Conventional scheduling algorithms usually adjust the clock cycle duration to the execution time of the longest operations.
The actual clock timing (duration coding) of the motor performance may simply be due to the entrainment of neural motor codes by the precise neural excitation patterns in the auditory pathway induced by auditory rhythm.
For example, in a 2004 study in The Journal of the International Neuropsychological Society, the researchers noted the difficulty of devising such a study but settled on one in which 86 healthy participants, 15 to 90 years old, were asked to perform tests in which they estimated the amount of time needed to draw a clock and the duration of a neurophysical evaluation they underwent.
The clock metering the duration of pregnancy has been suggested to consist of two interacting timers; an interval timer measuring the overall length of gestation, and a circadian timer defining when within a 24-hour cycle birth takes place [1].
In internal clock models, prospective duration tasks have been proposed to rely heavily on attentional resources [16]: the participant's state of arousal affects the rate of the pacemaker(s) whereas attention affects the latency of the switch to the accumulator i.e. the onset of the time keeper [22].
He used a clock to obtain duration, usually of complete dance circuits (waggle phase + return phase), and a protractor (accurate to 5°) to obtain orientation (von Frisch and Jander, 1957; von Frisch, 1967).
Scaled to substitutions per site, the reference phylogeny provided estimates of evolutionary distance between its transfer partners (edges), while scaled to a relaxed molecular clock, estimates of duration of exchange partner coexistence were obtained.
38 A stimulus triggers the accumulator to start counting "ticks," emitted from the pacemaker based on some sort of periodic neural process, until the end of the timed duration (clock component).
Since some plant genes are regulated by a diurnal rhythm and circadian clock, the exact duration of the treatments were designed such that the roots could be sampled at the same time each.
The time spent on each patient during a diagnostic or treatment consultation was measured by clocking the total duration of the consultation and noting the number of seconds.
