ISSN:
1432-1106
Keywords:
Key words Form from motion
;
Visual development
;
Visual acuity
;
Human
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract The development of dynamic vision was investigated in 400 healthy subjects (200 females and 200 males) aged between 4 and 24 years. The test consisted of a computer-generated random-dot kinematogram in which a Landolt ring was briefly presented as a form-from-motion stimulus. Motion contrast between the ring and background was varied in terms of the percentage of dots moving coherently within the ring in four levels (100%, 50%, 30%, and 20%). The subject’s task was to indicate the position of a gap in the ring (left, right, top, bottom). Results show a clear increase in performance with age for all motion contrast levels, with the greatest changes for the lowest levels. Adult performance was reached at the age of 15 years. Luminance-based static acuity measured with the Landolt test was poorly correlated with acuity for its form-from-motion analogue.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s002210050642
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