The spiral aftereffect : influence of stimulus size and viewing distance on the duration of illusory motion.

Collins, William E.; Schroeder, David J.; United States. Office of Aviation Medicine

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The spiral aftereffect : influence of stimulus size and viewing distance on the duration of illusory motion.

1968-05-01
By Collins, William E. ; Schroeder, David J.

[PDF-404.92 KB]

English

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Creators:

Collins, William E. ; Schroeder, David J.

Collins, William E. ; Schroeder, David J. Less -
Corporate Creators:

United States. Office of Aviation Medicine
Subject/TRT Terms:

[+]

Air Pilots Analysis Of Variance Distance Distances Experiments Eye--Movements Eye Fixations Eye Location Eye Movements Human Subject Testing Lighting Motion Motion Perception Motion Perception (Vision) Night Vision Optical Illusions Rotation Rotational Motion Size Size Perception Speed Spirals Vision Vision--Testing Vision Tests Visual Perception
Publication/ Report Number:

Am 68-10 ; DOT/FAA/AM-68/10

Am 68-10 ; DOT/FAA/AM-68/10 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Civil Aerospace Medical Institute
Abstract:

The study examined some effects of stimulus size and distance on the persistence of one type of illusory motion, viz., the spiral aftereffect (SAE). Duration of SAE was investigated with stimuli of 2, 4, 8, 12, and 16 inches in diameter. The distance between the observers and the rotating spirals was varied to produce visual angles between 1 deg. 12 min. and 18 deg. 56 min. of arc. Data indicate that the duration of illusory motion reaches peak values between approximately 2 deg. -4 deg. of visual angle.
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PDF
Collection(s):

FAA Civil Aerospace Medical Institute US Transportation Collection
Main Document Checksum:

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urn:sha256:65641f0e42420add8ed8f29a7ad8ca8d56655696a89bb0be0f85136b22510c13
Download URL:

https://rosap.ntl.bts.gov/view/dot/20848/dot_20848_DS1.pdf
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The spiral aftereffect : influence of stimulus size and viewing distance on the duration of illusory motion.

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