♩Rhythm PlanetEvidence and limitations中文 · ← Back to training
Evidence transparency · Verified 2026-08-22

What supports this design—
and what we do not overclaim

Rhythm Planet is a rhythm support training prototype for children. It is not offered as a medical device, diagnostic tool, substitute for treatment, or standardized cognitive test. Every claim below links directly to its source and states the limits of applying that research here.

01 · What is RAS?

Steady rhythmic sound can help organize movement in time

Rhythmic Auditory Stimulation (RAS) provides timing cues through steady sound. The direct evidence listed here covers different settings, including gait in cerebral palsy and cognitive impairment mainly in adults and older people. This product borrows only the interaction principle of a steady, predictable sound cue; it does not extend those clinical findings to attention training in children. [S4][S5]

02 · Auditory–motor synchronization

Players listen, predict, and align an action—not merely react to a color

The “listen–predict–act” instruction comes from theories of beat-timing prediction. S6 proposes that the motor system may participate in predicting auditory beats, but it is a theory and hypothesis, not evidence of this site’s effectiveness. Children’s music-intervention studies report only preliminary signals in selected attention measures. Their samples, populations, and interventions differ, so they cannot guarantee improvements in attention, gait, or cognition. [S1][S2][S3][S6]

03 · Training dose

Rounds are short; 30 minutes only triggers a break reminder

The 30–60 minute sessions, 2–3 times per week, over 12 weeks or more summarized by S4 describe particular trials mainly involving adults or older people. They are not a prescription for children. On this site, 30 minutes is only a break-reminder threshold, not an effective dose or target. The 30/45/60-second rounds are also product-design choices; a teacher or caregiver decides whether to continue based on the child’s condition that day. [S2][S4]

04 · Why personalize?

Baselines, hit windows, and tempo support participation—not comparison

Some included protocols combined a metronome rhythm with an individual’s own rhythm, and intervention parameters varied substantially across studies. [S4][S5] The product therefore establishes an on-device baseline from a 12-tap calibration, then offers an adjustable tempo and forgiving hit window. These are product heuristics, not medical thresholds and not values directly derived from research.

Product-design choices

Keep attention on the rhythm

Forgiving judgment

The default window is ±800 ms and a teacher can widen it to ±1500 ms or more. Any tap inside the window counts.

No penalty for a miss

Out-of-window taps are still recorded, but the child view shows no error or point deduction, and lit regions never go dark.

Personal baseline

Each player keeps separate calibration, BPM, hit window, and history. Trends compare only that player’s own change.

No ranking

A two-player relay records individual results separately but presents one shared team outcome.

Claim-to-source traceability

Every published claim has a source

ClaimSourceLimitation
The RAS contexts listed here include gait in cerebral palsy and cognitive impairment in adultsS4, S5Those populations are not the same as this site’s child users
The motor system may participate in predicting auditory beat timingS6A theoretical hypothesis, not product-outcome evidence
Children’s music interventions show preliminary signals in some attention measuresS1, S2, S3Samples and designs differ; no certain benefit is claimed
Trials in adults and others include 30–60-minute, multi-week protocolsS4Not used to recommend a dose or schedule for children
The product uses personal baselines and a non-competitive designProduct decision v1.0A usability choice, not a claim of clinical superiority
Each source opened and checked

References

S1

Attention Span of Children With Mild Intellectual Disability: Does Music Therapy and Pictorial Illustration Play Any Significant Role?

Jacob et al., 2021. A quasi-experimental study of 50 children with mild intellectual disability, using 24 sessions of 45 minutes each. This was not a study of an RAS game.

Open source ↗
S2

The Effect of Music Intervention on Attention in Children: Experimental Evidence

Kasuya-Ueba et al., 2020. A single 30-minute within-subject repeated-measures study of healthy children aged 6–9, with 29 included in analysis. After controlling for intelligence, only attention control/switching showed a specific improvement; this cannot establish long-term benefit.

Open source ↗
S3

Assessing the Impact of Music Therapy on Sensory Gating and Attention in Children With Autism: A Pilot and Feasibility Study

LaGasse et al., 2019. A pilot and feasibility study of 7 children with ASD and 7 matched controls. It should be treated only as a preliminary signal.

Open source ↗
S4

Effects of movement training based on rhythmic auditory stimulation in cognitive impairment: a meta-analysis of randomized controlled clinical trial

PMC11057238. The 12 randomized trials mainly involved adults or older people with cognitive impairment, stroke, Parkinson's disease, or related conditions. They do not establish a training dose for children.

Open source ↗
S5

Systematic review of rhythmic auditory stimulation for gait improvement in people with cerebral palsy

Chinese Journal of Rehabilitation Theory and Practice, 2023, 29(12):1386–1394. It supports a cerebral-palsy gait context, not attention or cognitive outcomes.

Open source ↗
S6

The evolutionary neuroscience of musical beat perception: the Action Simulation for Auditory Prediction (ASAP) hypothesis

Patel and Iversen, 2014. A theory and testable hypothesis about the motor system's role in predicting beat timing, not evidence that this site produces clinical benefits.

Open source ↗
Material not used

The document titled “Rhythm and Cognitive Training App — Simple Research Form” was flagged in the source list as possibly AI-generated. Because its original research trail could not be verified, no claim from it is cited here.

Important limits

This prototype is not offered as a medical device. It is not for diagnosis or treatment, does not replace professional rehabilitation, and does not guarantee improvements in attention, gait, or cognitive function. Thirty minutes is only an interface reminder threshold, not medical-dose guidance. If a child experiences fatigue, discomfort, sound sensitivity, or emotional distress, pause immediately and let a teacher, caregiver, or professional decide what to do next.