Table 2.

An overview of the 10 core items

Name	Type	Description
loop	Structure	Repeatedly runs a single other item. Controls independent variables.
sequence	Structure	Runs multiple other items in sequences. Supports basic conditional statements (“Run if …”).
sketchpad	Stimulus presentation	Provides a canvas for presentation of visual stimuli.
feedback	Stimulus presentation	Provides feedback to participants.
sampler	Stimulus presentation	Plays a sound from file.
synth	Stimulus presentation	Provides basic sound synthesis.
keyboard_response	Response collection	Collects keyboard responses.
mouse_response	Response collection	Collects mouse responses.
logger	Data logging	Writes variables to file.
inline_script	Inline scripting	Executes arbitrary Python code.