Please enable JavaScript.
Coggle requires JavaScript to display documents.
Biological approach - Coggle Diagram
Biological approach
-
- believes - everything psychological is at first biological
- genes are important in understanding behaviour
- interested in looking at how behaviour can be inherited / passed on
- interested in studying twins to find evidence for genetic explanations for behaviour
- interested in looking at role of brain chemistry & hormones on behaviour
- consider tole that evolution might play in explaining behaviours - looking at behaviours that might have been adapted for ancestors to explain behaviour today
-
-
-
-
-
-
-
cerebrum
- 85% total mass of brain
- outer surface of cerebrum =
cortex
- 'higher order' functions
- frontal lobe -
speech, thought & learning
- Parietal lobes -
sensory info
- touch, temp, pain
- Temporal lobes -
hearing & memory
- Occipital lobes -
visual info
-
- compromised of several connected systems:
- CNS - comprises
brain & spinal cord
- PNS -
comprises somatic * autonomic nervous system
- aspects of behaviour under neuronal control - breathing, eating, sexual behaviour
-
- nerve impulse reaches end of one neuron chemical called a neurotransmitter realeased
- travels to next neuron along a synapse
-
Excitatory neurotransmitters
- trigger nerve impulses in receiving neuron & stimulate brain into action
-
Inhibitory neurotransmitters
- inhibit nerve impulses to calm brain & balance mood
-
-
- chemicals produced by endocrine glands e.g. pituitary gland
- secreted directly in bloodstream
- causes physiological reaction in cell
-
-
-
-
- BP's believe - psychological characteristics were adaptive - intelligence & aggression.
- aggression = widespread in animal behaviour - seen to be adaptive as it promotes survival