scholarly journals Theoretical and methodological approaches to apparent movement of short-range process and pattern perception

1986 ◽  
Vol 18 (6) ◽  
pp. 542-550 ◽  
Author(s):  
Jih Jie Chang
Keyword(s):  
Short Range ◽  
Apparent Movement ◽  
Pattern Perception ◽  
Methodological Approaches ◽  
Range Process

Dependence of Apparent Movement of a Subjective Figure on the Perceptual Fate of Inducing Elements

Perception ◽  
1987 ◽  
Vol 16 (4) ◽  
pp. 453-459 ◽  
Author(s):  
J Timothy Petersik
Keyword(s):  
Long Range ◽  
Short Range ◽  
Apparent Movement ◽  
Subjective Figure ◽  
Range Process

In a series of demonstrations, two stimulus frames that contained subjective figures were alternated. It is shown that the perception of apparent movement of a subjective figure depends upon the configuration of the inducing stimuli and whether or not conditions of presentation favor the short-range or long-range process in apparent movement. Those conditions that favor the long-range process result in global apparent movement of the subjective figure. However, those conditions that favor the short-range process may prevent apparent movement of the subjective figure, or may result in a kind of apparent movement that is qualitatively different from that seen when similar physical contours are alternated. These results are interpreted in terms of the assumed differences between the short-range and long-range processes.

Correspondence Strength in Apparent Movement: Reply to Petersik Et Al

Perception ◽  
1982 ◽  
Vol 11 (6) ◽  
pp. 747-748
Author(s):  
Shimon Ullman
Keyword(s):  
Long Range ◽  
Short Range ◽  
Apparent Movement

Petersik et al suggest that similarity and related effects are the result of a tradeoff between the short-range and long-range processes; the main point of disagreement centers around the source of these effects and does not bear directly on the main issues discussed in the original paper.

Failure to find an absolute retinal limit of a putative short-range process in apparent motion

1983 ◽  
Vol 23 (12) ◽  
pp. 1663-1670 ◽  
Author(s):  
J. Timothy Petersik ◽  
Randall Pufahl ◽  
Elizabeth Krasnoff
Keyword(s):  
Apparent Motion ◽  
Short Range ◽  
Range Process

Monocular versus Binocular Contrast Thresholds for Movement and Pattern

Perception ◽  
1978 ◽  
Vol 7 (2) ◽  
pp. 195-200 ◽  
Author(s):  
David Rose
Keyword(s):  
Nerve Cell ◽  
Binocular Vision ◽  
Apparent Movement ◽  
Monocular Vision ◽  
Pattern Detection ◽  
Pattern Perception ◽  
Sinusoidal Grating ◽  
Movement Detection ◽  
Linear Summation ◽  
Contrast Thresholds

The superiority of binocular vision over monocular vision has been compared for the detection of stationary sinusoidal grating patterns, and for the detection of the apparent movement induced by rapidly phase-reversing such gratings. The thresholds for binocular and monocular pattern perception were in the ratio 1: 2 1/2, as found by previous workers. For apparent movement, however, binocular thresholds were lower than monocular thresholds by a factor of 1 ·9; for every subject tested ( n = 20) the ratio for movement detection was larger than the ratio for pattern detection. The effects of combining inputs from the two eyes cannot be explained solely by linear summation models, but may in some circumstances depend on the nonlinearities of certain types of nerve cell.

Correspondence Strength in Apparent Movement as a Function of Short-Range and Long-Range Processes: Comments on Ullman (1980)

Perception ◽  
1982 ◽  
Vol 11 (6) ◽  
pp. 743-746 ◽  
Author(s):  
J Timothy Petersik ◽  
Mark Boring ◽  
Melinda McDill
Keyword(s):  
Long Range ◽  
Short Range ◽  
Apparent Movement ◽  
Relative Activity ◽  
Joint Function

It is argued that correspondence strength is a joint function of the relative activity of short-range and long-range processes and not solely a function of a single correspondence process, and this puts Ullman's interpretation of his results in doubt.

A short-range process in apparent motion

1974 ◽  
Vol 14 (7) ◽  
pp. 519-527 ◽  
Author(s):  
Oliver Braddick
Keyword(s):  
Apparent Motion ◽  
Short Range ◽  
Range Process

Temporal Properties of the Short-Range Process in Apparent Motion

Perception ◽  
1985 ◽  
Vol 14 (2) ◽  
pp. 181-192 ◽  
Author(s):  
Curtis L Baker ◽  
Oliver J Braddick
Keyword(s):  
Motion Perception ◽  
Apparent Motion ◽  
Motion Detection ◽  
Interstimulus Interval ◽  
Short Range ◽  
Time Interval ◽  
Optimal Motion ◽  
Temporal Properties ◽  
Range Process

A study is reported of the perception of random-dot two-frame apparent motion in which the durations of each exposure and the interstimulus interval between them were varied. The results are largely consistent with the rule that, for optimal motion detection, a portion of each exposure must fall within the same time interval of about 40 ms. In addition, motion perception is separably dependent on the displacement from one exposure to the next and on the time interval between those exposures, rather than on the ‘velocity implied by their ratio.

scholarly journals Group movement produced by the short-range process

1986 ◽  
Vol 39 (6) ◽  
pp. 445-446 ◽  
Author(s):  
J. Timothy Petersik
Keyword(s):  
Short Range ◽  
Group Movement ◽  
Range Process
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