The task (WAME1.0, shortened for Work, Aging, Mental Fatigue and Eye movement dynamics) is implemented in MATLAB 2015b using MATLAB GUIDE. It is compatible with the newer versions of the MATLAB, and works fine on the recent release of MATLAB 2018a 64-bit. The task was used in the study of the effect of change in mental demands as described in the following article: [1] Zargari Marandi, Ramtin, et al. "Reliability of Oculometrics During a Mentally Demanding Task in Young and Old Adults." IEEE Access 6 (2018): 17500-17517. It was also used in the study of (mental) fatigue in the following article: [2] Zargari Marandi, Ramtin, et al. "Eye movement characteristics reflected fatigue development in both young and elderly individuals." Scientific Reports 8.1 (2018): 13148. To use the code please follow the below instructions: 1. Open the MATLAB file “WAME1.m” 2. Run the code and respond to the questions appearing in the MATLAB Command window to adjust the task to the one you want to use. Adjustment for a prolonged computer task (40-min), as described in [2]: Input the mental load level (1, 2 or 3), then press Enter. 2 [The numbers mean low load (1), medium load (2), and high load (3). You can only use “2” for fatigue induction (a 40-min task), or any of 1, 2, or 3 for a 5-min task.] Input 11 For Reliability task, 30 for training task, or 0 for fatigue), then press Enter. 0 [The Reliability task (5-min) as described in [1], training task (5-min) without synchronization, fatigue: 30-min task with KSS questionnaires] Choose Synchronizations on (1) or off (0), then press Enter. 0 [This option can be available in case you use recording devices to synchronize with the task execution] Choose the day (1 or 2), then press Enter.1 [Choose 1 for fatigue, the predefined patterns for two days are different from each other.] Please do not change the files included in the same directory WAME1.m is located since they provide materials (predefined points) for the task. Once the task execution terminated, it produces a file in the same directory where WAME1.m is located. The file is named according to the subject ID (e.g. Sbj1 if you input 1 in the subject id box in the beginning of the task) including information regarding task performance (correct and incorrect clicks in each cycle and their timings), Karolinska Sleepiness Scale (KSS) ratings for fatigue task, and timing information of cycles and sub-cycles (Memorization Period, Washout Period, and Replication Period) Copyright Statement and further information: The task is only available for research and teaching, not for commercial use. The task (WAME1.0) is written by Ramtin Zargari Marandi as a part of his PhD studies at Aalborg University in Denmark. For any enquiry or questions please contact Ramtin Zargari Marandi by email ramtin.zargari@gmail.com or through https://www.researchgate.net/profile/Ramtin_Zargari_Marandi. The references to cite the task are [1] and [2].