In antipsychotic therapy, which motor phenomenon can occur and is sometimes linked to seizure activity?

In antipsychotic therapy, which motor phenomenon can occur and is sometimes linked to seizure activity?

• A. Myoclonus
• B. Tremor
• C. Tardive dyskinesia
• D. Akinetic mutism

Answer: (A)

Myoclonus are sudden, brief, shock-like jerks of a muscle or group of muscles. In antipsychotic therapy, most movement problems come from extrapyramidal signs like tremor, dystonia, akathisia, or tardive dyskinesia, but myoclonus stands out because it can be linked to seizure activity. Seizures produce abnormal, synchronized neuronal firing that can manifest as myoclonic jerks, and some antipsychotics may lower the seizure threshold, increasing the chance of these events in susceptible individuals. So this motor phenomenon best fits the description of being associated with seizures. Tremor is common with dopamine blockade but not typically seizure-related; tardive dyskinesia is a chronic, repetitive movement disorder not tied to seizures; akinetic mutism is a severe, reduction in movement and speech and not characteristic of seizure-linked activity.

Myoclonus are sudden, brief, shock-like jerks of a muscle or group of muscles. In antipsychotic therapy, most movement problems come from extrapyramidal signs like tremor, dystonia, akathisia, or tardive dyskinesia, but myoclonus stands out because it can be linked to seizure activity. Seizures produce abnormal, synchronized neuronal firing that can manifest as myoclonic jerks, and some antipsychotics may lower the seizure threshold, increasing the chance of these events in susceptible individuals. So this motor phenomenon best fits the description of being associated with seizures. Tremor is common with dopamine blockade but not typically seizure-related; tardive dyskinesia is a chronic, repetitive movement disorder not tied to seizures; akinetic mutism is a severe, reduction in movement and speech and not characteristic of seizure-linked activity.