Fixation Point Stimulus¶
Width of the (square) fixation window, which shares its center with the visible stimulus rectangle
Variable containing the horizontal eye position
Variable containing the vertical eye position
The color of the stimulus, expressed as a comma-separated list of red, green, and blue components. Each component may be described by any valid expression, but the expression must result in a value between 0 and 1 (inclusive).
Controls the transparency of the stimulus.
1.0 is fully opaque, while
0.0 is fully tranparent.
Horizontal size (degrees).
Vertical size (degrees).
Horizontal center position (degrees)
Vertical center position (degrees)