Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Source-sink hypothesis. Top: During interictal periods, epileptogenic nodes (shaded red region) are sinks that are strongly inhibited (influenced) by neighbouring regions (sources) to prevent seizures. Bottom: During ictal periods, however, epileptogenic nodes become sources as they work together as a tightly coupled group to initiate and spread epileptogenic activity to other regions of the brain.
