___________________________________________________________________________________________________________________ FACE EMOTION PARADIGM ___________________________________________________________________________________________________________________ Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC Date: 11-11-2013 last updated: 02-22-2022 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC Script Copyright © 02-22-2022 Millisecond Software ___________________________________________________________________________________________________________________ BACKGROUND INFO ___________________________________________________________________________________________________________________ This script implements a Face Emotion Paradigm; a task for Emotion Recognition of different ethnic groups. The implemented procedure is based on: Beaupre´, M.G., Hess, U. (2005). Cross-cultural emotion recognition among Canadian ethnic groups. Journal of Cross-Cultural Psychology 36, 355–370. Note: this script runs with placeholder stimuli. To get access to the original stimuli, please contact Dr. Ursula Hess directly. ___________________________________________________________________________________________________________________ TASK DESCRIPTION ___________________________________________________________________________________________________________________ Participants are presented pictures of people with different facial expressions. Afterwards they are asked to 1) rate the facial expression on 10 emotion dimensions/profiles 2) rate the likelihood of the daily occurrence of the presented facial expression ___________________________________________________________________________________________________________________ DURATION ___________________________________________________________________________________________________________________ the default set-up of the script takes appr. 45 minutes to complete ___________________________________________________________________________________________________________________ DATA FILE INFORMATION ___________________________________________________________________________________________________________________ The default data stored in the data files are: (1) Raw data file: 'faceemotion_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. parameters.group: 1 = run with half design set 1 2 = run with half design set 2 emotion: stores the current emotion (e.g. "anger") ethnicity: stores the ethnicity of the current encoder (default) 1 = Subsaharan African 2 = Chinese 3 = French Canadian Note: not accurate for practice trials gender: stores the gender of the current encoder (default) 1 = Female 2 = Male Note: not accurate for practice trials encoder: stores the "itemnumber" of the current encoder (1-12) intensity: stores the current intensity level of the emotion Note: by default, this script runs only 1 intensity level stimulusitem: stores the current stimulus (picture) emotion_accuracy: 1 = target category was rated the highest of all categories in the emotion profile task 0 = otherwise Note: values.emotion_accuracy Beaupre´, M.G., Hess, U. (2005): "The level of accuracy was calculated from the intensity scales such that when the target scale received the highest score, judgment was considered as accurate and a score of 1 was given; otherwise, a score of 0 was given." (p.359/360) daily_occurence: the selected probability that presented emotion is presented on a daily basis slider.anger.response - slider.surprise.response: the selected responses for the 10 questions of the emotion profile tasks (2) Summary data file: 'faceemotion_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) group: 1 = run with half design set 1 2 = run with half design set 2 prop_emotion_accuracy: proportion of emotion profile responses that rated the target emotion the highest (across all emotions; not counting neutral) ___________________________________________________________________________________________________________________ EXPERIMENTAL SET-UP ___________________________________________________________________________________________________________________ (A )Complete design: 3 encoder ethnicities (e.g. French Canadian, Subsaharan Africans, Chinese) x 2 genders x 6 emotions (anger, happiness, sadness, fear, disgust, shame) x 4 encoders = 144 trials Half design: the total set was broken down into 2 sets in Beaupre´& Hess (2005). Each set was made up of expressions by 2 males and 2 females from each cultural group (not 4). => 3 encoder ethnicities (French Canadian, Subsaharan Africans, Chinese) x 2 genders x 6 emotions (anger, happiness, sadness, fear, disgust, shame) x 2 encoders = 72 trials => sets were counterbalanced between participants in Beaupre´ & Hess (2005). !NOTE: this script implements only the half design. To run the complete design, dublicate the script with the second set of stimuli and set Editable Parameters -> parameters.group = 2. !NOTE: this script runs only 1 intensity level for each emotion. To add more intensity levels, go to section Editable Stimuli and follow further instructions !NOTE: this script runs 3 encoder ethnicities. To add more, follow instructions under section Editable Stimuli (B) SET-UP - 1 practice block with 2 emotion trials (e.g. encoders not of the current set) - 1 test block: selects one of the 6 emotion trials randomly without replacement Trial Sequence: 72 trials (half design) Picture (default: 5000ms) -> Emotion Profile (order of questions is random) -> Daily Occurrence question -> Intertrial Interval (default: 0ms) ___________________________________________________________________________________________________________________ STIMULI ___________________________________________________________________________________________________________________ this script runs with placeholder stimuli. To get access to the original stimuli, please contact Dr. Ursula Hess directly. The stimuli can be edited under section Editable Stimuli. ___________________________________________________________________________________________________________________ INSTRUCTIONS ___________________________________________________________________________________________________________________ The instructions are not original and can be easily edited unter 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: 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: /group: 1 = run with half design set 1 2 = run with half design set 2 /pictureheight: set the height (width will be adjusted automatically) of the pictures (default: 50% of screen height) durations: /stimulusduration: set the duration of the stimuli (pictures) in ms (default: 5000ms) /ITI: set the duration of the intertrial interval in ms (default: 0ms) /emotionprofile_instruction: edit the instructions for the emotionprofile task /dailyoccurrence_instruction: edit the instructions for the daily-occurrence task