Home-Based Computerized Cognitive Training
Neuro-World
The Neuro-World (Woorisoft Inc., Daegu, Republic of Korea) HB-CCT (Version: 1.0, Server-OS: Microsoft Windows Server 2008 Enterprise SP2 (64bit), DBMS: MySQL 5.5, WAS: IIS 7, PHP: PHP 5.6, Client-OS: over Android 6.0) was used in this study. The software trains attention, visual perception, memory, and executive functions which are sub-items of cognition. The program composition and goals for each sub-category are as follows Program screen of home-based cognitive rehabilitation program (Neuro-World). (a) Sustained attention training, (b) selective attention training, (c) visual perception: exploration training, (d) visual perception: eye-hand coordination training, (e) short-term memory training, (f) working memory: work scheduling training, (g) working memory: time planning training, and (h) executive function training.Attention training was divided into two areas: sustained and selective attention training Visual perception training comprised two areas: exploration and hand-eye coordination training Memory training consisted of short-term memory and working memory training Each program ran for 3 min, the next training automatically commenced. Therefore, approximately 24 min was required to complete all 8 trainings. The program was designed to automatically end after completion of all 8 trainings. The hardware for performing the HB-CCT program was a tablet PC [(Samsung Co. Ltd., Seoul, Republic of Korea, Galaxy Tab S [(SM-T800]), CPU Octa-core [(Chipset: Exynos 5420 Octa]), RAM: 3 GB)]. Tablet PCs were distributed to the study participants free of charge and collected after the intervention was complete. Additionally, prior to the intervention, instructions on the use of tablet PCs and wireless fidelity (Wi-Fi) settings were provided. The initial login was performed by the administrator using the participants’ user numbers during the initial education; thereafter, the app was set up to automatically log in when clicked. Instructions and education were conducted when participants visited the hospital to receive the baseline test and tablet PC. After completing the HB-CCT intervention at home, participants visited the hospital to return the tablet PC, and post-assessment was conducted.For HB-CCT, at-home Wi-Fi was necessary. If participants did not have Wi-Fi at home, a pocket Wi-Fi (i.e., a small portable Internet router) was provided. When a call was received from a participant who did not know how to connect the Wi-Fi to the tablet PC, the participant was provided instructions over the phone. If needed, the manager also visited the participant’s home to set up the initial Wi-Fi, after which it would automatically connect. When participants performed HB-CCT, data were sent to the manager in real time. Issues occurring during interventions were resolved through phone calls, video calls, remote access, or visits.