Abstract
Time estimation was studied in seven human subjects during prolonged
sojourn is isolation from time cues. They wore rectal temperature
probes throughout the experiments, and during wakefulness recorded
each time they thought one hour had passed. At the end of each of
these subjective hours they produced a subjective 5 or 10 sec interval.
The produced intervals on the 1-h task were not related to body temperature
but were correlated with and proportional to the duration of waketime
in all subjects. The produced 5 and 10 sec intervals were in all
subjects negatively correlated with rectal temperature, but were
not associated with wake time. Brief and long time intervals are
subjectively experienced via different mechanisms.
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