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


Script Author: An Raes
last updated: 06-15-2018 by K.Borchert ( for Millisecond Software LLC

Millisecond Software thanks An Raes for sharing this script!


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. 

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.

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)

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
see section Editable Stimuli

see section Editable Instructions

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 | Privacy Statement | Security Statement | GDPR
Website Security Test