stimuli#

Modules#

benarys#

bullseyes#

checkerboards#

cornsweets#

cubes#

delboeufs#

dungeons#

edges#

gabors#

hermanns#

mondrians#

mueller_lyers#

pinwheels#

plaids#

ponzos#

rings#

sbcs#

todorovics#

waves#

wedding_cakes#

whites#

Functions#

mask_targets(element_mask, target_indices)

Indicate elements as targets

place_targets(stim, element_mask_key, ...[, ...])

Place targets in stimulus

overview([skip])

Generate example stimuli from this module

plot_overview([mask, save, units])

Plot overview of examples in this module (and submodules)

stimupy.stimuli.mask_targets(element_mask, target_indices)[source]#

Indicate elements as targets

Creates a new target_mask from a mask of elements (e.g., grating bars, rings, frames, etc.), by indexing these elements.

Parameters:
  • element_mask (numpy.ndarray) – mask with integer values for different elements / regions in a stimulus

  • target_indices (Sequence[int] or int) – index or indices of elements to be designated as targets. Index 0 should always refer to background region. Indices can be negative, which results in “counting backwards” from the highest index in element_mask.

Returns:

target mask, with integer values indicating target regions, in order that they appear in target_indices

Return type:

numpy.ndarray

Raises:

ValueError – if a target_idx is greater than any value in the element_mask

stimupy.stimuli.place_targets(stim, element_mask_key, target_indices, intensity_target=0.5)[source]#

Place targets in stimulus

Turns image regions/elements defined by element_mask_key and indicated by target_indices, into targets. Targets are defined in a new target_mask, and drawn into image with intensity_target.

Parameters:
  • stim (dict[str, Any]) – stimulus dictionary, with at least an “img” key, and mask indicated by element_mask_key

  • element_mask_key (str) – key of the mask in stim-dict indicating image “elements”/regions

  • target_indices (Sequence[int] or int) – index or indices of elements to be designated as targets

  • intensity_target (float, optional) – intensity value for target, by default 0.5

Returns:

dict with the stimulus (key: “img”) with targets placed, mask with integer index for the target (key: “target_mask”)

Return type:

dict[str, Any]

stimupy.stimuli.overview(skip=False)[source]#

Generate example stimuli from this module

Returns:

Dict mapping names to individual stimulus dicts

Return type:

dict[str, dict]

stimupy.stimuli.plot_overview(mask=False, save=None, units='deg')[source]#

Plot overview of examples in this module (and submodules)

Parameters:
  • mask (bool or str, optional) – If True, plot mask on top of stimulus image (default: False). If string is provided, plot this key from stimulus dictionary as mask

  • save (None or str, optional) – If None (default), do not save the plot. If string is provided, save plot under this name.

  • units ("px", "deg" (default), or str) – what units to put on the axes, by default degrees visual angle (“deg”). If a str other than “deg”(/”degrees”) or “px”(/”pix”/”pixels”) is passed, it must be the key to a tuple in stim