This study was carried out using an early version of our battle software:

"Participants who received training using Meditation Deathmatch showed significant post-training decreases in state anxiety and consistent and significant increases in game score across trials."

Feasibility of a Meditation Video Game to Reduce Anxiety in College Students
Meditation training increases brain efficiency in an attention task
Performance in attentional tasks following meditative focusing and focusing without meditation
The Effects of Mindfulness Meditation Training on Multitasking in a High-Stress Information Environment
Short-term meditation training improves attention and self-regulation
Mindfulness meditation improves cognition-evidence of brief mental training
Mental Training Affects Distribution of Limited Brain Resources
Meditate to Create The Impact of Focused-Attention and Open-Monitoring Training on Convergent and Divergent Thinking
Breathing above the brainstem Volitional control and attentional modulation in humans
Coupling of respiration and attention via the locus coeruleus effects of meditation
Attention regulation and monitoring in meditation
Reconstructing and deconstructing the self-cognitive mechanisms in meditation practice
Progressive Increase In Critical Flicker Fusion Frequency Following Yoga Training
Meditation training increases brain efficiency in an attention task
Experienced Mindfulness Meditators Exhibit Higher Parietal-Occipital EEG Gamma Activity during NREM Sleep
Examining the protective effects of mindfulness training on working memory capacity and affective experience
Stress modulates the engagement of multiple memory systems in classification learning
The effect of mindfulness meditation on time perception