Psychonomic Science

, Volume 15, Issue 6, pp 299–300 | Cite as

Temporal ROC curves and the psychological moment

  • Jonathan Baron
  • Mental Health
Perception and Performance Psychophysics


Subjects were asked to tell which of two points on a visual display moved first, and to indicate their confidence according to a six-category scale. One of the two points moved 32 msec before the other in all cases, but the order varied at random. ROC curves were straight lines on normal-normal paper. The results are inconsistent with the theory of a “psychological moment” but are consistent with the idea of “temporal noise” in perception.


Confidence Rating Temporal Noise Serial Position Curve Moment Theory Prior Entry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. BÉKÉSY, G. von. Sensory inhibition. New York: McGraw-Hill, 1967.Google Scholar
  2. GREEN, D. M., & SWETS, J. A. Signal detection theory and psychophysics. New York: John Wiley & Sons, 1966.Google Scholar
  3. HIRSCH, I. J., & SHERRICK, C. E., JR. Perceived order in different sense modalities. Journal of Experimental Psychology, 1961, 62, 423–432.CrossRefGoogle Scholar
  4. JAMES, W. Principles of psychology. New York: Henry Holt, 1890.CrossRefGoogle Scholar
  5. KRISTOFFERSON, A. B. Successiveness discrimination as a two-state, quantal process. Science, 1967, 158, 1337–1339.PubMedCrossRefGoogle Scholar
  6. SCHMIDT, M. W., & KRISTOFFERSON, A. B. Discrimination of successiveness: A test of a model of attention. Science, 1963, 139, 112–113.PubMedCrossRefGoogle Scholar
  7. SHALLICE, T. Temporal summation and absolute brightness thresholds. British Journal of Mathematical & Statistical Psychology, 1967, 20, 129–162.CrossRefGoogle Scholar
  8. STROUD, J. M. The fine structure of psychological time. In H. Quastler (Ed.). Information theory in psychology. New York: Free Press, 1955.Google Scholar
  9. THOR, D. H. Observer strategies in dichoptic viewing of successive stimuli. Psychonomic Science, 1968, 12, 41–42.CrossRefGoogle Scholar
  10. WHITE, C. T. Temporal numerosity and the psychological unit of duration. Psychological Monographs, 1963, (Whole No. 575).Google Scholar

Copyright information

© Psychonomic Journals, Inc. 1969

Authors and Affiliations

  • Jonathan Baron
    • 1
  • Mental Health
    • 1
  1. 1.Research InstituteThe University of MichiganAnn ArborUSA

Personalised recommendations