This looks like a lateral inhibition effect running on biochemical means that are persistent compared to the transient electrochemical phenomena of classic neuronal lateral inhibition. The latter does lots of signal processing in visual and other systems. [1]
Study reveals how, when a synapse strengthens, its neighbors weaken
31–40 of 46 posts
Re: Study reveals how, when a synapse strengthens, its neighbors weaken
#32Re: Study reveals how, when a synapse strengthens, its neighbors weaken
#33Re: Study reveals how, when a synapse strengthens, its neighbors weaken
#34Earlier quoted context omitted.
Amen to that, we are starting to get some of the groundwork but are far far away from a “standard model”, neuroscientists,psychiatrists and AI developers oversell their understanding in order to keep their jobs and funding.
I know of no psychologist or neuroscientist who even try for a 'standard model' level of understanding of brain function.
Re: Study reveals how, when a synapse strengthens, its neighbors weaken
#35Re: Study reveals how, when a synapse strengthens, its neighbors weaken
#36So this is how Eg brainwashing works? Repeating a message strengthens the new pathways until the old connections are too weak to fire?
Re: Study reveals how, when a synapse strengthens, its neighbors weaken
#37Earlier quoted context omitted.
I'm still wondering about the natural equivalent of back-propagation.
Isn't that mostly a supervised learning technique? Maybe the larger question is whether learning in the brain is better described as unsupervised or supervised.
Re: Study reveals how, when a synapse strengthens, its neighbors weaken
#38My naive take on this is that it makes biologically sense to keep net expected electrical impulses approximately the same before and after strengthening. At the end of the day the brain has energy constraints. This can-be/is done functionally in ANNs but achieves a different end (avoids over-fitting) but doesn't reducing energy(compute) expenditure in dense ANNs since activation and non-activation is computed in expe…
Re: Study reveals how, when a synapse strengthens, its neighbors weaken
#39Earlier quoted context omitted.
Isn't that mostly a supervised learning technique? Maybe the larger question is whether learning in the brain is better described as unsupervised or supervised.
I don't know how babies learn to initially use words but after that entails 99% supervised learning through school IMO nowadays. I would even argue that most new economic growth is the also the result of general supervised learning (aka, learning from others because the wealth of human knowledge is way more than anyone can learn in a million lifetimes and so the economic growth comes from continuously combining new i…
Re: Study reveals how, when a synapse strengthens, its neighbors weaken
#40So this is how Eg brainwashing works? Repeating a message strengthens the new pathways until the old connections are too weak to fire?