The experimental playground
Eleven little challenges. Pick one, find your rhythm, and pass the phone to a friend.
Small rounds. Big “one more”.
Original experiments for fun and curiosity. Not ADHD tests or treatments.
These sources explain the cognitive processes and the limits of training research. They did not evaluate the games on this page. This is the complete bibliography for these explanations, not an exhaustive review of ADHD research.
Systematic review / meta-analysis
Pia Elbe, Christian Bäcklund, Mariana Vega-Mendoza, Daniel Sörman, Hanna Malmberg Gavelin, Lars Nyberg, Jessica K. Ljungberg. Neuropsychology, 2023.
DOI: 10.1037/neu0000890
Who was studied: Adults with ADHD; 9 randomized trials.
Finding and limits: The pooled overall cognitive effect was small. ADHD symptoms and the separate executive-function, processing-speed and working-memory outcomes did not improve significantly. Different training programs were studied, not these games.
Source checked:
Randomized controlled trial
Karizma Mawjee, Steven Woltering, Rosemary Tannock. PLOS ONE, 2015.
DOI: 10.1371/journal.pone.0137173
Who was studied: 97 students with ADHD, ages 18 to 35.
Finding and limits: Some memory gains survived correction for multiple comparisons, but the study found no transfer to other abilities or ADHD symptoms. Standard-length Cogmed training did not show robust advantages over the shorter active comparison.
Source checked:
Systematic review / meta-analysis
R. Matt Alderson, Lisa J. Kasper, Kristen L. Hudec, Connor H. G. Patros. Neuropsychology, 2013.
DOI: 10.1037/a0032371
Who was studied: Adults with and without ADHD across 38 studies.
Finding and limits: Average verbal and visuospatial working-memory differences were moderate, with results varying by task. This describes group differences, not every adult with ADHD, and does not test whether games help.
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Observational laboratory study
Neta Gorohovsky, Hagit Magen. Memory, 2022.
DOI: 10.1080/09658211.2022.2078841
Who was studied: 64 university students with and without ADHD.
Finding and limits: The ADHD group recalled individual objects less well, but benefited similarly from seeing the original scene again. Remembering objects and their context may differ; this was not a training trial.
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Observational laboratory study
Gráinne McLoughlin, Bjoern Albrecht, Tobias Banaschewski, Aribert Rothenberger, Daniel Brandeis, Philip Asherson, Jonna Kuntsi. Behavioral and Brain Functions, 2010.
DOI: 10.1186/1744-9081-6-66
Who was studied: 21 adults with ADHD and 20 controls.
Finding and limits: Brain recordings during cued attention tasks showed differences in preparation, orienting and response inhibition. These processes were related, so inhibition alone did not explain the pattern. No game-training benefit was tested.
Source checked:
Observational laboratory study
Joseph A. King, Michael Colla, Marcel Brass, Isabella Heuser, D. Y. von Cramon. Behavioral and Brain Functions, 2007.
DOI: 10.1186/1744-9081-3-42
Who was studied: 22 adults with ADHD and 22 controls, ages 18 to 45.
Finding and limits: Interference and rule-switching differences depended partly on preparation time and response consistency. The tasks investigated cognitive processes; they did not establish benefits from practicing them.
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Observational laboratory study
Ann-Christine Ehlis, Saskia Deppermann, Andreas J. Fallgatter. Journal of Psychiatry & Neuroscience, 2018.
DOI: 10.1503/jpn.170118
Who was studied: 34 adults with ADHD and 34 controls enrolled; EEG analyses used smaller samples.
Finding and limits: A modified flanker task found differences in brain signals related to monitoring actions. Post-error behaviour did not differ significantly between groups. The study was observational, not a test of therapeutic gameplay.
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Observational laboratory study
Dana Ganor-Stern, Ofir Steinhorn. Acta Psychologica, 2018.
DOI: 10.1016/j.actpsy.2018.05.013
Who was studied: Adults with ADHD compared with controls on calculation and estimation tasks.
Finding and limits: Adults with ADHD were slower but not less accurate. Strategies based on a sense of magnitude were preserved; difficulties were more apparent in calculation requiring working memory. This was not a dot-comparison training study.
Source checked:
These are separate products from the research you shared. Follow their official access routes; the games here do not reproduce their clinical evidence.
Adult therapeutic games · official evidence and waitlist
Adult therapeutic game · FDA document (PDF)
Prescription game for ages 8–17 · official access and demo information
Adult skills program · published study
Adult skills app · published study
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