IMH Topic 2 - The medical model Flashcards
What is the biochemical explanation for depression?
An imbalance of chemicals in the brain
What neurotransmitter is linked to depression?
Serotonin
What do SSRIs do?
Increase the effect of serotonin
How do SSRIs work?
By inhibiting the reuptake of serotonin
What neurotransmitter is believed to play a role in schizophrenia?
Dopamine
What is an overactive dopamine system linked to?
Symptoms of schizophrenia
How do anti-psychotic drugs work?
By blocking dopamine receptors
What is the aim of biochemical treatments?
Restoring normal levels of neurotransmitters
What is the genetic explanation for mental illness?
Mental illness can be passed from parent to child
What is the evolutionary explanation for phobias?
Inherited traits that gave survival advantages
What evidence supports the evolutionary explanation for phobias?
Ohman’s study on conditioned fear responses
What brain abnormalities are linked to schizophrenia?
Enlarged lateral ventricles and thinner para hippocampal cortices
What brain abnormalities are linked to depression?
Smaller hippocampal volume
What hormone is linked to hippocampal cell destruction in depression?
Cortisol
What are the nature vs. nurture considerations for biochemical explanations?
Chemical imbalances may be an expression of genetic basis
What are the nature vs. nurture considerations for genetic explanations?
Both genetic and environmental factors play a role
What are the nature vs. nurture considerations for brain abnormality explanations?
Brain abnormalities can be congenital or environmentally caused
What are the individual vs. situational considerations for biochemical explanations?
Drug therapy supports individual explanations
What are the individual vs. situational considerations for genetic explanations?
Genetic inheritance is primary
What are the individual vs. situational considerations for brain abnormality explanations?
Environments affect brain structure
What is the usefulness of biochemical explanations?
Drug therapy to restore neurotransmitter balance
What is the usefulness of genetic explanations?
Currently limited
What is the usefulness of brain abnormality explanations?
Can lead to drug therapy when linked to biochemical explanations