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Coherent motion pops out during smooth pursuit

Journal Article


Abstract


  • Stimulus motion is a prominent feature that is used by the visual system to segment figure from ground and perceptually bind widely separated objects. Pursuit eye movements can be influenced by such perceptual grouping processes. We have examined the subjects' ability to detect small amounts of coherent motion in random dot kinematograms during pursuit. We compared performance on tests of coherent motion perception while subjects fixated a stationary spot or while they tracked a moving target. The results indicate that smooth pursuit can improve subjects' ability to detect the presence of coherent motion. We tentatively propose that an efference copy of the eye movement signal can enhance the ability of the visual system to detect correlations between sparsely placed targets among noisy distractors. © 2002 Lippincott Williams & Wilkins.

Publication Date


  • 2002

Citation


  • Greenlee, M. W., Schira, M. M., & Kimmig, H. (2002). Coherent motion pops out during smooth pursuit. NeuroReport, 13(10), 1313-1316. doi:10.1097/00001756-200207190-00020

Scopus Eid


  • 2-s2.0-0037135226

Start Page


  • 1313

End Page


  • 1316

Volume


  • 13

Issue


  • 10

Abstract


  • Stimulus motion is a prominent feature that is used by the visual system to segment figure from ground and perceptually bind widely separated objects. Pursuit eye movements can be influenced by such perceptual grouping processes. We have examined the subjects' ability to detect small amounts of coherent motion in random dot kinematograms during pursuit. We compared performance on tests of coherent motion perception while subjects fixated a stationary spot or while they tracked a moving target. The results indicate that smooth pursuit can improve subjects' ability to detect the presence of coherent motion. We tentatively propose that an efference copy of the eye movement signal can enhance the ability of the visual system to detect correlations between sparsely placed targets among noisy distractors. © 2002 Lippincott Williams & Wilkins.

Publication Date


  • 2002

Citation


  • Greenlee, M. W., Schira, M. M., & Kimmig, H. (2002). Coherent motion pops out during smooth pursuit. NeuroReport, 13(10), 1313-1316. doi:10.1097/00001756-200207190-00020

Scopus Eid


  • 2-s2.0-0037135226

Start Page


  • 1313

End Page


  • 1316

Volume


  • 13

Issue


  • 10