Carlsson et al. (2000) argued that the classical dopamine hypothesis of schizophrenia was oversimplified.
Explain how Carlsson et al. (2000) used the relationship between glutamate and dopamine to account for both positive and negative symptoms, referencing the specific biological mechanisms (such as the GABAergic 'brake') that regulate these neurotransmitters.
18 exam-style questions on Edexcel A Level Psychology Studies, covering Classic study: Rosenhan (1973), Contemporary study (schizophrenia): Carlsson et al., Contemporary study (depression): Kroenke et al., Contemporary study (depression): Williams et al., Contemporary study (anorexia): Scott-Van Zeeland et al., Contemporary study (anorexia): Guardia et al., Contemporary study (OCD): Masellis et al., and Contemporary study (OCD): POTS team / March et al.. Each one has a worked solution and a mark scheme showing where the marks go.