DEMO-001
Eyes closed, seated rest
- Synthetic participant label
- SYNTHETIC-P01
- Illustrative duration
- 2 min per comparison period
- Scripted quality metadata
- 96.7% usable, 4 seconds flagged
User guide
Read the signal. Understand the example.
A practical guide to the dashboard controls, the numbers they show, and the limits of this demonstration.
Open the demo Synthetic data only
Start here
Explore one comparison at a time.
The public demo runs with bundled example data. It has no account, EEG upload, real-time device connection, or implemented AI analysis.
- 01
Choose a sample recording
Use Sample recording to switch between the eyes-closed and eyes-open examples. Session selection updates the powers, waveform, recording context, and scripted quality notes. Neither example includes a real participant or an intervention.
- 02
Choose the channel
All channels shows the mean fixture band powers across 8 channels. You can instead inspect Fp1, Fp2, C3, C4, P3, P4, O1, O2. Individual values use authored channel factors. They are not electrode measurements collected from a person.
- 03
Change the recording view
Baseline and Post-session switch the waveform period. Compare stacks the two periods in separate rows using the same display scale. These controls change the waveform display; the band-power comparison continues to show both baseline and post-session values.
- 04
Inspect a frequency band
Select Delta, Theta, Alpha, Beta, or Gamma below the comparison chart. The selected band changes the highlighted bars, summary metric, and explanatory text. It does not filter or otherwise change the waveform. View exact measurements opens the numeric table for every band. Bar lengths rescale to the current maximum across all displayed powers, so use the numeric values when comparing different sessions or channels.
- 05
Preview or download the report
Preview report opens the plain-text report on the page. Download report creates a local .txt file with the selected session, channel, band, all band powers, quality notes, method version, and limitations. The report always includes both periods and every band, regardless of the waveform view. Every report is labeled synthetic and unreviewed. Downloading does not submit it for investigator approval.
The example recordings
Two sessions, both authored.
DEMO-002
Eyes open, seated rest
- Synthetic participant label
- SYNTHETIC-P02
- Illustrative duration
- 2 min per comparison period
- Scripted quality metadata
- 93.3% usable, 8 seconds flagged
Usable percentages and flags are fixed fixture metadata. They are not classifier confidence scores, measured artifact-detection results, or an investigator's review.
A worked example
What does a +20% change mean?
Choose DEMO-001, All channels, and Alpha. The authored baseline is 20 µV² and the post-session value is 24 µV². The displayed change describes the difference relative to baseline:
Baseline
20 µV²
Post-session
24 µV²
Relative change
+20%
Change (%) = ((post − baseline) / baseline) × 100
((24 − 20) / 20) × 100 = +20%
This is arithmetic on authored values. A positive change is not a health score, an improvement rating, or evidence that a therapy works.
Read the display
A short preview, with a longer context.
2 seconds of waveform
The chart displays 500 generated samples at 250 samples per second. Its amplitude is in µV. The 2 min duration describes each illustrative comparison period; the chart is not a playback of an entire two-minute recording.
All channels has two display meanings
Band powers are the mean fixture powers across all 8 channels. In Baseline or Post-session view, the waveform preview shows four example channels: Fp1, C3, P3, and O1. In Compare view, it stacks representative baseline and post-session signals in separate rows using the same display scale. These signals are built from the mean powers, rather than averaging measured traces.
Quality notes describe the fixture
The quality panel lists scripted movement or eye-movement intervals. Those events have not been added to the two-second waveform. A clean-looking preview does not validate the full recording or prove successful artifact removal.
Frequency reference
The demo's band definitions.
These ranges are the definitions used by this demonstration. Selecting a band changes the comparison focus.
- Delta
- 1–4 Hz
- Theta
- 4–8 Hz
- Alpha
- 8–13 Hz
- Beta
- 13–30 Hz
- Gamma
- 30–45 Hz
Small glossary
Know the terms.
- Baseline
- The first authored comparison period. In this demo it represents resting state before the second period.
- Post-session
- The second authored resting-state period. No intervention was applied to generate these examples.
- Channel
- A named synthetic recording position. The demo uses Fp1, Fp2, C3, C4, P3, P4, O1, O2. These labels do not verify an equipment layout.
- µV
- Microvolts, the waveform amplitude unit. The preview does not have labeled, calibrated vertical-axis ticks.
- µV²
- Squared microvolts, the absolute band-power unit used by the comparison chart and report. It is a different quantity from waveform amplitude.
- Hz
- Cycles per second. Band ranges describe frequencies; the illustrative 250 Hz sample rate describes samples per second.
- Synthetic fixture
- An authored set of values used to demonstrate the interface. The waveform is a deterministic sum of sinusoidal components generated from these powers.
Common questions
Before drawing a conclusion.
Does the demo analyze my EEG or use AI?
No. There is no upload path, recording-analysis service, artifact classifier, or model call in this showcase. Waveforms and comparisons are generated from fixed synthetic fixtures.
Does a change show that a session was effective?
No. No treatment or real recording is represented. In a real study, a band-power change alone would not establish clinical improvement or causation. Read the analysis approach for the planned measurement and review boundaries.
Is a downloaded report approved or submitted?
No. Previewing or downloading creates a synthetic, unreviewed plain-text report. It is saved through your browser, with no investigator approval, email, or server submission. See data and privacy for details about local files and browser copies.
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