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								TOKEN TEST - computerized adaptation
SCRIPT INFO

Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 10-15-2015
last updated: 03-28-2016 by K.Borchert (katjab@millisecond.com) for Millisecond Software LLC

Copyright © 03-28-2016 Millisecond Software


BACKGROUND INFO

											*Purpose*
This script implements a computerized adaptation of the original Token Test for Aphasia as described in:

DeRenzi, E. & Vignolo, L.A. (1962). The Token Test: A Sensitive Test to detect Receptive disturbances
in Aphasiacs, Brain, 85, 665-678.


											  *Task*
Participants are presented rows of rectangles and circles in different colors and are given instructions 
of what to do with these rectangles and circles (Example: "Click on the red rectangle").
The test has 5 phases (10 trials each) that are getting progressively more difficult.


DATA FILE INFORMATION: 
The default data stored in the data files are:

(1) Raw data file: 'TokenTest_raw.iqdat' (a separate file for each participant)

build:							Inquisit build
computer.platform:				the platform the script was run on
date, time, subject, group:		date and time script was run with the current subject/groupnumber 
blockcode, blocknum:			the name and number of the current block
trialcode, trialnum: 			the name and number of the currently recorded trial
									(Note: not all trials that are run might record data; by default data is collected unless /recorddata = false is set for a particular trial/block) 
/trialcount_phase:				number of trials run per phase
/itemnumber:					the number of the currently selected item 
/instructions:					stores the currently selected instructions
/attempts:						stores the number of attempts per trial (Max 2)
response:						the participant's response
									Note: 
									lS_red = large square red; sS_red = small square red; lC_red = large circle red; sC_red = small circle red (etc.)
									R2C1 = empty cell of row 2 column 1 - R2C5 (empty cells below squares) - used in phase 5 only
										R2C1 = below red square; R2C2 = below blue square; R2C3 = below green square; R2C4 = below yellow square; R2C5 = below purple square
									R4C1 = empty cell of row 4 column 1 - R4C5 (empty cells below circles) - used in phase 5 only
										R4C1 = below blue circle; R4C2 = below purple circle; R4C3 = below red circle; R4C4 = below yellow circle; R4C5 = below green circle
									background = participant clicked the canvas and not any of the shapes 
									0 = noresponse
									
correct:						the correctness of the response (1 = correct; 0 = incorrect)
latency: 						the response latency (in ms)
/points:						stores the points for the current trial (0-2)
/phasepoints:					stores the accumulated points for the current phase
/totalpoints:					stores the accumulated points across phases 
/repeat:						0 = the trial will not be repeated; 1 = the trial will be repeated


(2) Summary data file: 'TokenTest_summary*.iqdat' (a separate file for each participant)

script.startdate:				date script was run
script.starttime:				time script was started
script.subjectid:				subject id number
script.groupid:					group id number
script.elapsedtime:				time it took to run script (in ms)
computer.platform:				the platform the script was run on
/completed:						0 = script was not completed (prematurely aborted); 1 = script was completed (all conditions run)
/points_phase1-
/points_phase5:					stores the accumulated points separately for each of the 5 phases (Max for each phase: 20)
/totalpoints:					stores the accumulated points across phases (Max: 100)



EXPERIMENTAL SET-UP

The test runs 5 phases: each phase is getting progressively more difficult

Phase 1: 
a row of large squares (random order of colors: red, purple, blue, green, yellow) 
a row of large circles (random order of colors: red, purple, blue, green, yellow)
10 simple instructions such as "Click on the yellow square" - randomized order for each participant
Each task has a predetermined time limit (see Editable Parameters) and can be repeated once

Phase2: 
a row of large squares (random order of colors: red, purple, blue, green, yellow) 
a row of small squares (random order of colors: red, purple, blue, green, yellow) 
a row of large circles (random order of colors: red, purple, blue, green, yellow)
a row of large circles (random order of colors: red, purple, blue, green, yellow)
10 simple instructions such as "Click on the large yellow square" - randomized order for each participant
Each task has a predetermined time limit (see Editable Parameters) and can be repeated once

Phase 3: 
a row of large squares (random order of colors: red, purple, blue, green, yellow) 
a row of large circles (random order of colors: red, purple, blue, green, yellow)
10 instructions such as "Click on the yellow square and the blue circle" - randomized order for each participant
Each task has a predetermined time limit (see Editable Parameters) and can be repeated once

Phase4: 
a row of large squares (random order of colors: red, purple, blue, green, yellow) 
a row of small squares (random order of colors: red, purple, blue, green, yellow) 
a row of large circles (random order of colors: red, purple, blue, green, yellow)
a row of large circles (random order of colors: red, purple, blue, green, yellow)
10 audio instructions such as "Click on the large yellow square and the small blue circle" - randomized order for each participant
Each task has a predetermined time limit (see Editable Parameters) and can be repeated once

Phase5: 
a row of large squares (random order of colors: red, purple, blue, green, yellow) 
(empty row)
a row of large circles (random order of colors: red, purple, blue, green, yellow)
(empty row)
10 idiosyncratic audio instructions such as "Drop the yellow circle on the red square"* - order is the same for each participant
Each task has a predetermined time limit (see Editable Parameters) and can be repeated once

* the original DeRenzi & Vignolo (1962) study uses 20 instructions; not all of these 20 instructions can be easily
translated from a 3D-world onto a 2-D computer screen. 

Scoring in this script:
Participants get 2 chances per trial.
First Run: if correct 2 points
Second Run: if correct 1 point

Maximum Number of Points: 5 phases x 10 trials x 2 = 100 points

INSTRUCTIONS
see section Editable Instructions.
By default, the instructions are presented visually (but can be easily exchanged with auditory ones).

EDITABLE CODE:
check below for (relatively) easily editable parameters, stimuli, instructions etc. 
Keep in mind that you can use this script as a template and therefore always "mess" with the entire code to further customize your experiment.

The parameters you can change are:

/run_phase1:				true = phase1 is run; false = phase1 is skipped (default: true)
/run_phase2:				true = phase1 is run; false = phase2 is skipped (default: true)
/run_phase3:				true = phase1 is run; false = phase3 is skipped (default: true)
/run_phase4:				true = phase1 is run; false = phase4 is skipped (default: true)
/run_phase5:				true = phase1 is run; false = phase5 is skipped (default: true)

/instructionsduration:		the time in ms for instruction trials (default: 5000)
/phase1_timelimit:			the time in ms for phase 1 task (default: 10000)
/phase2_timelimit:			the time in ms for phase 2 task (default: 12000)
/phase3_timelimit:			the time in ms for phase 3 task (default: 15000)
/phase4_timelimit:			the time in ms for phase 4 task (default: 18000)
/phase5_timelimit:			the time in ms for phase 1 task (default: 20000)
/iti:						the time in ms for the trials in between tasks (either next or repeat message) (default: 2000)

/largesize:					the size of the large items in canvas height percentage (default: 20%)
/smallsize:					the size of the small items in canvas height percentage (default: 10%)


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