3 ms·
do you know about the dopamine reward error hypothesis? https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6721851/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC67218
by cmrx64 6y ago
do you know about the dopamine reward error hypothesis? https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6721851/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6721851/ is it so wrong? what does cognitive psychology have to say about how these neurons work? this is a lot more recent than the 40s and behaviorism.
- bra-ket 6y agodopamine 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 :)