanisms that suppress irrelevant distractors. These mechanisms operate through separable though overlapping neural circuits which can be functionally decomposed by imposing model-based analyses on brain imaging data. The chapter highlights the need for inter-disciplinary research for understanding complex cognitive processes at several levels.

Item Type: Article
Keywords: Visual search; Visual attention; Computational modelling; Functional brain imaging
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Psychology
Identification Number: 10.1016/S0079-6123(09)17609-4
Depositing User: Allen, Harriet
Date Deposited: 27 Jul 2017 10:06
Last Modified: 12 Oct 2017 23:29
URI: http://eprints.nottingham.ac.uk/id/eprint/44445

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