approaches Flashcards
define the biological approach.
biological approach views humans as biological organisms and provides biological explanations of all aspects of psychological functioning.
how do genes influence behaviour.
genes are passed down from one generation to the next. genes carry instructions for particular characteristics. how characteristics develop is partly influenced by environment
define genotype
genetic code written in an individuals dna
define phenotype
physical appearance that results from this inherited information
Name two biological structures that influence behaviour
nervous system and the brain
What does the nervous system do?
carries messages from one part of the body to another using individual nerve cells called neurons.
how does neurochemistry influence behaviour?
nerve impulses release a neurotransmitter. neurotransmitters either trigger or inhibit nerve impulses
what is an excitatory neurotransmitter?
a nerve impulse that stimulates the brain into action
what is an inhibitory neurotransmitter?
nerve impulse that calms the brain
define hormones
hormones are chemicals that are produced by endocrine glands eg the pituitary gland.
what are the four lobes in the brain?
frontal lobe
temporal lobe
parietal lobe
occipital lobe
state an evaluative point for the biological approach. method of research.
uses scientific method, highly controlled environment. other researcher are able to replicate rearward studies. adds validity if research can be reproduced adds validity.
state an evaluative point of the biological approach. application
application of the biological research in the real world. research into the role of neurochemical imbalance in depression has led to effective drug treatment.
state a evaluative point for the biological approach. evolutionary.
a problem for evolutionary explanations is that human behaviour can evolve through either genetic or cultural routes, the biological explanation may have limited explanatory power.
state an evaluative point for the biological approach. dangers of genetic explanations .
rearward suggesting a genetic basis for criminal behaviour has led to concerns about how this information might be used. could lead to discrimination
what is the basic assumption of the psychodynamic approach.
behaviour is determined by psychological factors, people are brown with basic instincts and needs and that behaviour is in large part controlled by the unconscious mind.
define the id
operates solely in the unconscious. contains the libido. demands immediate gratification regardless of circumstances.
define the ego
mediated between the impulsive demands of the id and the moralistic demands of the superego.
define the superego.
internalisation of societal rules, determines which behaviour is acceptable and causes feelings of guilt when rules are broken
what are defence mechanisms ?
if an individual is faced with a situation you are unable to deal with defence mechanisms may be triggered, these stop the individuals becoming aware of the unpleasant thoughts.