APPROACHES ( THE BIOLOGICAL APPROACH ) Flashcards
Outline the biological approach
the biological approach assumes that all human behaviour has a biological origins
outline the key elements of the Bio Approach
genes , the nervous system , neurochemistry , evolution
Briefly outline the divisions of the central nervous system particularly the brain
Parietal lobe is used for calculations, learned skills and gestures
Occipital lobe is used for vision
Cerebellum is used for motion related activities
Frontal lobe is used for decision making and language
Temporal lobe is used for memory and language
what is the role of neurochemistry
recognizing the role of chemicals in determining behaviour
FILL IN THE GAPS
At the ____ signals are sent between the ____ by chemicals called ____ . Imbalances are associated with ____ behaviour eg. Low serotonin leads to ___ and ___ whereas high ___ leads to development of Schizophrenia
- synapses
- neurons
- neurotransmitters
- atypical
- depression and aggression
- dopamine
What is a genotype
Genotype is the inherited genetic material that provides code/instruction for the living organism
what is a phenotype
The phenotype is how the genetically inherited code is expressed , often an observable characteristic. The result of the intercation between the genotype and the environment
what is the influence of genes on behaviour
Our genes predispose us towards particular physical and psychological traits and characteristics , which then influence our behaviour .
How does evolution influence behaviour ? and evidence
Genes are the mechanism through which evolution takes place. Natural selection ensures that characteristics proving an evolutionary advantage are passed from one gen to the next ( eg buss 1994 sex differences in partners)
Give one research example showing support for the influence of genes on behaviour
Research in this area compares concordance rates of MZ and DZ Twins . MZ twins have increased CR of developing OCD ( 68%) whereas DZ twins had 31%
Give one research example showing a limitation for the influence of genes on behaviour
Concordance rates for MZ twins are not 100% , this also indicates that environmental factors contribute to the development of OCD
What is the influence of Bio strictures on behaviour / research to support
Bio structures such as the brain and nervous system influence behaviours as most decision making originates there. Supporting evidence phineas gage damaged left frontal lobe led to change in personality. PET cans showing different brain activity when episodic ( right prefrontal cortex ) semantic ( left pre frontal cortex) memories are thought of.
