___________________________________________________________________________________________________________________ *Penn Emotion Recognition Task (ER-40)* (French version) ___________________________________________________________________________________________________________________ Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC Date: 02-23-2018 last updated: 02-25-2022 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC Script Copyright © 02-25-2022 Millisecond Software Millisecond Software thanks Chanelle Lefebvre for providing French translations! ___________________________________________________________________________________________________________________ BACKGROUND INFO ___________________________________________________________________________________________________________________ This script implements the Penn Emotion Recognition Task (ER-40); a task to assess facial emotion recognition ability using images of 4 different emotions (anger, fear, happiness, sadness) in low and high intensity and neutral expressions. References: Kohler, C., Turner, T., Gur, R., & Gur, R. (2004). Recognition of Facial Emotions in Neuropsychiatric Disorders. CNS Spectrums, 9(4), 267-274. doi:10.1017/S1092852900009202 Images: https://www.med.upenn.edu/bbl/2dfaces.html Description of ER-40: Carter et al (2009). CNTRICS Final Task Selection: Social Cognitive and Affective Neuroscience–Based MeasuresSchizophrenia Bulletin vol. 35 no. 1 pp. 153–162 ___________________________________________________________________________________________________________________ TASK DESCRIPTION ___________________________________________________________________________________________________________________ "The ER-40 is a computerized measure designed in both-PowerLaboratoryandMacromediaFlashplatforms which allows testing either on dedicated hardware or through the internet. Participants are instructed to examine a series of faces and identify the expressed emotion from 5 possible choices. The task begins with a practice trial in which feedback is provided. If the participant’s response is incorrect, she/he is informed of the correct answer and is directed back to the practice trial until a correct response is made. All other stimuli are presented in randomized order, and the average testing time is under 5 min." (Carter et al, 2009, p.156) ___________________________________________________________________________________________________________________ DURATION ___________________________________________________________________________________________________________________ the default set-up of the script takes appr. 3 minutes to complete ___________________________________________________________________________________________________________________ DATA FILE INFORMATION ___________________________________________________________________________________________________________________ The default data stored in the data files are: (1) Raw data file: 'pennemotionrecognitiontask_french_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. emotion: 1 = happy; 2 = sad; 3 = anger; 4 = fear; 5 = neutral intensity: 0 = no intensity (neutral); 1 = low; 2 = high gender: 1 = female; 2 = male stimulusitem: the presented stimuli in order of trial presentation (here: the file name of the picture presented) response: the participant's response (the selected emotion) correct: accuracy of response: 1 = correct response; 0 = otherwise latency: the response latency (in ms); measured from: onset of image countCorrect: number of correctly selected emotions (2) Summary data file: 'pennemotionrecognitiontask_french_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) propCorrect: proportion correct countCorrect: number of correctly selected emotions meanRT: mean reaction time (in ms) (across correct and incorrect selections) meanCorrRT: mean correct reaction time (in ms) medianRT: median reaction time (in ms) (across correct and incorrect selections) medianCorrRT: median correct reaction time (in ms) * 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 ___________________________________________________________________________________________________________________ (1) Practice Trial * the practice trial is repeated until the correct response is provided (2) Test: 40 trials - 2 gender x 5 emotions x 2 intensities x 2 examples each - order is randomized - no time limit ___________________________________________________________________________________________________________________ STIMULI ___________________________________________________________________________________________________________________ 40 face images - 20 female faces (4 angry, 4 fearful, 4 happy, 4 sad, 4 neutral) - 20 male faces (4 angry, 4 fearful, 4 happy, 4 sad, 4 neutral) "Stimuli are balanced for poser’s gender, age, and ethnicity, and for each emotion category, 4 high-intensity and 4 low-intensity expressions are included." (Carter et al, 2009, p.155) Images: https://www.med.upenn.edu/bbl/2dfaces.html ___________________________________________________________________________________________________________________ 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. The parameters you can change are: /showSummaryFeedback: true (1): participants are given the number of correctly selected emotions and their median reaction time false (0): no performance feedback is provided at the end /picSize: the proportional size (relative to canvas) of the images (default: 40%) /ITI: inter trial interval in ms (default: 0ms): blank screen after each trial