True or False: Seizures always affect the entire brain.

Seizures do not always affect the entire brain, making the statement false. Seizures can be focal, originating in one specific region of the brain, or generalized, which do involve the whole brain. Focal seizures can occur without any loss of consciousness or with it, depending on the specific type of focal seizure. This distinction is crucial for understanding seizure activity and its implications in terms of diagnosis and treatment. While generalized seizures engage the entire brain, focal seizures serve to illustrate that many types of seizures localize to specific areas, thereby confirming that not all seizures impact the entire brain.