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										SERIAL 7 (SERIAL 3) TASK
SCRIPT INFO

Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 06-20-2016
last updated: 08-16-2016 by K.Borchert (katjab@millisecond.com) for Millisecond Software LLC

Script Copyright © 08-16-2016 Millisecond Software


BACKGROUND INFO 

											*Purpose*
This script implements a Serial 7/Serial 3 task as described in:
Kennedy, D.O. & · Andrew B. Scholey, A.B. (2000). Glucose administration, heart rate and cognitive performance:
effects of increasing mental effort. Psychopharmacology (2000) 149:63–71.

Note: the Serial 7 tasks uses written input instead of oral input


											  *Task*
Participants are given a randomly generated 3 digit number between 900-999 and are asked to subtract 7 (3)
as often as they can within a 2 minute time frame (adjustable).	
Participants enter their solution by selecting digit buttons 0-9 with the mouse.
Responses can be corrected before submit.										  
  


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

(1) Raw data file: 'Serial7_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) 
/currentNumber:					contains the current Number to be presented
/targetDiff:					contains the target difference between numbers
/correctSolution:				stores the current correct solution
/proposedSolution:				stores the entered proposed solution for the current subtraction
/nextNumber:					contains the next number to be presented (based on response)
stimulusitem:					the presented stimuli in order of trial presentation
response:						the participant's response
correct:						the correctness of the response (1 = correct; 0 = incorrect)
latency: 						the response latency (in ms)
/countResponses:				counts the numbered of given responses
/countErrors:					counts the number of errors made


(2) Summary data file: 'Serial7_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)
/countSerial3:					counts the number of Serial3 tasks run
/countResponses3_1:				stores the number of responses made for the first Serial 3 run
/countErrors3_1:				stores the number of errors made for the first Serial 3 run
/countResponses3_2:				stores the number of responses made for the second Serial 3 run
/countErrors3_2:				stores the number of errors made for the second Serial 3 run
/countSerial7:					counts the number of Serial7 tasks run
/countResponses7_1:				stores the number of responses made for the first Serial 7 run
/countErrors7_1:				stores the number of errors made for the first Serial 7 run
/countResponses7_2:				stores the number of responses made for the second Serial 7 run
/countErrors7_2:				stores the number of errors made for the second Serial 7 run


* separate data files: to change to one data file for all participants (on Inquisit Lab only), go to section
"DATA" and follow further instructions


EXPERIMENTAL SET-UP

This Inquisit cript provides building blocks to run Serial7 and Serial3 tasks and can store summary variables 
for 2 repetitions of each task (if more repetitions should be run, additional summary variables need to be added manually).
By default, this script runs one Serial3 task followed by one Serial7 task.

Input is collected via mouse selections of digit-buttons that are displayed in a circle.

STIMULI
randomly generated 3 digit start numbers (generated without replacement across blocks) between 900-999

INSTRUCTIONS
are provided by Millisecond Software. They can be edited under section EDITABLE INSTRUCTIONS.

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:

/taskDuration:					task duration in ms (default: 120000ms = 2 min)					
/circleproportion:				proportion of canvas height used for the circle radius of response buttons (default: 0.3)
/ShowLastResponse:					true (1) = the last entered number is displayed for the current trial
								false (0) = the last entered number is not displayed for the current trial (default)
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