Final answer:
Extreme psychomotor symptoms of schizophrenia, such as a lack of movement or rigid muscles, are collectively referred to as a. Catatonia. This condition is associated with neurotransmitter imbalances, including dopamine, and is often managed with antipsychotic medications.
Step-by-step explanation:
The psychomotor symptoms for schizophrenia may take certain extreme forms, collectively called Catatonia. Catatonia includes a range of symptoms such as a lack of movement, resistance to movement, rigid muscles, or abnormal movements. These extreme psychomotor symptoms can result from the imbalances in neurotransmitters, particularly in the dopamine system, which is linked to schizophrenia. Treatments for schizophrenia often involve antipsychotic medications, which work by blocking dopamine receptors to decrease dopamine neurotransmission in the brain. These medications can also lead to movement disorders that resemble those associated with Parkinson's disease.