3 ms·
dopamine rewards operate on a different time scale vs. that required by these error correction models. I don't remember the exact paper, will need to look it up
by bra-ket 6y ago
dopamine rewards operate on a different time scale vs. that required by these error correction models. I don't remember the exact paper, will need to look it up, but it was orders of magnitude difference in response times.
Edit: for authoritative reference on biologically-plausible learning see anything by Edmund Rolls [1]. He explicitly stated in his recent book [2] that something like back-propagation, or similar error correction mechanisms have no supporting evidence in experimental data collected so far
[1] https://www.oxcns.org/profile.html https://www.oxcns.org/profile.html
[2] https://www.amazon.com/Cerebral-Cortex-Principles-Edmund-Rolls/dp/0198820348/ https://www.amazon.com/Cerebral-Cortex-Principles-Edmund-Rol...
- cmrx64 6y agothanks for the link, it's been a lovely rabbit hole :)