Signal viewer
Review waveforms, navigate time, select ranges, and attach annotations.
No channels displayed
Review tools
Recording quality timeline
Annotations
No annotations yet. Select a point or range, then choose Add annotation.
Analysis history
- Workflow steps will appear here as you review the recording
HFO review
The detector proposes candidates; you decide. Drag across a trace to mark an event it missed.
Detector settings
Methods text for this run
Covers the items HFO studies are asked to report (Höller et al. 2015): detector and threshold, band and filter, channels, time analysed, state, number of reviewers, and ripples and fast ripples separately. Edit it before publishing; NeuroScope does not know your electrode type or clinical context.
Showing events on only.
| Channel | Candidates | Accepted / rejected / to review | Hand-marked | Reviewed | Confirmed rate (95% interval) | Candidate rate | Spikes (Janca) |
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Channel rates appear after detection or once you mark an event.
Compare two sets of markings
| Channel | Reference | Compared | Matched | F1 |
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| Time (s) | Channel | Duration | Peak frequency | Amplitude | Cycles | Class | Source | Decision |
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Events appear here after detection, along with any you mark by hand.
Research use only; not validated for clinical decisions. In the only randomised trial, HFO-guided surgery was not non-inferior to spike-guided surgery (Zweiphenning et al. 2022).
Power spectrum
Estimate power spectral density for up to the first eight selected channels with Welch averaging or a direct FFT.
Band power
Compare delta–gamma power across channels for the visible window or complete recording.
Choose a scope, then compute
The visible window is faster and matches the signal currently under review. Use the complete recording for a whole-recording summary.
Mean band-power profile
Mean across the channels included in the latest run.
Delta
0.5–4 Hz—Theta
4–8 Hz—Alpha
8–13 Hz—Beta
13–30 Hz—Gamma
30–100 Hz—- Largest band
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- Channels
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- Interval
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- Signal state
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Channel comparison
Band power for each channel in the run, and the mean share of each band.
Digital filtering
Preview and apply a filter while keeping the raw recording available for comparison.
Spectrogram
Inspect how spectral power changes over time in one channel.
Statistics
Compute descriptive measures for each channel in the active signal state, then screen the visible window for review flags.
Visible-window quality screen
Check for possible flat signal, repeated extremes, and unusually large peak-to-peak range. Flags require manual review and are not clinical conclusions.
| Channel | Peak-to-peak | Flat transitions | Repeated extremes | Manual review |
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| Channel | Mean (µV) | Standard deviation | Variance | RMS | Min | Max | Peak-to-peak | Skewness | Kurtosis | Zero crossings |
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Scalp topography
Map a power or amplitude metric across recognized 10–20 channel labels.
Export
Set the data scope once; every signal-data download below uses it.
Signal-data scope
Signal data Uses the scope above
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Signal CSVOne column per channel, one row per sample.CSV
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Filtered-signal CSVThe same layout, taken from the filtered signal. Available after a filter is applied.CSV
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Data JSONScoped samples with recording metadata and the analyses computed so far.JSON
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MATLAB-compatible JSONScoped data and analyses in a structure suited to MATLAB or Python scripts.JSON
Figures
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Signal viewThe signal plot exactly as it is rendered in the viewer.PNG
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Signal view, vectorA scalable copy of the signal plot for papers and slides.SVG
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Active plotThe visualization on the tab you used last, at a higher resolution.
Analysis results
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SpectrumFrequency and power density values from the latest spectrum run.CSV
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Band powerPer-channel values from the latest band-power run.CSV
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Quality screenPer-channel metrics from the latest visible-window quality screen.CSV
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HFO eventsDetector candidates and hand-marked events with review decisions and detector settings.CSV
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Analysis reportRecording metadata and the analysis results computed in this session.PDF
Review files
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AnnotationsTime-linked annotations for review handoff or downstream event analysis.CSV
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Annotations, machine-readableAnnotations with their workspace snapshots.JSON
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BIDS eventsAnnotations and accepted HFO events as a BIDS events sidecar.TSV
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BIDS channelsChannel names with good or bad status.TSV
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Review sessionView settings, channel status, annotations, and HFO review decisions, without signal samples. Restore it later on the same recording.