• contrast: Contrast of the stimulus.
  
  
  • uniform: The contrast is uniform.
    • contrastValue: Numeric value of the contrast. Value from zero to one. Time-dependent.
      
      
  • gaussian: The contrast is fitted by a 2d gaussian function centered in the center of the shape.
    • contrastValue: Maximum value of the contrast in the center of the stimulus. Value from zero to one. Time-dependent.
    • contrastGaussianDeviation: The standard deviation of the gaussian function of the contrast. Size property. Time-dependent.
      
      
  • cosine: The contrast is fitted by a 2d raised cosine function centered in the center of the shape.
    • contrastValue: Maximum value of the contrast in the center of the stimulus. Value from zero to one. Time-dependent.
    • contrastCosineValue: The stimulus is masked with a circular shape of diameter equal to the maximum size of the stimulus. In the exterior part of the shape, the contrast decay from contrastValue to zero following a cosine function. ContrastCosineValue is the proportion of the shape that is not affected by the cosine decay. Value from zero to one. Time-dependent.