Biological treatments

Question 1

Kapur

Answer 1

• 60-75% of D2 receptors were blocked in the mesolimbic pathway

Question 2

Davis et al

Answer 2

• analysed results of 29 studies (with 3519 patients)
• relapse occurred in 55% of schizophrenic patients whose antipsychotic drugs were replaced by a placebo
• 19% relapsed when they were still taking their medication

Question 3

Ross and Read

Answer 3

• figures indicate 45% of schizophrenic patients taking placebos did actually benefit from this

Question 4

Elesser et al

Answer 4

• antipsychotics should not be thought of as a cure
• they eliminate some symptoms and make psychotic experience less intense and draining but they do not help everyone and rarely remove all symptoms
• typical: 65% effective
• atypical: 85% effective