CIS 140 Lecture Notes - Lecture 7: Long-Term Potentiation, Reinforcement, Long-Term Memory
20 Dec 2018
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Understand at the lvl of algorithms/representation used and single neurons/brain modules. Small molecules synthesized in neurons, some are also hormones. Each neurotransmitter often has multiple diff functions. One neuron can release diff neurotransmitters (sometimes?) Neuron connectivity also changes: up to 80% of neurons within the forming nervous sys die- lets neurons establish appropriate connections- is a good thing (better associations, new neuron connections can be established learning: types, time scales. Different mechanisms for fast and slow learning. Potentiation- rat- light/food- neurotransmitters for those signals released at the same time, get associated, and later, when light is flashed, signal same as when food given- two inputs. Habituation- food over and over again, get used to it- one input. When you remember smth, seems that you briefly forget it, and then learn it again. Memory enhancing drugs, mostly have failed clinical trials. Mice missing one kind of ion channel found in the hippocampus are smarter- Better at learning to run through mazes-
