The effects of target borders on dynamic visual acuity: practical and theoretical implications.

G. M. Long, Philip M. Garvey

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

The effects of target borders on the ability of observers to resolve moving targets (Landolt Cs) under a range of conditions were examined. Contrary to reported findings with stationary targets, it was predicted that the presence of borders would improve acuity for slow-moving targets because (i) overall stimulus energy is kept relatively constant as target detail varies, and (ii) a low-spatial-frequency component is held constant as target detail varies. In an experiment in which a two-sided border (above and below the target) was used, the predicted beneficial effect of the border at slow speeds was obtained. The results are discussed in terms of practical implications for the assessment of dynamic visual acuity as well as the potential neural mechanisms underlying performance.

Original languageEnglish (US)
Pages (from-to)745-751
Number of pages7
JournalPerception
Volume17
Issue number6
DOIs
StatePublished - Jan 1 1988

All Science Journal Classification (ASJC) codes

  • Experimental and Cognitive Psychology
  • Ophthalmology
  • Sensory Systems
  • Artificial Intelligence

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