Return to the Inattentional Blindness Task page
						
									INATTENTIONAL BLINDNESS- Paper & Pencil Input

SCRIPT INFO

Script Author: An Raes
last updated: 01-14-2016 by K.Borchert (katjab@millisecond.com) for Millisecond Software LLC

Millisecond Software thanks An Raes for sharing this script!


BACKGROUND INFO

											*Purpose*
This script runs an Inattentional Blindness Task adapted from:

Most, S. B., Simons, D. J., Scholl, B. J., Jimenez, R., Clifford, E., & Chabris, C. F. (2001). 
How not to be seen: The contribution of similarity and selective ignoring to sustained 
inattentional blindness. Psychological Science, 12, 9-17. 


											  *Task*
Participants view several videos that depict members of 4 spider-like figures in white and black floating around
in a field. The task is to count how often a certain kind of figure bumps into the walls.
At some point during the experiment, a black spider 'walks' through the field from right to left.
											  

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

(1) Raw data file: 'InattentionalBlindness_rawdata_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) 
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)

(2) Summary data file: 'InattentionalBlindness_rawdata_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)


EXPERIMENTAL SET-UP
2 trials that present videos without target
2 trials that present video with a target (here: spider) without target alert -> however, instructions at the end ask whether something unusual was noticed
1 trial that presents video with a target with explicit target alert
STIMULI
see section Editable Stimuli

INSTRUCTIONS
see 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.

Copyright © Millisecond Software. All rights reserved.
Contact | Terms of Service | Security Statement | Employment