Movement detection thresholds and stimulus duration

Movement detection thresholds were measured for varying exposures of a moving spot. A tradeoff was found in which an increase in duration (T) was offset by a decrease in the velocity required for detection (V). In the range of durations studied (about 50–700 msec), V × T was constant. The V × T constancy was interpreted in terms of the direct detection of movement as motion, and a comparison was made with Bloch’s law.

[1]  R. Cohen.  Problems in motion perception , 1964 .

[2]  R. H. Blackburn.  PERCEPTION OF MOVEMENT , 1937 .

[3]  H. Barlow,et al.  Evidence for a Physiological Explanation of the Waterfall Phenomenon and Figural After-effects , 1963, Nature.

[4]  H. Leibowitz.  Effect of reference lines on the discrimination of movement. , 1955, Journal of the Optical Society of America.

[5]  R. H. Brown,et al.  The lower threshold of visible movement as a function of exposure-time. , 1954, The American journal of psychology.

[6]  D. Henderson.  The relationships among time, distance, and intensity as determinants of motion discrimination , 1971 .

[7]  N. Draper,et al.  Applied Regression Analysis , 1966 .

[8]  Leibowitz Hw,et al.  The relation between the rate threshold for the perception of movement and luminance for various durations of exposure. , 1955 .

[9]  R. Sekuler,et al.  Aftereffect of Seen Motion with a Stabilized Retinal Image , 1963, Science.

[10]  Claude Bonnet,et al.  Interactions between spatial and kinetic dimensions in movement aftereffect , 1972 .

[11]  R Sekuler,et al.  Contrast response of human visual mechanismsensitive to orientation and direction of motion. , 1969, Vision research.

[12]  H. Barlow,et al.  Selective Sensitivity to Direction of Movement in Ganglion Cells of the Rabbit Retina , 1963, Science.

[13]  R. L. Cohen,et al.  Adaptation effects and after effects of moving patterns viewed in the periphery of the visual field. , 1965, Scandinavian journal of psychology.

[14]  Robert H. Brown.  Velocity Discrimination and the Intensity-Time Relation , 1955 .

[15]  Forrest L. Dimmick,et al.  The effect of the exposure time upon the R. L. of visible motion , 1930 .