The question about whether neurons perform computations came around several times on twitter, lately and there were at least two spin-off blog posts that came from these discussions:
Is the idea that neurons perform ‘computations’ in any way meaningful? from Adam Calhoun (@neuroecology) and then
The Diversity of Computation
So far so good. It appears that basically there is little discussion about whether neurons compute things. However, a new conversation between me and @mnxmnkmnd came up as I realized that for him it appears to be close to irrelevant whether you call a neuron a computer or not and you don’t learn more from emulating the computational function of a neuron than from simulating the thing the same way you would from simulating fluid dynamics or a pendulum.
So, here is my new attempt to explain, why I think it is important and meaningful to think of neurons as computing agents rather than simply physical phenomena.