PSYCH 2TT3 Lecture Notes - Aplysia, Withdrawal Reflex, Drug Tolerance
12 Jun 2013
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Document Summary
Behaviour can be shaped by innate activity or learning. Learning is the ability to acquire a neuronal representation of new information. An individual may use that information to determine subsequent behaviour. Learning is represented on a neuronal scale. Donald hebb hebb"s law: first describe learning on a synaptic scale. Idea that cells that fire together wire together; cells that don"t won"t. Learning depends on the persistent change in connectivity in the brain. A stimulus from a neuron produces a typical response from the neuron to which it connects. If an input is large enough it will generate a response = action potential, producing stereotype pattern. We can record the magnitude of the curve and show that it increases or decreases based on how well it is connected. If the stimulus reliably produces a response, the strength of the physiological response increases. Over several repeated parings there is a change in the magnitude of an action potential response.
