---
API: 2
OpenSesame: 3.0.5a1
Platform: posix
---
set width 1024
set uniform_coordinates "yes"
set title "Stop signal task"
set subject_parity "even"
set subject_nr 0
set start "experiment"
set sampler_backend "legacy"
set mouse_backend "xpyriment"
set keyboard_backend "legacy"
set height 768
set foreground "white"
set font_size 18
set font_italic "no"
set font_family "mono"
set font_bold "no"
set description "Default description"
set coordinates "uniform"
set compensation 0
set color_backend "legacy"
set clock_backend "legacy"
set canvas_backend "xpyriment"
set bidi "no"
set background "black"

define notepad about_this_experiment
	__note__
	Welcome to OpenSesame 3.0 "Interactive Ising"!
	If you are new to OpenSesame, it is a good idea to follow one of the tutorials,
	which can be found on the documentation site:
	- <http://osdoc.cogsci.nl/>
	You can also check out the examples. These can be opened via:
	- Menu -> Tools -> Example experiments.
	And feel free to ask for help on the forum:
	- <http://forum.cogsci.nl/>
	Have fun with OpenSesame!
	__end__
	set description "Some pointers to help you get started!"

define sketchpad blank
	set duration 500
	set description "Displays stimuli"

define loop block_loop
	set skip 0
	set repeat 1
	set order "random"
	set offset "no"
	set item "trial_sequence"
	set description "Repeatedly runs another item"
	set cycles 12
	set column_order "target;stop_after;correct_response"
	set break_if "never"
	setcycle 0 correct_response "None"
	setcycle 0 stop_after "50"
	setcycle 0 target "left"
	setcycle 1 correct_response "None"
	setcycle 1 stop_after "100"
	setcycle 1 target "right"
	setcycle 2 correct_response "None"
	setcycle 2 stop_after "150"
	setcycle 2 target "left"
	setcycle 3 correct_response "None"
	setcycle 3 stop_after "200"
	setcycle 3 target "right"
	setcycle 4 correct_response "left"
	setcycle 4 stop_after ""
	setcycle 4 target "left"
	setcycle 5 correct_response "right"
	setcycle 5 stop_after ""
	setcycle 5 target "right"
	setcycle 6 correct_response "left"
	setcycle 6 stop_after ""
	setcycle 6 target "left"
	setcycle 7 correct_response "right"
	setcycle 7 stop_after ""
	setcycle 7 target "right"
	setcycle 8 correct_response "left"
	setcycle 8 stop_after ""
	setcycle 8 target "left"
	setcycle 9 correct_response "right"
	setcycle 9 stop_after ""
	setcycle 9 target "right"
	setcycle 10 correct_response "left"
	setcycle 10 stop_after ""
	setcycle 10 target "left"
	setcycle 11 correct_response "right"
	setcycle 11 stop_after ""
	setcycle 11 target "right"
	run trial_sequence

define sketchpad error_feedback
	set duration 1000
	set description "Displays stimuli"
	draw textline center=1 color=white font_bold=no font_family=mono font_italic=no font_size=18 html=yes show_if=always text="Mistake!" x=0 y=0 z_index=0

define sequence experiment
	set flush_keyboard "yes"
	set description "Runs a number of items in sequence"
	run about_this_experiment always
	run instructions always
	run block_loop always
	run finished always

define sketchpad finished
	set duration "keypress"
	set description "Displays stimuli"
	draw textline center=1 color=white font_bold=no font_family=mono font_italic=no font_size=18 html=yes show_if=always text="The experiment is finished!<br /><br />Press any key to exit." x=0 y=0 z_index=0

define sketchpad fixdot
	set duration 500
	set description "Displays stimuli"
	draw fixdot color=white show_if=always style=default x=0 y=0 z_index=0

define sketchpad instructions
	set start_response_interval "no"
	set reset_variables "no"
	set duration "keypress"
	set description "Displays stimuli"
	draw textline center=1 color=white font_bold=no font_family=serif font_italic=no font_size=32 html=yes show_if=always text="<b>Instructions</b><br /><br />On each trial, you will see an arrow.<br />Press the left arrow key if the arrow points to the left.<br />Press the right arrow key if the arrow points to the right.<br /><br />... unless you see a red square,<br />in which case you don't press a key.<br /><br />Press any key to begin!" x=0 y=0 z_index=0

define keyboard_response kb_response
	set timeout "infinite"
	set flush "yes"
	set duration "keypress"
	set description "Collects keyboard responses"
	set allowed_responses "left;right"

define logger logger
	set description "Logs experimental data"
	set auto_log "yes"

define sketchpad stop_signal
	set duration "keypress"
	set description "Displays stimuli"
	draw rect color=red fill=1 h=64 penwidth=1 show_if=always w=64 x=-32 y=-32 z_index=0

define coroutines stop_signal_coroutines
	set function_name ""
	set flush_keyboard "yes"
	set duration 2000
	set description "Run items simultaneously"
	run stop_signal end=2000 runif="[stop_after] != \"\"" start="[stop_after]"
	run target end=0 runif=always start=0
	run kb_response end=2000 runif=always start=0

define sketchpad target
	set duration "keypress"
	set description "Displays stimuli"
	draw arrow arrow_body_length=0.8 arrow_body_width=0.5 arrow_head_width=30 color=white fill=1 penwidth=1 show_if="[target] = right" x1=-64 x2=64 y1=0 y2=0 z_index=0
	draw arrow arrow_body_length=0.8 arrow_body_width=0.5 arrow_head_width=30 color=white fill=1 penwidth=1 show_if="[target] = left" x1=64 x2=-64 y1=0 y2=0 z_index=0

define sequence trial_sequence
	set flush_keyboard "yes"
	set description "Runs a number of items in sequence"
	run fixdot always
	run stop_signal_coroutines always
	run error_feedback "[correct] = 0"
	run blank always
	run logger always