Neurons can carry more than one signal at a time: Study sheds light on how the


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Neurons can carry more than one signal at a time: Study sheds light on how the…:


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Interesting read. The neurons they looked at were in the inferior colliculus so they weren’t neocortical, but the paper has a particular note in their results section:

“Indeed, IC dual-sound responses do not generally appear to sum the responses to the component single sounds. Using an analysis similar to that of 28, dual-sound responses were converted to Z-scores relative to either the sum or the average of the corresponding single-sound responses (see Methods). For 81% of the tested triplets, the Z-score values relative to the average were smaller than those relative to the sum, indicating that the responses more closely resembled averaging (Fig. 1d, see also Supplementary Figure 2 and 3)”