___________________________________________________________________________________________________________________ *** Self-Esteem Matrix Task *** *** Attentional bias re-training*** *** ABMT - attentional bias modification task*** *** Visual search attentional training task **** ___________________________________________________________________________________________________________________ Script and stimuli generously shared by Dr. Stephane Dandeneau. Thank you! last updated: 02-28-2022 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC ___________________________________________________________________________________________________________________ BACKGROUND INFO ___________________________________________________________________________________________________________________ This script runs the Self-Esteem Matrix Task by: Dandeneau, S.D., & Baldwin, M. W. (2004). The Inhibition of socially rejecting information among people with high versus low self-esteem: The Role of Attentional bias and the effects of bias reduction training. Journal of Social and Clinical Psychology, Vol. 23(4), 584-602. Dandeneau, S. D., Baldwin, M. W., Baccus, J. R., Sakellaropoulo, M., & Pruessner, J. C. (2007). Cutting stress off at the pass: Reducing stress and hypervigilance to social threat by manipulating attention. Journal of Personality and Social Psychology, 93(4), 651-666. ___________________________________________________________________________________________________________________ TASK DESCRIPTION ___________________________________________________________________________________________________________________ Participants view a 4x4 matrix of images and are instructed to find a target stim as fast as possible (visual search task). In the experimental condition, the target is a smiling face (all other images are frowny faces). In the control condition, the target is a 5-petal flower (all other images are 7-petal flowers). ___________________________________________________________________________________________________________________ DURATION ___________________________________________________________________________________________________________________ the default set-up of the script takes appr. 7 minutes to complete ___________________________________________________________________________________________________________________ DATA FILE INFORMATION ___________________________________________________________________________________________________________________ The default data stored in the data files are: (1) Raw data file: 'sematrixtask_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. tasktype: 1 = experimental condition (with faces); 2 = control condition (with flowers) Note: assignment is counterbalanced by groupnumber response: the participant's final (correct) response correct: the correctness of the INITIAL response (1 = correct; 0 = incorrect) Note: participants can only move on if they select the target, however, the accuracy of the initial selection is stored. latency: the response latency of the final response (in ms) picture.target.currentitem: the currently selected target picture / targetstim: stores the itemnumber of the current target stimulus / targetposition: positions 1-16 in a 4 x 4 matrix Row1: 1-4 Row2: 5-8 Row3: 9-12 Row4: 13-16 trial.tasktrial.totalcount: counts all trials tasktrial run by this script trial.tasktrial.totalcorrectcount: counts all initially correct tasktrials run by this script trial.tasktrial.totalerrorcount: counts all initially incorrect tasktrials run by this script trial.tasktrial.totalpercentcorrect: percent correct of initially correct tasktrials trial.tasktrial.totalmeanlatency: mean latency (in ms) of all tasktrials (2) Summary data file: 'sematrixtask_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) tasktype: 1 = experimental condition (with faces); 2 = control condition (with flowers) Note: assignment is counterbalanced by groupnumber trial.tasktrial.totalcount: counts all trials tasktrial run by this script trial.tasktrial.totalcorrectcount: counts all initially correct tasktrials run by this script trial.tasktrial.totalerrorcount: counts all initially incorrect tasktrials run by this script trial.tasktrial.totalpercentcorrect: percent correct of initially correct tasktrials trial.tasktrial.totalmeanlatency: mean latency (in ms) of all tasktrials ___________________________________________________________________________________________________________________ EXPERIMENTAL SET-UP ___________________________________________________________________________________________________________________ 2 conditions: experimental vs. control (assignment by groupnumber) Experimental Condition: 4x4 matrix with 16 images * face stimuli -> 1 target: smiling face -> 15 distractors: frowny faces Control Condition: 4x4 matrix with 16 images * drawings of flowers -> 1 target: 5 petal flower -> 15 distractors: 7 petal flowers General: * 4 blocks of 28 trials = 112 trials; after each block there is a rest trial * 16 different actors => each actor is provided as a target stim (smiling) and as a distractor stim (frowny) * position of target randomly determined with the constraint that the targets appear in each cell equally often (default: 7 times in each of the 16 cells) * 16 different targets: randomly determined (7 repetitions of each target-> 112 trials) * 15 distractors: all faces that are not used as the target are used as distractors; they are randomly assigned to the remaining 15 cell positions ___________________________________________________________________________________________________________________ STIMULI ___________________________________________________________________________________________________________________ see section Editable Stimuli ___________________________________________________________________________________________________________________ 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: / stimsize: sets the size of stim pictures in proportion to the canvas height (default: 21.25%) Note: canvas is defined under section DEFAULTS below / leftmargin- / topmargin: sets the screen positions of the left and top margins of the matrix relative to the canvas height and width (default: 10%)