Table 1. Distribution of modality-specific and multisensory neurons in the coarse-grain analysis of sensory neocortex.
| No. of neurons
|
||||||||
|---|---|---|---|---|---|---|---|---|
| Location | V | A | S | VA | VS | AS | VAS | Total |
| Cortical domain | ||||||||
| Occipital (visual) | 125 | 6 | 6 | 1 | 1 | 0 | 0 | 139 |
| Temporal (auditory) | 8 | 105 | 11 | 1 | 0 | 1 | 0 | 126 |
| Parietal (somatosensory) | 11 | 8 | 167 | 0 | 1 | 1 | 0 | 188 |
| Total | 144 | 119 | 184 | 2 | 2 | 2 | 0 | 453 |
| Border or transition region | ||||||||
| Occipital/temporal | 25 | 21 | 0 | 8 | 0 | 0 | 2 | 56 |
| Temporal/parietal | 0 | 14 | 25 | 0 | 0 | 6 | 1 | 46 |
| Occipital/parietal | 19 | 0 | 31 | 2 | 9 | 0 | 3 | 64 |
| Rostral parietal | 2 | 4 | 106 | 8 | 27 | 4 | 3 | 154 |
| Total | 46 | 39 | 162 | 18 | 36 | 10 | 9 | 320 |
At the top are tabulated the incidence of neuronal types that could be reliably ascribed to one of the three principle cortical domains. At the bottom is the distribution of neurons in the four transitional zones between the large modality-specific representations. V, visual; A, auditory; S, somatosensory.