___________________________________________________________________________________________________________________ *AGGRESSION THEMED EMOTIONAL STROOP TASK - with voice recording* Note: this script does not automatically score the response but saves a voicerecord that needs to be analyzed separately for scoring purposes. ___________________________________________________________________________________________________________________ last updated: 10-17-2023 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC Script Copyright © 10-17-2023 Millisecond Software ___________________________________________________________________________________________________________________ BACKGROUND INFO ___________________________________________________________________________________________________________________ This script implements an Aggression Themed Emotional Stroop task. The classic Stroop paradigm demonstrates the interference of word meaning on naming the color in which the words are written as measured by reaction time/accuracy differences to color-meaning congruent and color-meaning incongruent combinations. The Aggression Stroop takes advantage of this basic Stroop interference effect by comparing responses to aggression related words, positive and negative words and neutral words. The implemented procedure is based on: Smith, P. & Waterman, M. (2003). Processing bias for aggression words in forensic and nonforensic samples. Cognition and Emotion, 17, 681-701. This script uses voice recordings. The accuracy of the responses needs to be manually scored based on recorded files or use Tools -> Speech Recognition -> Analyze Recorded Responses. ___________________________________________________________________________________________________________________ TASK DESCRIPTION ___________________________________________________________________________________________________________________ Participants are presented words from 5 different categories (aggression, neutral, positive, negative, color word) in four different colors (blue, red, yellow, green) and are asked to speak out loud the color of the word. ___________________________________________________________________________________________________________________ DURATION ___________________________________________________________________________________________________________________ the default set-up of the script takes appr. 5 minutes to complete ___________________________________________________________________________________________________________________ DATA OUTPUT DICTIONARY ___________________________________________________________________________________________________________________ The fields in the data files are: (1) Raw data file: 'emotionalstroopwithvoicerecording_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. target: the currently selected target word color: the currently selected color response: the participant's response (recording of response) Note: the recording needs to be manually scored latency: the response latency (in ms); measured from onset of word (2) Summary data file: 'emotionalstroopwithvoicerecording_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) ___________________________________________________________________________________________________________________ EXPERIMENTAL SET-UP ___________________________________________________________________________________________________________________ 1. Practice Block: 10 trials (not original; this script uses the words "one" to "ten" as practice stimuli) 2. Test Block: 125 trials (= 5 categories x 25 trials); trials are randomly sampled without replacement Since accuracy is not checked by this script (but has to be manually done based on the recorded voice files), no error messages can be presented. ___________________________________________________________________________________________________________________ STIMULI ___________________________________________________________________________________________________________________ * original stimuli by Smith & Waterman (2003) (due to a potential typo in the original article one word appeared under two categories (Appendix2); we replaced it with a word that is similar in length and appearance => section Editable STIMULI-> Negative Words) * each color appears 6 times in each category (the 7th pairing of word-color is random) * color words "red", "yellow", "blue" and "green" are not used as targets * 5 color words are repeats (see Smith & Waterman, 2003) ___________________________________________________________________________________________________________________ INSTRUCTIONS ___________________________________________________________________________________________________________________ not original; can be easily altered 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: /fixationCrossPresentationTime: time (in ms) that fixation cross is presented (default: 500ms)