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The attentive brain and its failures| old_uid | 11753 |
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| title | The attentive brain and its failures |
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| start_date | 2012/10/22 |
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| schedule | 11h-12h30 |
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| online | no |
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| details | Invité par Kevin O'Regan et Jacqueline Fagard |
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| summary | The relationships between spatial attention and conscious perception are currently the object of intense debate. Evidence of double dissociations between attention and consciousness casts doubt on the time-honored concept of attention as a gateway to consciousness. However, recent results from experimental psychology, neuropsychology, neurophysiology and neuroimaging studies, indicate that distinct sorts of spatial attention can have different effects on visual conscious perception. While endogenous, or top-down attention, has weak influence on subsequent conscious perception of near-threshold targets, exogenous, or bottom-up forms of spatial attention appear instead to be a necessary, although not sufficient, step in the building of reportable visual experiences. Fronto-parietal networks important for spatial attention, with peculiar inter-hemispheric differences, constitute plausible neural substrates for the interactions between exogenous spatial attention and conscious perception.
References :
- Chica AB and Bartolomeo P (2012) Attentional routes to conscious perception. Front. Psychology 3:1. doi: 10.3389/fpsyg.2012.00001
- Bartolomeo P, Thiebaut de Schotten M and Chica AB (2012) Brain networks of visuospatial attention and their disruption in visual neglect. Front. Hum. Neurosci. 6:110. doi: 10.3389/fnhum.2012.00110. |
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| responsibles | Rämä, Izard |
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