The detection of the motion of contrast modulation: A parametric study
Simon J Cropper, Jessica GS Kvansakul, Alan Johnston
ATTENTION PERCEPTION & PSYCHOPHYSICS | SPRINGER | Published : 2009
Despite a long and productive history as a focus of research interest, the details of how humans detect motion in an image remain controversial. This debate has not been helped by the lack of a clear parametric description of motion discrimination for some of the more simple visual stimuli employed in the literature to date. With this in mind, in the present work, we examined a peculiarity observed in the perception of the motion of second-order (contrast-modulated) stimuli: Under certain stimulus conditions, there is a reversal in the perceived direction of motion of the pattern. The aim was to quantify this phenomenon, relate the reversal to forward (veridical) and ambiguous motion, and pl..View full abstract
Awarded by Biotechnology and Biological Sciences Research Council
The work presented in this article was collected over a period of several years and was financially supported by grants from the Wellcome Trust and the Australian Research Council.