The present paper organizes and evaluates selected portions of the time perception literature. Emphasis is on data and theory concerned primarily with judgments of brie/temporal intervals. Research concerning the psychophysical law for time, Weber's law, the time-order error, and the role of nontemporal information is evaluated. This is followed by a consideration of current, quantitatively oriented, theoretical formulations for time perception.Five years ago, Allan and Kristofferson (1974a) could write: "There are few quantitative theories of duration discrimination and few established empirical phenomena to guide theorizing" (p. 26). Since that time, there has been a dramatic change. Many articles on the discrimination of brief temporal intervals, and several new quantitative models, have appeared in a period of a few years. The last major general review and evaluation of the literature concerned primarily with the perception of brief temporal intervals was published almost 30 years ago by Woodrow (1951). Recent reviews by Doob (1971), Fraisse (1963), and Peppel (1978) emphasize the perception of relatively long temporal intervals. The present paper organizes and evaluates those portions of the more recent time perception literature concerned primarily with judgments of brief temporal intervals, generally less than 10 sec, by normal human adults. First, the more common methods used are described. Second{ the research relevant to four central issues is evaluated. Finally, current and quantitatively oriented theoretical formulations for time perception are considered.Even within these limits, no attempt at covering all the relevant literature was made; the literature considered is best described as representative rather than comprehensive. (A fairly comprehensive recent bibliography of the time perception literature is Zelkind and Sprug, 1974.)
METHODOLOGYPast attempts to impose order on the methodology of time perception (e.g., Bindra & Waksberg, 1956;Clausen, 1950;Woodrow, 1951) the experimenter (E) presents a temporal interval and the subject (S) gives a verbal estimate of its duration in clock time. In production, E states the duration of the interval in clock time and S produces that interval. In reproduction, E presents the temporal interval and S reproduces it. In the method of comparison, E presents two temporal intervals in succession and S makes a judgment of relative duration.Many studies asked (1) which method produced judgments of greatest accuracy (least difference from the presented temporal interval) and consistency (least intra-and intersubject variability), and (2) whether there were significant correlations among the basic methods (e.g