Final answer:
Focal seizures, previously known as simple partial and complex partial seizures, are a type of epilepsy characterized by abnormal electrical activity in a specific area of the brain. Simple focal seizures involve a localized area of the brain and may result in things like involuntary muscle movements or sensory changes, while complex focal seizures typically involve a larger area and may cause altered consciousness or automatic behaviors.
Step-by-step explanation:
Focal seizures, previously known as simple partial and complex partial seizures, are a type of epilepsy characterized by abnormal electrical activity in a specific area of the brain. Focal seizures can manifest as either simple or complex, depending on whether or not consciousness is affected. Simple focal seizures involve a localized area of the brain and may result in things like involuntary muscle movements or sensory changes, while complex focal seizures typically involve a larger area and may cause altered consciousness or automatic behaviors.