Question

Question 4 2 pts Anna's brother has been diagnosed with schizophrenia. The whole family participates in a project to help clinicians identify screening procedures. Which behavioral task shows abnormal results for a majority of patients with schizophrenia and close to half of their unaffected relatives? O Forced-swim paradigm task Eye tracking of smooth pursuit movement task Signal detection task O Visual object recognition task Question 5 2 pts Which dopamine receptor is associated with positive symptoms of schizophrenia? OD2 OD4 D5 O D3 OD1

Answer 1

4)Eye tracking of smooth pursuit movement task.

Saccadic abnormalities are a neurological indicator of schizophrenia.This task provides information .Schizophrenic patients are incompetent in this ability to track objects moving slowly accurately with their eyes.As a result they use fast eye movements to track the object.This is a determiner of schizophrenic symptoms.

5)D2

The hyperactivity of the dopamine D2 receptor causes neurotransmission in subcortical regions of the brain which then leads to positive symptoms ot schizophrenia in a person.