Exam 5 - 3/28 Flashcards
Schizophrenia –
Abnormalities in development of specific areas of the brain occur _________ and at birth
prenatally
Schizophrenia –
Decrease in activity in _________
dorsolateral prefrontal lobe
Schizophrenia –
- Abnormal migration of neurons in _________
temporal lobes
Schizophrenia –
- Abnormal development
These abnormalities involve incorrect migration of _________ in the hippocampus, temporal and frontal lobes during the second trimester
neurons
Schizophrenia –
- Abnormal development
These abnormalities involve incorrect migration of neurons in the _________ , temporal and _________ during the second trimester
- hippocampus
- frontal lobes
Schizophrenia –
- Abnormal development
These abnormalities involve incorrect migration of neurons in the hippocampus, temporal and frontal lobes during the _________ trimester
second
Schizophrenia –
- Abnormal development
Neurons do not migrate to _________ areas of cortex but stay in _________ layers
- outer
- deeper
Schizophrenia –
- Abnormal development
In _________ , neurons are not in the usual orderly _________
- hippocampus
- pattern
Schizophrenia –
- Abnormal development
Abnormal migration may be due to deficiency in a protein called _________ that guides _________
- Reelin
- migration
Schizophrenia –
Pruning and diminishing of grey matter happening in early _________
twenties
Schizophrenia – Treatment
_________ – schizophrenia involves excessive dopamine activity in the brain
Dopamine hypothesis
Schizophrenia – Treatment
– schizophrenia involves excessive _________ activity in the brain
dopamine
Schizophrenia – Treatment
1950s – first use of antipsychotic medication, _________ (thorazine)
chlorpromazine
Schizophrenia – Treatment
Chlorpromazine is a dopamine _________-
antagonist
Schizophrenia – Treatment
Discovery that _________ psychosis, which is very similar to the symptoms of schizophrenia, is due to _________ dopamine activity
- amphetamine
- excessive
Schizophrenia – Treatment
Schizophrenic patients have higher dopamine activity in the _________
striatum
Schizophrenia – Treatment
Efficacy of antipsychotic drugs are related to their ability to act as _________ antagonists (block dopamine activity), particularly at dopamine ___ receptors
- dopamine
- D2
Schizophrenia – Treatment
Efficacy of _________ drugs are related to their ability to act as dopamine _________ (block dopamine activity), particularly at dopamine D2 receptors
- antipsychotic
- antagonists
Schizophrenia – Treatment
chlorpromazine _________
(thorazine)
Schizophrenia – Treatment
Efficacy of antipsychotic (_________) medications are related to their ability to block dopamine receptors
neuroleptic
Schizophrenia – Treatment
–Prolonged use of antipsychotic drugs cause severe side effects
Motor effects caused by blocking dopamine receptors in the _________ and an increased sensitivity of the dopamine ___ receptors causes tardive dyskinesia (tremors and involuntary movements)
- basal ganglia
- D2
Schizophrenia – Treatment
–Prolonged use of antipsychotic drugs cause severe side effects
Motor effects caused by blocking _________ receptors in the basal ganglia and an _________ sensitivity of the dopamine D2 receptors causes tardive dyskinesia (tremors and involuntary movements)
- dopamine
- increased
Schizophrenia – Treatment
–Prolonged use of antipsychotic drugs cause severe side effects
Motor effects caused by blocking dopamine receptors in the basal ganglia and an increased sensitivity of the dopamine D2 receptors causes _________ (tremors and involuntary movements)
tardive dyskinesia
Schizophrenia – side effects
tardive dyskinesia ( _________ and _________ movements)
- tremors
- involuntary
Schizophrenia – side effects
New antipsychotic drugs – _________ antipsychotics
Less specific for dopamine D2 receptors so side effects not apparent unless high doses used
atypical
Schizophrenia – side effects
New antipsychotic drugs – atypical antipsychotics
_________ specific for dopamine D2 receptors so side effects not apparent unless _________ doses used
- Less
- high
Schizophrenia – side effects
New antipsychotic drugs – atypical antipsychotics
_____% more effective than older antipsychotic drugs
15 – 25