Which condition is characterized by intermittent bursts of abnormal brain activity?

Which condition is characterized by intermittent bursts of abnormal brain activity?

• A. Hypoglycemia
• B. Cushing's disease
• C. Epilepsy
• D. Hypothyroidism

Answer: (C)

Epilepsy is defined by recurrent, unprovoked seizures caused by intermittent bursts of abnormal electrical activity in the brain. Neurons briefly fire in synchronized, excessive bursts, which can produce a range of seizure manifestations—from convulsions to brief lapses of awareness—depending on where in the brain the discharges occur. An EEG often shows spikes or spike-and-wave patterns that reflect these abnormal discharges. The other conditions involve metabolic or hormonal issues rather than recurring abnormal brain electrical activity, so they don’t fit the description of intermittent bursts that characterize epilepsy.

Epilepsy is defined by recurrent, unprovoked seizures caused by intermittent bursts of abnormal electrical activity in the brain. Neurons briefly fire in synchronized, excessive bursts, which can produce a range of seizure manifestations—from convulsions to brief lapses of awareness—depending on where in the brain the discharges occur. An EEG often shows spikes or spike-and-wave patterns that reflect these abnormal discharges. The other conditions involve metabolic or hormonal issues rather than recurring abnormal brain electrical activity, so they don’t fit the description of intermittent bursts that characterize epilepsy.