Approaches Flashcards
Who is Wilhelm Wundt
Viewed as one of the founders of psychology and believed all aspects of behaviour and the mind could be studied scientifically through introspection
What is introspection
Means ‘looking into’ or the examination of ones thoughts
What is the biological approach
All behaviour is driven by physiological factors such as genetic factors, biological structures and neurochemistry
Define evolution
The gradual change within a species over several generations in response to environmental pressures
Define natural selection
The process where inherited characteristics that enhance survival are passed onto the next generation
Define adaptive
Trait to boost survival and reproductive success
What did Darwin suggest about evolution
Only adaptive behaviour will be naturally selected through generations
What did Seligman suggest about the biological approach
That there was a biological preparedness to phobias through innate tendencies to harmful phobias
What is a genotype
Genetic constitution of an individual (humans are 99.9% the same)
What is a phenotype
The result of your genetic material interacting with your environment to form a behaviour
What is PKU in relation to the biological approach
Rare disorder which causes severe learning difficulties if left, but if detected early enough, child can avoid proteins on diet and develop normally
What approach is best taken to the biological approach
Interactionist - nature (biology) or nurture (environment)
Why does studying twins increase reliability of research into genetics
MZ twins - 100% similar, DZ only 50% (genetically), so if MZ is higher concordance rate, can suggest its due to genetics
What is the twin study by Nestadt
Concordance rate of 67% for MZ (identical) twins and 31% for DZ (fraternal) twins
What is neuroanatomy
Mapping relationship between various brain areas and their functions
What was Raine et al’s study into neuroanatomy
PET scans to identify several areas of the brain in murderers which differed to matched controls -
Reduced activity in prefrontal cortex, amygdala and hippocampus
Abnormal asymmetries, reduced activity on left hemisphere and greater on right
What is Wernicke’s area
Processing and comprehending language - top of left temporal lobe. If damaged can still speak but struggle to understand
What is Broca’s area
Speech production - left frontal lobe. If damaged simple non fluent grammatical structure
What is an example of brain plasticity
Maguire et al - studied brains of London taxi drivers through MRI - found more grey matter in posterior hippocampus than control group. Area associated to spatial and navigational skills
What is neurochemistry
The chemical processes that take place in the brain - second option to inherited disorders
What are neurotransmitters
Chemical messengers released by pre - synaptic neuron to post synaptic neuron when they connect at a synapse. If correct receptors, NT dock via lock and key
What are the 3 key neurotransmitters
GABA, adrenaline, serotonin