What is the term for a lack of movement and is a negative symptom of schizophrenia, often seen as a side effect of antipsychotic medications?

• A. Akathisia
• B. Akinesia
• C. Pseudoparkinsonism
• D. Tardive dyskinesia

Answer: (B)

The term for a lack of movement that is associated with schizophrenia and can be a side effect of antipsychotic medications is akinesia. Akinesia refers specifically to the absence or loss of the normal movement, and it is often characterized by a slowing down of movement and difficulty initiating movement. This symptom can manifest in individuals who are on antipsychotic medication as a result of the medication's impact on the dopamine pathways in the brain.

While akathisia refers to a feeling of inner restlessness and an uncontrollable need to be in constant motion, and pseudoparkinsonism encompasses symptoms similar to Parkinson's disease such as tremors and rigidity, these conditions do not specifically denote a complete lack of movement. Tardive dyskinesia is characterized by involuntary, repetitive body movements, which is contrary to the concept of akinesia. Therefore, akinesia accurately fits the description of the lack of movement associated with both schizophrenia and the effects of certain medications.