Functional organization of excitatory synaptic strength in primary visual cortex

Lee Cossell, Maria Florencia Iacaruso, Dylan R. Muir, Rachael Houlton, Elie N. Sader, Ho Ko, Sonja B. Hofer and Thomas D. Mrsic-Flogel ()
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Lee Cossell: Physiology and Pharmacology, University College London, 21 University Street, London WC1E 6DE, UK
Maria Florencia Iacaruso: Physiology and Pharmacology, University College London, 21 University Street, London WC1E 6DE, UK
Dylan R. Muir: Biozentrum, University of Basel, Klingelbergstrasse 50/70, CH - 4056 Basel, Switzerland
Rachael Houlton: Physiology and Pharmacology, University College London, 21 University Street, London WC1E 6DE, UK
Elie N. Sader: Physiology and Pharmacology, University College London, 21 University Street, London WC1E 6DE, UK
Ho Ko: Physiology and Pharmacology, University College London, 21 University Street, London WC1E 6DE, UK
Sonja B. Hofer: Physiology and Pharmacology, University College London, 21 University Street, London WC1E 6DE, UK
Thomas D. Mrsic-Flogel: Physiology and Pharmacology, University College London, 21 University Street, London WC1E 6DE, UK

Nature, 2015, vol. 518, issue 7539, 399-403

Abstract: In complex networks of the cerebral cortex, the majority of connections are weak and only a minority strong, but it is not known why; here the authors show that excitatory neurons in primary visual cortex follow a rule by which strong connections are sparse and occur between neurons with correlated responses to visual stimuli, whereas only weak connections link neurons with uncorrelated responses.

Date: 2015
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DOI: 10.1038/nature14182

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