PSYCH 3B03 Lecture Notes - Lecture 3: Synaptic Pruning, Adverse Drug Reaction, Malnutrition
7 Dec 2018
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Document Summary
16 years when adult levels are reached: changes in synaptic density occur at different rates in different areas of the brain, ex. visual cortices peak early; frontal cortices peak late. It is the interaction with experience that results in the consolidation of circuits and the pruning of unnecessary synapses. Genetic material is contained in all cells. Single gene inheritance: dominant gene always gonna be presented in your phenotype, recessive gene, proband case person we are studying that shows the abnormal. Multiple gene inheritance behaviour: heritability, shared and nonshared environmental influences. Operant conditioning recognizes that positive consequences of a behaviour will strengthen it and a negative consequence will weaken it. Punishment decreases the behaviour: taking something away. Shaping rewards close approximations to establish behaviour. Albert bandura identified that problem behaviours can be acquired through observation of a model. To learn a new behaviour pattern by imitating the performance of someone else.
