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Back in the mesolimbic pathway, dopamine can play a role in psychosis, and many antipsychotics for treatment of schizophrenia target dopamine. Dopamine is involved in the frontal cortex in executive functions like attention.t has far more roles in the brain to play. For example, dopamine plays a big role in starting movement, and the destruction of dopamine neurons in an area of the brain called the substantia nigra is what produces the symptoms of Parkinsonâs disease.
Scientists have found that the neurotransmitter dopamine, already linked to the basal ganglia in movement disorders, also is important in learning via reward and punishment, as well as in disorders including schizophrenia and attention-deficit/hyperactivity disorder.hunking, at its simplest, is the organization of information into specific associated groupings. Graybiel hypothesizes that the basal ganglia system helps the cortex to chunk learning into habits and routines to help the brain more quickly access stored information.