SOPHROS
RAT Research Portal
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SOPHROS
Internal access only. Enter the team password to continue.
A single reference portal for the Sophros data & research team — every training library, every instrumentation, the clinical evidence, the brain systems engaged, and the data-quality trail behind it all.
Each library is a purpose-built soundscape targeting a domain of regulation. Click any card to open its instrumentation.
Use the search box in the top bar to jump to any instrument, sub-domain, brain region, or citation from anywhere in the portal.
Every documented instrumentation across the eight libraries, in Coral's six-field template. Filter, search, and expand any row for the full record and its data-quality status.
How many instruments in each library target each sub-domain. A sub-domain's home library is outlined; filled cells outside it reveal cross-library targeting and overlap. Click a cell to open those instruments.
The library-to-brain map. Below the view, each region links to the libraries and instruments that engage it.
18 regions engaged across the protocol. Click a library pill to open its instrumentation.
RAT is built on a single premise: the auditory system is the brain's fastest and most precise timing instrument. Vision is comparatively sluggish and tactile input is moderate; only the auditory pathway delivers temporal information at the resolution the nervous system needs for regulation, attention scaffolding, and motor entrainment. Every library in the protocol is an application of that fact.
Open any library's full instrumentation and protocol envelope:
A periodic beat elicits a sustained, frequency-locked cortical response — the nervous system doesn't merely hear a pulse, it resonates at it. Cardiovascular and respiratory variables track musical tempo directly.
A repeating, transient-free field drives auditory prediction error toward zero. The reduction of acoustic uncertainty is what the threat-detection system reads as safety — regulation before thought.
Low-frequency sound directly stimulates the otolith organs, tuned to sub-100 Hz vibration below auditory threshold. Sub-bass is felt by the body — the most reliable somatic tether for a dissociated client.
Warm, human-sourced timbre maps onto limbic circuitry, and low-frequency content entrains brainstem and autonomic activity toward parasympathetic dominance.
Sub-250 Hz content appears in every library. Lower frequencies prime and regulate before any other element does training work — the shared floor the protocol is built on.
Library 1 is acute and state-based — discrete episodes needing in-the-moment de-escalation (fast rescue, 60–80 BPM). Library 7 is tonic and trait-based — the persistent resting set-point retrained slowly (50–65 BPM, measured by cortisol/GAD-7/PSQI). A symptom belongs to whichever library's soundscape actually treats it.
Every citation is real and verifiable. Where a predicted effect extends an established mechanism into a new application, that is framed as a mechanistic rationale, not an outcome claim. See References for the full list, tagged by evidence type.
Select the sub-domains present in the client's intake. The tool maps them to the libraries whose soundscapes treat them and assembles a recommended layering recipe from the documented instrumentation.
This page codifies the rules the reference set follows, so the data is auditable and any team member can extend it consistently.
| Field | Definition |
|---|---|
| Instrumentation | The categorical musical element / folder that houses the individual audio files. |
| Label / s | The audio files inside the folder, with the filename schema. |
| Definition | What the musical element is, in plain music-theory terms. |
| Target Symptom / Predicted Effect | Sub-domains targeted + predicted effect + the mechanistic reason (WHY) the element has that effect. |
| Auditory Variables | Frequency, BPM, spatial placement, key, beat structure. |
| Variances | (a) how it varies within the library; (b) how/why it varies with symptom severity. |
Libraries 1–6 use [Library].[Code].[Variation].[BPM].wav, where the second number is the instrument index (e.g. 3.2.XYLO.100.wav). Libraries 7–8 as recorded use a dotted key/BPM scheme (7.KICK.60.wav, 8.1.SPACEHARP.EM.70.wav). Known inconsistency: in L8, 8.1/8.2/8.3 is used as a variation index that restarts per folder — tracked as QC-01 on the Status page.
Each library owns a fixed set of neutral, non-diagnostic sub-domains (shown on the Coverage matrix and each library's envelope). Diagnostic labels (ADHD, PTSD, etc.) are deliberately avoided in the taxonomy in favor of symptom-level descriptors. An instrument may target a sub-domain owned by another library — those cross-links are what the coverage matrix surfaces.
A symptom is filed to whichever library's soundscape actually treats it. Acute / phasic / state-based presentations (discrete episodes, in-the-moment de-escalation, post-event recovery) → Library 1. Tonic / trait-based presentations (persistent resting set-point, chronic-stress physiology, retrained over days) → Library 7. This maps onto the clinical phasic-vs-tonic arousal distinction.
Sub-250 Hz content is intentional across all libraries, including those whose stated range sits higher — it is not an inconsistency. Lower always helps priming and regulation, so library Hz "floors" are not enforced.
Every citation is real and DOI-verifiable; no fabricated sources. Claims are written confidently but a predicted effect that extends a mechanism is framed as rationale, not an outcome. References are tagged Mechanism / Clinical / Framework on the References page.
The underlying deliverables — the source of truth the portal is generated from. Each is also rendered live below, no download needed.
All peer-reviewed sources, tagged by evidence type and linked to their DOI where available. Each lists the instruments that cite it. Export the full set for a reference manager.
Choose the population, then upload a completed RAT Soundscape Survey (.xlsx). The portal scores the 80 items, ranks the eight libraries, charts the profile, and produces an engineer-facing prescription with the survey-based reasoning behind every parameter. Each submission is saved to the History log.
Who else is working in our space worldwide — academic centres, companies, funders, professional bodies — what they have that we don't, and where the open ground is. Every entry links to a verifiable source.
Short courses, quizzes and games that teach how Rhythmic Auditory Training works — from the premise, through the eight libraries and the brain pathways, to reading a prescription and building a session. Progress is saved in this browser.