Brush Component¶

Basic¶

Name

Everything in a PsychoPy^® experiment needs a unique name. The name should contain only letters, numbers and underscores (no punctuation marks or spaces).

Start

The time that the stimulus should first appear.

Stop

Governs the duration for which the stimulus is presented.

Press Button

Should the participant have to press a button to paint (True), or should it be always on (False)?

Appearance¶

How should the stimulus look? Colour, borders, etc.

Opacity

Vary the transparency, from 0.0 = invisible to 1.0 = opaque

Contrast

Contrast of the stimulus (1.0=unchanged contrast, 0.5=decrease contrast, 0.0=uniform/no contrast, -0.5=slightly inverted, -1.0=totally inverted)

Brush color

Colour of the brush

Brush size

Width of the line drawn by the brush, in pixels

Color space

See Color spaces

Data¶

Save onset/offset times

Store the onset/offset times in the data file (as well as in the log file).

Sync timing with screen refresh

Synchronize times with screen refresh (good for visual stimuli and responses based on them)

Testing¶

Disable Component

Disable this Component

Validate with…

Name of validator Component/Routine to use to check the timing of this stimulus.

Options are generated live, so will vary according to your setup.