The present study investigated the efficacy of RehaCom, a computerized cognitive training program, in improving memory and attention functions in the healthy, adult brain in comparison to playing a simple game (Solitaire).Method: 57 healthy participants completed either 9 sessions of attention and memory training within RehaCom or a simple game (Solitaire), for 30 minutes, 3 times a week for 3 weeks. Five pre-and post-training neuropsychological assessments were used to measure attention and memory, and level of anxiety and depression.Results: Results showed no significant differences between the experimental group and the active control group. Both groups showed a non-significant improvement in attention and memory over time as shown on scores in post-training assessments. This result indicated that, although both groups improved in terms of memory and attention function, RehaCom did not play a role in this improvement. However, participants in the experimental group showed a steady improvement over training sessions. Conclusion:The study presents the novelty of testing RehaCom in a healthy population and the finding that it does not greatly improve memory and attention functions in a selection of healthy individuals. Further research is needed in order to assert its efficacy in improving cognitive functions across both healthy and patient populations.