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A recently developed psychophysical "card" technique was used to evaluate monocular contrast sensitivity in ninety 3-, 6-, 12-, 24-, and 36-month-old human infants. Results showed that for 3-, 6-, 24-, and 36-month-olds, monocular contrast sensitivity functions were very similar to binocular contrast sensitivity functions estimated in a previous experiment. However, at 12-months, monocular contrast sensitivity functions were significantly lower (about 1 octave) than binocular contrast sensitivity functions, a trend also observed in developmental studies of visual acuity. This asymmetry suggests that the neural substrate underlying the development of monocular and binocular spatial vision undergoes different rates of development, at least during the months surrounding the end of the first postnatal year.
R J Adams, and
M L Courage
April 1978,
Investigative ophthalmology & visual science,
R J Adams, and
M L Courage
January 1998,
Annals of nutrition & metabolism,
R J Adams, and
M L Courage
January 1989,
Vision research,
R J Adams, and
M L Courage
May 2017,
Journal of pediatric endocrinology & metabolism : JPEM,
R J Adams, and
M L Courage
January 2011,
i-Perception,
R J Adams, and
M L Courage
January 2008,
Infant behavior & development,
R J Adams, and
M L Courage
December 1994,
Perception & psychophysics,
R J Adams, and
M L Courage
February 2006,
Human movement science,
R J Adams, and
M L Courage
April 1995,
Vision research,
R J Adams, and
M L Courage
January 2009,
Perception,
