outline one biological explanation for schizophrenia (4 marks)

One biological explanation for Schizophrenia is the Dopamine hypothesis. This proposes the idea that here is an excess amount of D2 receptors that causes the brain to release more dopamine as it believes more is needed. In turn, an excess amount of dopamine firing and binding takes place within the mesolimbic pathway of the brain. The increase in this specific hormone causes the positive symptoms associated with schizophrenia. For example, hallucinations and delusions of grandeur. This has been proven in studies where drugs that decrease dopamine levels lead to a decrease in positive symptoms in Schizophrenic people.

MK
Answered by Mariyum K. Psychology tutor

6084 Views

See similar Psychology A Level tutors

Related Psychology A Level answers

All answers ▸

Outline 2 variables which may impact obedience.


What are some advantages and disadvantages of using observations as a research method?


Outline two assumptions of the Biological Approach to understanding human behaviour.


Describe and evaluate the procedure of Zimbardo’s study into social roles.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences