PROGRAMME - AUTUMN TERM 1995

  • Friday 20 October at 4.30pm

    venue: Department of Psychology, University of Reading

    Prof. Richard Gregory, University of Bristol - "Experiments on the Pulfrich phenomenon and also on the 'jazzing' of Op Art"

  • Friday 24 November at 4.30pm

    venue: Department of Human Sciences, Brunel University

    Prof. Oliver Braddick, University College London - "What mechanisms underly infants' processing of visual motion?"

    Abstract

    Sensitivity to directional motion is one of the most important aspects of basic visual processing. Yet evoked-potential and behavioural experiments show no evidence for directional sensitivity of the infant visual cortex before about 7-8 weeks of age, significantly later than sensitivity to orientation. The one piece of newborn behaviour which indicates motion processing is optokinetic eye movements (OKN) to a large moving field. Monocular asymmetries in this response have been taken to indicate that it is subcortically controlled in the newborn. However, newer results imply that human OKN, and monocular asymmetries, may depend on a cortical route. Understanding the mechanisms of motion perception will require us to understand the interplay of cortical and subcortical systems in development.
  • Friday 8 December at 4.30pm

    venue: Department of Psychology, University of Surrey

    Prof. Peter Hammond, University of Keele - "Summation, excitation and suppression in the visual cortex"

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