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Humans do not possess a visual sense of approximate number| old_uid | 11299 |
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| title | Humans do not possess a visual sense of approximate number |
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| start_date | 2012/04/23 |
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| schedule | 11h-12h30 |
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| online | no |
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| details | Invitée par l'équipe Vision |
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| summary | There is current interest in how we are able to make an estimate of the approximate number of objects in a scene: existing evidence suggests that we may have a dedicated "visual number" sense that may even be linked to mathematical ability. In this talk I will present evidence from my lab that, contrary to this position, human sense of number is not independent of our sense of space/distance and that our ability to estimate one depends on the other. This implicates a common perceptual metric, and we describe one candidate based on the relative output of high and low spatial frequency-tuned filters (emulating the operation of visual neurons in the geniculate and primary visual areas). This simple model can explain a range of perceptual phenomena associated with approximate number estimation. |
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| responsibles | Rämä |
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