The 'internal clocks' of circadian and interval timing.
Endeavour, 21 (2):
82--87 (1997)Abstract
Animals engage in a startlingly diverse array of behaviours that depend
critically on the time of day or the ability to time short intervals.
Timing intervals on the scale of many hours to around a day is mediated
by the circadian timing system, while in the range of seconds to
hours a different system, known as interval timing, is used. Recent
research has illuminated some of the neural mechanisms underlying
the 'internal clocks' of these two different timing systems in both
animals and humans. Therapeutic applications for humans with impairments
in either timing system may ultimately result from these endeavours.