PSYA01H3 Chapter 3: Biological Psychology
Document Summary
Chapter 3: biological psychology - table of contents. 3. 1 genetic and evolutionary perspectives on behavior 2. Behavioural genetics: twin and adoption studies 3. 3. 2 - how the nervous system works: cells and neurotransmitters 5. The neuron"s electrical system: resting and action potentials 6. The chemical messengers: neurotransmitters and hormones 6. 3. 3 - structure and organization of the nervous system 9. Left brain, right brain: hemispheric specialization 11. 3. 4 - windows to the brain: measuring and observing brain activity 12. The amount of genetic variability within the group being studied. The variability in the environment that members of groups might be exposed to. It affects how we behave biologically and psychologically. It is not continuous: no need to change if perfectly adapted to the environment. Evolution, the brain and behaviour: homo habilis (the handy man), about 2. 5 million years ago, brain 50% larger than ancestors, the first to use stone tools, survived for 800000 years, homo erectus (upright, erect-man), approx.
