scholarly journals Adaptation in distance perception with head-movement parallax serving as the veridical cue

1979 ◽  
Vol 25 (1) ◽  
pp. 42-46 ◽  
Author(s):  
Hans Wallach ◽  
Ann O’leary
1974 ◽  
Vol 38 (3) ◽  
pp. 747-750
Author(s):  
Steven H. Ferris

The possible value of monocular motion parallax for improving distance perception underwater was investigated. Submerged Ss either kept their heads stationary or rotated their heads about a vertical axis while judging the distance of objects placed 4 to 15 ft. away. Both before and after training with feedback to increase accuracy of judgment, head movement did not significantly improve performance. Water turbidity and loss of position constancy are two probable reasons for the failure to replicate the positive results previously obtained in air.


2002 ◽  
Vol 42 (16) ◽  
pp. 1991-2003 ◽  
Author(s):  
Chin-Hwee Peh ◽  
Francesco Panerai ◽  
Jacques Droulez ◽  
Valérie Cornilleau-Pérès ◽  
Loong-Fah Cheong

Perception ◽  
1973 ◽  
Vol 2 (2) ◽  
pp. 135-146 ◽  
Author(s):  
G Johansson

Monocular perception of absolute distances in near space (<2 m) is discussed and studied experimentally. Stimulus change in time and sensory co-action (visual plus kinestethic) are in the theoretical analysis regarded as essential. Therefore movement parallax due to voluntary head movements has been introduced, in the experiments, as a hypothetical main cue, and perspective pattern transformation as a probably important side cue together with accommodation. (In ‘natural’ monocular perception these cues, in combination, are always available in near-space perception.) Under these experimental conditions all subjects exhibited approximately adequate (veridical) distance perception. This positive result, which diverges from the commonly accepted views about absolute-distance information, is tentatively regarded as an effect of the combination of cues and of methodological improvements introduced in the experiments. The result is taken as an indication of the fruitfulness of Gibson's conception of perceptual systems.


1985 ◽  
Vol 119 (1) ◽  
pp. 115-131 ◽  
Author(s):  
E. Sture Eriksson

The behaviour of the Australian bulldog ant Myrmecia nigriceps (Fr. Smith) has been studied by using moving targets characterized by sizedistance equivalence in relation to a stationary zero-point. The attack behaviour of freely moving animals demonstrated that the ants can discriminate between different targets, in the range of 5–80 cm, using movement parallax to extract information about the targets. By studying the antenna response it was possible to demonstrate that the stationary bulldog ant can utilize binocular disparity information and that this mechanism has an effective range of about 90 mm.


1999 ◽  
Vol 58 (3) ◽  
pp. 170-179 ◽  
Author(s):  
Barbara S. Muller ◽  
Pierre Bovet

Twelve blindfolded subjects localized two different pure tones, randomly played by eight sound sources in the horizontal plane. Either subjects could get information supplied by their pinnae (external ear) and their head movements or not. We found that pinnae, as well as head movements, had a marked influence on auditory localization performance with this type of sound. Effects of pinnae and head movements seemed to be additive; the absence of one or the other factor provoked the same loss of localization accuracy and even much the same error pattern. Head movement analysis showed that subjects turn their face towards the emitting sound source, except for sources exactly in the front or exactly in the rear, which are identified by turning the head to both sides. The head movement amplitude increased smoothly as the sound source moved from the anterior to the posterior quadrant.


2004 ◽  
Author(s):  
Cynthia S. Sahm ◽  
Sarah H. Creem-Regehr ◽  
William B. Thompson ◽  
Peter Willemsen

1991 ◽  
Author(s):  
Sergio S. Fukusima ◽  
Jack M. Loomis ◽  
Jose A. da Silva
Keyword(s):  

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