What are some examples of psychomotor seizures and what causes them?

• A. Chronic coughing due to allergies
• B. Gradual weight gain
• C. Dehydration-induced lethargy
• D. Sudden episodes of aggression, salivation, hallucinations (fly biting)

Answer: (D)

Psychomotor seizures are a form of focal brain seizure where the disturbance in brain electrical activity produces noticeable behavioral and autonomic changes. In dogs, these seizures often show up as sudden, unusual behaviors that involve aggression or agitation, excessive salivation, and actions that look like reacting to invisible stimuli—commonly described as fly biting. This combination of abrupt behavioral change and autonomic signs is what makes it a psychomotor (complex partial) seizure, usually arising from a focal area in the brain, commonly the temporal lobe.

The cause is abnormal electrical activity in a specific brain region. Seizures can be due to genetic predisposition in some breeds, structural brain disease or injury, infections, metabolic problems, toxins, or idiopathic epilepsy where no exact cause is found. Other options listed don’t fit because coughing, gradual weight gain, or dehydration-related lethargy are signs of non-neurological issues and do not reflect abrupt, episodic brain-driven behavioral events like seizures.