A researcher uses two computer models of dopaminergic synapses in a brain pathway involved in processing sound and speech. Both models run for the same length of time.
| Model | Electrical impulses reaching the axon terminal in 10 seconds | Mean dopamine cleared within 0.1 seconds of release (%) | Mean dopamine receptors occupied during the simulation (%) |
|---|---|---|---|
| L | 42 | 82 | 24 |
| M | 86 | 38 | 67 |
Using the data and the dopamine hypothesis, outline which model is more likely to produce a positive symptom of schizophrenia.
144 exam-style questions on OCR GCSE Psychology 3.2 Theories/Explanations, covering 3.2.1 Clinical characteristics of schizophrenia, 3.2.2 Key statistics of schizophrenia, 3.2.3 Dopamine hypothesis of schizophrenia, 3.2.4 Brain structure and function in schizophrenia; criticisms, 3.2.5 Social drift theory of schizophrenia, 3.2.6 Schizophrenia research study: Daniel et al. (1991), 3.2.7 Clinical characteristics of clinical depression, 3.2.8 Key statistics of clinical depression, 3.2.9 Social rank theory of clinical depression, 3.2.10 ABC Model of clinical depression, and 3.2.11 Clinical Depression research study: Tandoc et al. (2015). Each one has a worked solution and a mark scheme showing where the marks go.