The CEU Department of Cognitive Science cordially invites you to its talk as part of the
Departmental Colloquium series
by
Andreas Nieder (Institute of Neurobiology, Dept. of Biology, University of Tübingen,
Germany)
Date: Wednesday, July 5th, 2017 - 17:00-18:30
Host: Barbara Pomiechowska
Coding of numerical quantity in the primate brain,
with special reference to zero.
Andreas Nieder
Institute of Neurobiology, Dept. of Biology, University of Tübingen, Germany
Findings in animal cognition, developmental psychology and anthropology indicate that the
ability to deal with numbers is rooted in nonverbal biological primitives. Humans and
non-human primates share an elemental quantification system that resides in a dedicated
neural network in the parietal and frontal lobes. In this cortical network, 'number
neurons' encode the number of elements in a set, its 'numerosity',
irrespective of stimulus appearance across sensory-motor systems, and from both spatial
and temporal presentation arrays. While the coding of the number of items in a set is
already abstract and demanding, representing empty sets, 'nothing', as a relevant
and quantitative category is even more challenging. For that reason, the empty set and the
zero are latecomers both in human history and ontogeny. I will argue that precursors of
zero are already present in the behavior and neuronal responses of nonhuman primates. Our
single-neuron data suggest a parieto-frontal processing hierarchy along which empty sets
are steadily detached from visual properties and gradually positioned in a numerical
continuum. These findings elucidate not only how the brain encodes the quantity of
countable items, but also how it transforms 'nothing' into an abstract
quantitative category, 'zero'.
Location: Department of Cognitive Science, CEU, Oktober 6 street 7, room 101.
See more at:
https://cognitivescience.ceu.edu/events/2017-07-05/departmental-colloquium-…
We are looking forward to see you there!
Cognitive Science Events at CEU:
http://cognitivescience.ceu.edu/events
Györgyné Finta (Réka)
Department Coordinator
~~~~~~~~~~~~~~~~~~~~~~~~
Central European University
Department of Cognitive Science
H-1051 Budapest
Oktober 6 utca 7.
tel: (36-1) 887-5138
fax: (36-1) 887-5010
http://www.ceu.edu
http://cognitivescience.ceu.edu
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