AP PSYCHOLOGY

Detailed explanation-1: -Increases in dopamine activity in certain parts of the brain can contribute to the positive symptoms of schizophrenia. Meanwhile, reduced dopamine activity in other parts of the brain may affect negative and cognitive symptoms. Dopamine is just one of many factors involved in schizophrenia symptoms.

Detailed explanation-2: -Post-mortem studies have shown high dopamine and HVA concentrations in various subcortical brain regions and greater than normal dopamine receptor densities in the brains of schizophrenic patients.

Detailed explanation-3: -Dopamine Hypothesis This theory suggests that an imbalance of dopamine is responsible for schizophrenic symptoms. In other words, dopamine plays a role in controlling our sense of reality, and too much or too little can cause delusions and hallucinations.

Detailed explanation-4: -Having too much dopamine-or too much dopamine concentrated in some parts of the brain and not enough in other parts-is linked to being more competitive, aggressive and having poor impulse control. It can lead to conditions that include ADHD, binge eating, addiction and gambling.