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.
Notation. Two trajectories of a spontaneously active neuron firing with period Tc are shown, one unperturbed (black) and one perturbed by the stimulus presented at period Ts. The phase-dependent change in the period caused by the stimulus is Δt. Stimulation latencies relative to cell firing are indicated by ts, and response latencies relative to the stimulus are labeled tr.
