todorovic_rectangles

todorovic_rectangles#

todorovic_rectangles stimulus example

You can find an interactive version of this example here

stimupy.stimuli.benarys.todorovic_rectangles(visual_size=None, ppd=None, shape=None, L_width=None, target_size=None, intensity_background=1.0, intensity_cross=0.0, intensity_target=0.5)#

Todorovic version of Benary’s Cross stimulus with two rectangular targets and default placement

Parameters:

  • visual_size (Sequence[Number, Number], Number, or None (default)) – visual size [height, width] of grating, in degrees

  • ppd (Sequence[Number, Number], Number, or None (default)) – pixels per degree [vertical, horizontal]

  • shape (Sequence[Number, Number], Number, or None (default)) – shape [height, width] of grating, in pixels

  • L_width (float) – width of L in degree visual angle

  • target_size ((float, float)) – size of all target(s) in degrees visual angle

  • intensity_background (float) – intensity value for background

  • intensity_cross (float) – intensity value for cross

  • intensity_target (float) – intensity value for target

Returns:

dict with the stimulus (key: “img”), mask with integer index for each target (key: “target_mask”), and additional keys containing stimulus parameters

Return type:

dict[str, Any]

References

Benary, W. (1924).

Beobachtungen zu einem Experiment über Helligkeitskontrast. Psychologische Forschung, 5, 131-142. https://doi.org/10.1007/BF00402398

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