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Information encoding in the inferior temporal visual cortex: contributions of the firing rates and the correlations between the firing of neurons

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Citation

Rolls, E., Aggelopoulos, N., Franco, L., & Treves, A. (2004). Information encoding in the inferior temporal visual cortex: contributions of the firing rates and the correlations between the firing of neurons. Biological Cybernetics, 90(1), 19-32. doi:10.1007/s00422-003-0451-5.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-DA33-2
Abstract
The encoding of information by populations of neurons in the macaque inferior temporal cortex was analyzed using quantitative information-theoretic approaches. It was shown that almost all the information about which of 20 stimuli had been shown in a visual fixation task was present in the number of spikes emitted by each neuron, with stimulus-dependent cross-correlation effects adding for most sets of simultaneously recorded neurons almost no additional information. It was also found that the redundancy between the simultaneously recorded neurons was low, approximately 4 to 10. Consistent with this, a decoding procedure applied to a population of neurons showed that the information increases approximately linearly with the number of cells in the population.