Biological Approach Flashcards
(7 cards)
what is localisation of function
specific parts of the brain are responsible for specific/certain functions
What is the Biological approach?
Our behaviour and thinking is determined by our biological
factors (e.g. genetics, DNA structure
UNDERSTANDING HUMAN BEHAVIOUR
What are some examples of Biological research methods?
Twin studies (MZ and DZ)
Family studies (inheritance)
Adoption studies
what are genotypes
genetic codes in DNA for characteristics e,g, genetic makeup
what are phenotypes
physical expressions of the genotype e.g. eyes
BIOLOGICAL APPROACH AO1
biological structures include the endocrine system. this controls other glands and releases hormones. the adrenal gland releases adrenaline as part of flight or fight. localisation of function is where specific parts of the brain control specific functions . for example the frontal lobe is important for decision making the temporal lobe is important for auditory information. the paterial lobe is important for muscle movement and occipital for visual info
neurotransmitters are released at the synapse to enable communication between 2 neurones. synaptic process is where impulses reach the synaptic gap and release neurotransmitters from vesicles which bind to receptors which may send an impulse
genotypes are the genetic codes in DNA and phenotypes are expressions of the genotype e.g. eye colour
Evolution - natural selection
ALL AO3 FOR BIOLOGICAL APPROACH
PHINEAS GAGE RESEARCH
iron red went through his left eye and his left frontal lobe was damaged. he had a different personality he was inappropiate/swearing/lack of self control which suggests that the frontal lobe is important for decision making and personality characteristics HOWEVER (LIMITATION COUNTERPOINT) it cant be generalised to other people because what happened to Phinaues is very rare therefore explanations for human behavior can be limited
Highly scientific
this is due to the fMRI scanners that measure blood flow which make it possible to measure neurone processes which is a advantage because it makes research more scientific and highly controlled which allows it to be establish cause and effect and also having standarised procedures. this makes it easily to be replicated
used animals (evolution)
research into brain animals to learn human behaviour. this is a disadvantage because human behaviour are more complex in terms of thinking, consciousness, problem solving as humans have a more cognitive complex system. this means that animal research cant be generalised to human research making the behaviourst approach more limited
application to real life
develops drugs which can help to treat conditions like OCD and depression. these therapies such as SSRIs reduce serotnonin uptake and target neurochemical processes. millions of people have benefited from these drugs
deterministic