Diurnal properties of voltage‐gated Ca²⁺ currents in suprachiasmatic nucleus and roles in action potential firing

Key points Circadian oscillations in spontaneous action potential firing in the suprachiasmatic nucleus (SCN) translate time‐of‐day throughout the mammalian brain. The ion channels that regulate the circadian pattern of SCN firing have not been comprehensively identified. Ca 2+ channels regulate action potential activity across many types of excitable cells, and the activity of L‐, N‐, P/Q‐ and R‐type channels are required for normal daytime...