___________________________________________________________________________________________________________________ *Demonstration for Self Assessment Manikin Pictorial Rating Scale* ___________________________________________________________________________________________________________________ Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC Date: 11-05-2017 last updated: 02-28-2022 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC Script Copyright © 02-28-2022 Millisecond Software ___________________________________________________________________________________________________________________ BACKGROUND INFO ___________________________________________________________________________________________________________________ This script implements a simple picture rating script that uses the Self Assessment Manikin Pictorial Rating Scale described in: Bradley, M. & Lang, P.J. (1994). Measuring Emotion: The Self-Assessment Manikin and The Semantic Differential. J. Behav. Ther. Exp. Psychiat, 25, 49-59. ___________________________________________________________________________________________________________________ TASK DESCRIPTION ___________________________________________________________________________________________________________________ Participants are shown 8 pictures (one at a time) and are asked to rate the emotions these pictures elicit on three dimensions: valence, arousal, dominance. The rating scales consist of a series of pictorial depictions of a manikin displaying those emotions. This script runs a 9-point scale: 5 picture anchors with spaces in between ___________________________________________________________________________________________________________________ DURATION ___________________________________________________________________________________________________________________ the default set-up of the script takes appr. 2 minutes to complete ___________________________________________________________________________________________________________________ DATA FILE INFORMATION ___________________________________________________________________________________________________________________ The default data stored in the data files are: (1) Raw data file: 'selfassessmentmanikin_raw*.iqdat' (a separate file for each participant)* build: The specific Inquisit version used (the 'build') that was run computer.platform: the platform the script was run on (win/mac/ios/android) date, time: date and time script was run subject, group: with the current subject/groupnumber session: with the current session id blockcode, blocknum: the name and number of the current block (built-in Inquisit variable) trialcode, trialnum: the name and number of the currently recorded trial (built-in Inquisit variable) Note: trialnum is a built-in Inquisit variable; it counts all trials run; even those that do not store data to the data file such as feedback trials. Thus, trialnum may not reflect the number of main trials run per block. trialCount: tracks the number of trials run targetIndex: tracks the itemnumber of the current image presented target: stores the current image file presented valenceSelected: 1 (very unpleasant) - 9 (very pleasant) arousalSelected: 1 (frantic) - 9 (chill) dominanceSelected: 1 (not in control at all) - 9 (100% in control) rt: the time (in ms) from onset of image to pressing 'submit' button (2) Summary data file: 'selfassessmentmanikin_summary*.iqdat' (a separate file for each participant)* inquisit.version: Inquisit version run computer.platform: the platform the script was run on (win/mac/ios/android) startDate: date script was run startTime: time script was started subjectid: assigned subject id number groupid: assigned group id number sessionid: assigned session id number elapsedTime: time it took to run script (in ms); measured from onset to offset of script completed: 0 = script was not completed (prematurely aborted); 1 = script was completed (all conditions 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 script implements a simple demonstration to use the Self Assessment Manikin Scales for picture ratings. * 8 trials (the order of the images is determined randomly) Note: this script automatically adapts to run more/fewer trials if the number of images is changed under item.images. * participants need to select one of the response boxes for each of the three dimensions (valence, arousal, dominance) There are 5 picture anchors and 4 empty boxes in between (=9 anchor points) ___________________________________________________________________________________________________________________ STIMULI ___________________________________________________________________________________________________________________ provided by Millisecond Software - can be edited under section Editable Stimuli Note: the script runs as many self-assessment trials as there are images provided under item.images. By default, the script runs 8 trials. ___________________________________________________________________________________________________________________ INSTRUCTIONS ___________________________________________________________________________________________________________________ provided by Millisecond Software - 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: /picSize: the size of the target picture relative to canvas height (default: 20%) /picPosition: the vertical position of the target picture relative to canvas height (default: 5%) Note: 0% = top of canvas - 100% = bottom of canvas /ratingScalePosition: the vertical position of the top of the rating scales relative to canvas height (default: 30%) /ratingScaleScalingFactor: a helper factor to scale the rating scale (default: 0.8) Note: if a larger pic Size is chosen, the rating scale might need to be scaled down to fit on the canvas /iti: the intertrial interval (in ms) (default: 100ms)