[jamest (OP)]

David writes, 'How much do the senses take up in brain capacity and what sense occupies the largest part of the brain (I would guess it would be sight?)'

[paul cotter]

I think you have the answer already, the visual cortex occupies quite a lot of the brain.

[alancalverd]

I was under the impression that bipedal motion actually requires most processing power. Getting a bipedal robot to stand still is remarkably difficult, and possibly more complicated than getting it to run!

[Petrochemicals]

7xjg6df74on71.png (184.91 kB . 5504x5183 - viewed 1132 times)

Brain body size gives a rough correlation, as you can see humans are outliers

[evan_au]

A very visual way of representing brainpower consumption is with the "cortical homunculus", which maps parts of the body onto the part of the brain which senses and/or controls that part of the body.

However, this seems to be taken as a slice through the brain, roughly from ear to ear; in this slice, the hands represent a large fraction of the brain. This mapping does not include the large visual cortex, which lies at the rear of the brain.
See: https://en.wikipedia.org/wiki/Cortical_homunculus