___________________________________________________________________________________________________________________ *STROOP TEST - voice recognition input* Note: test to ensure that voice recognition works. Script record voicerecords as backup. ___________________________________________________________________________________________________________________ last updated: 03-01-2022 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC Script Copyright © 03-01-2022 Millisecond Software ___________________________________________________________________________________________________________________ BACKGROUND INFO ___________________________________________________________________________________________________________________ This script implements an example Stroop test with voice recognition. The classic Stroop paradigm demonstrates the interference of word meaning on the naming of the color in which the words are written as measured by reaction time/accuracy differences to color-meaning congruent and color-meaning incongruent combinations. This script runs a color naming task and a word naming task. The order is counterbalanced by groupnumber. Reference: Stroop, J, R. (1935). Studies of interference in serial verbal reactions. Journal of Experimental Psychology, 18, 643-662. ___________________________________________________________________________________________________________________ TASK DESCRIPTION ___________________________________________________________________________________________________________________ Participants are asked to do a Color Naming and a Word Naming Task. For both task, color words (e.g. red, blue) are presented in different colors. In some of the cases, the color word (e.g. red) and its color (e.g. red) are congruent; in other cases the color word (e.g. red) and its color (e.g. blue) are discongruent. For the Color Naming Task, participants have to say the color of the word as fast as possible. For the Word Naming Task, participants have to say the actual word as fast as possible disregarding their color. ___________________________________________________________________________________________________________________ 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: 'strooptask_withvoicerecognition_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. color: contains current color of the word congruence: 1= congruent; 2 = incongruent stimulusitem: the presented stimuli in order of trial presentation response: the participant's response (spoken word - as recognized by voice recognition software) correct: accuracy of response: 1 = correct response; 0 = otherwise latency: the response latency (in ms); measured from: (2) Summary data file: 'strooptask_withvoicerecognition_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) mean corrRT congruentColor: mean latency (in ms) for correct congruent stimuli in the color block mean corrRT incongruentColor: mean latency (in ms) for correct incongruent stimuli in the color block ErrorRate congruentColor: errorate for congruent stimuli in the color block ErrorRate incongruentColor: errorate for congruent stimuli in the color block mean corrRT congruentWord: mean latency (in ms) for correct congruent stimuli the word naming block mean corrRT incongruentWord: mean latency (in ms) for correct incongruent stimuli the word naming block ErrorRate congruentWord: errorate for congruent stimuli in the word naming block ErrorRate incongruentWord: errorate for congruent stimuli in the word naming block Note: script also collects voicerecords as .wav files for manual checks ___________________________________________________________________________________________________________________ EXPERIMENTAL SET-UP ___________________________________________________________________________________________________________________ This script runs a color naming task and a word naming task. The order is counterbalanced by groupnumber. odd groupnumbers -> color naming task, word naming task even groupnumbers -> word naming task, color naming task Color Naming Task: 25 trials - 5 repetitions of the each of the 5 color words (red, green, blue, black, yellow) is presented in each of the 5 colors once (= 4 incongruent: 1 congruent trials) Participants have to name the color of the word as fast as possible (disregarding the word's meaning) Word Naming Task: 25 trials - 5 repetitions of the each of the 5 color words (red, green, blue, black, yellow) is presented in each of the 5 colors once. Participants have to say the word as fast as possible (disregarding its color) ___________________________________________________________________________________________________________________ STIMULI ___________________________________________________________________________________________________________________ The five color words: red, green, blue, black, yellow ___________________________________________________________________________________________________________________ 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.