Study: NCT04644172

Intervention type: BEHAVIORAL
Group type: OTHER
Intervention: Speed of Processing Training
Description: Testing involves trainer-guided practice of computerbased video games. The games require the player to identify targets that are presented very briefly. In the first level, the player has to identify a target at the center of the screen. In the second level, the player has to identify targets at the center and edge of the screen simultaneously. In the third level, other objects, which serve as decoys, are added. SOPT is aimed at improving the fluidity of mental processing speed (not psychomotor reaction time) so that trainees can process more complex information over briefer periods of time. The training involves practice with feedback. The trainer teaches some task-specific strategies, offer suggestions, encouragement, and personalized modification of difficulty for enhancing performance. Speed and task difficulty level are tailored to trainee ability, trainees practice blocks of 16 trials with a goal of achieving performance of 10 to 12 correct trials for each training block.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Speed of Processing Training
Description: Testing involves trainer-guided practice of computerbased video games. The games require the player to identify targets that are presented very briefly. In the first level, the player has to identify a target at the center of the screen. In the second level, the player has to identify targets at the center and edge of the screen simultaneously. In the third level, other objects, which serve as decoys, are added. SOPT is aimed at improving the fluidity of mental processing speed (not psychomotor reaction time) so that trainees can process more complex information over briefer periods of time. The training involves practice with feedback. The trainer teaches some task-specific strategies, offer suggestions, encouragement, and personalized modification of difficulty for enhancing performance. Speed and task difficulty level are tailored to trainee ability, trainees practice blocks of 16 trials with a goal of achieving performance of 10 to 12 correct trials for each training block.

Intervention type: BEHAVIORAL
Group type: OTHER
Intervention: Instrumental Activities of Daily Living Shaping
Description: In addition to training on the SOPT software, participants will train on tasks that simulate everyday activities that have important cognitive components (e.g., selecting medicine bottles from a cabinet, measuring ingredients to bake a cake, finding information online). The training will follow shaping principles. Activity periods will be divided into trials of specific length, and the performance of the participant will be measured and graphed to provide the participant with feedback on their performance. Verbal praise will be used to reward a participant for improvements in performance. The difficulty of the task will be increased in small increments as a participant gains mastery. The purpose of this component is to serve as a bridge between the SOPT training, which exercises a basic aspect of cognitiven function, and cognitive function in everyday life, which is embedded in the context of multi-part, and multidimensional tasks.