___________________________________________________________________________________________________________________ *Millisecond COGDRAS* Batch script to run a COGDRAS session ___________________________________________________________________________________________________________________ Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC Date: 09-09-2020 last updated: 09-10-2020 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC Script Copyright © 09-10-2020 Millisecond Software ___________________________________________________________________________________________________________________ BACKGROUND INFO ___________________________________________________________________________________________________________________ This script implements Millisecond Software's version of the Cognitive Drug Research Computerized Assessment System (COGDRAS). The script runs 8 individual cognitive tests testing memory, attention and reaction times as a batch. A final script collects all the relevant summary variables. A starting script provides a brief overview of the testing session and practices the response buttons. The default response buttons are: Q = yes-key P = no-key (to change response buttons FOR THE ENTIRE batch go to section Editable Parameters in this script and choose your response keys. Note that script ms_cogdras_start.iqx has to be edited to reflect the change) To change the order of the tests OR remove any of the tests from the batch go to section EXPERIMENT and follow further instructions. COGDRAS Reference: Nicholl, C.G. et al (1995). THE COGNITIVE DRUG RESEARCH COMPUTERIZED ASSESSMENT SYSTEM IN SPEED OF THE ESSENCE? THE EVALUATION OF EARLY DEMENTIA. INTERNATIONAL JOURNAL OF GERIATRIC PSYCHIATRY, VOL. 10: 199-206. ___________________________________________________________________________________________________________________ TASK DESCRIPTION ___________________________________________________________________________________________________________________ COGDRAS runs 8 cognitive tests in the following order: 1. Immediate Word Recognition Test (immediatewordrecognition_cogdras.iqx) 2. Picture Presentation (picturepresentation_cogdras.iqx) 3. Number Vigilance Test (numbervigilance_cogdras.iqx) 4. Simple Reaction Time Test (simplereactiontime_cogdras.iqx) 5. Choice Reaction Time Test (choicereactiontime_cogdras.iqx) 6. Memory Scanning Test (memoryscanning_cogdras.iqx) 7. Delayed Word Recognition Test (delayedwordrecognition_cogdras.iqx) 8. Picture Recognition Test (picturerecognition_cogdras.iqx) Each test can be run within this batch script or as stand-alone tests. Each test takes approx. 2-3 minutes to run. ___________________________________________________________________________________________________________________ DURATION ___________________________________________________________________________________________________________________ the default set-up of the script takes appr. 15-20 minutes to complete ___________________________________________________________________________________________________________________ EXPERIMENTAL SET-UP ___________________________________________________________________________________________________________________ check individual scripts for more information ___________________________________________________________________________________________________________________ STIMULI ___________________________________________________________________________________________________________________ check individual scripts for more information. __________________________________________________________________________________________________________________ INSTRUCTIONS ___________________________________________________________________________________________________________________ check individual scripts for more information and to edit instructions.