title: Changes in the lower displacement limit for motion with age.
abstract: Previous studies have alleged that the ability to perceive motion remains constant with age. We investigated the effect of age on minimum displacement thresholds using computer-generated random dot stimuli in 91 healthy, visually normal subjects (age range 21-82 years). High and low contrast visual acuity and letter contrast sensitivity were also tested. We found that minimum displacement thresholds increased significantly at a rate of 0.07 log min arc per decade (approximately 17%). The relationship between age and performance was very similar for all visual tests.
authors.affiliation: Centre for Eye Research, Queensland University of Technology, Brisbane, Australia.
authors.forename: J M
authors.initials: JM
authors.lastname: Wood
authors.forename: M A
authors.initials: MA
authors.lastname: Bullimore
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D015350:Contrast Sensitivity / Q000502:physiology; D006801:Humans; D008875:Middle Aged; D009039:Motion Perception / Q000502:physiology*; D012684:Sensory Thresholds / Q000502:physiology; D014792:Visual Acuity / Q000502:physiology