Number Coding in Association Cortex of the Cat

Science  10 Apr 1970:
Vol. 168, Issue 3928, pp. 271-273
DOI: 10.1126/science.168.3928.271


In electrophysiological investigations of single neurons in cortical association response areas of the cat, cells have been encountered that appear to code the property of number. In a sequence of stimulus presentations, these cells characteristically discharge to a particular numbered stimulus in the series. This effect is independent of stimulus modality, intensity, and interstimulus interval; thus, the cells seem to be responding to the number of stimulus presentations.