September 2015
Volume 15, Issue 12
Free
Vision Sciences Society Annual Meeting Abstract  |   September 2015
Features and objects in the physiology of attention
Author Affiliations
  • Stefan Treue
    University of Göttingen
Journal of Vision September 2015, Vol.15, 1393. doi:10.1167/15.12.1393
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      Stefan Treue; Features and objects in the physiology of attention. Journal of Vision 2015;15(12):1393. doi: 10.1167/15.12.1393.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Recording from single neurons in the visual cortex of rhesus monkeys trained to perform complex attention tasks has been a highly successful approach to investigate the influence of spatial and feature-based attention on sensory information processing. For object-based attention this has been much more difficult. The presentation will explain this difference and give examples of studies of the neural correlate of object-based attention. Because object-based attention is characterized by the spread of attention across multiple features of a given object the presentation will also address studies of feature-based attention involving more than one feature. The latter will demonstrate that feature-based attentional modulation in extrastriate cortex seems to be restricted to those features for which a given neuron is genuinely, rather than accidentally, tuned.

The data show a system of attentional modulation that combines spatial, feature-based and object-based attention and that seems designed to create an integrated saliency map where the perceptual strength of a given stimulus represents the combination of its sensory strength with the behavioral relevance the system attributes to it.

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