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EEG / Sleep Stages / Arousals

EEG & Sleep Stage Teaching Images

Compare the supplied EEG overview with separate Wake, N1, N2, N3 and REM teaching examples.

Educational reference, not a diagnostic tool. A scored event, an elevated index and a clinical diagnosis are different things. Follow your facility’s scoring manual, notification policies and clinical protocols.

  • Original synthetic teaching excerpts, not patient data or complete scored epochs. Clinical review pending.
  • Short excerpts illustrate stage features, not a fixed nightly sequence or an automatic stage assignment.
  • Use EEG, EOG, chin EMG and neighboring-epoch context with the current scoring manual; REM cannot be identified from EEG alone.

Waveforms

Sleep stages • EEG comparison

Not clinically reviewed

EEG / Sleep Stages / Arousals

Illustrative teaching waveformSame 10 seconds. Same voltage scale. Different stage features.Source: User-supplied original synthetic teaching signals. Not patient data. Independent clinical review pending; source references in the accompanying guide were not supplied or verified.

W • Eyes-closed wake

Not clinically reviewed

EEG / Sleep Stages / Arousals

Illustrative teaching waveformPosterior dominant rhythm (alpha).Source: User-supplied original synthetic teaching signals. Not patient data. Independent clinical review pending; source references in the accompanying guide were not supplied or verified.

N1 • Light sleep

Not clinically reviewed

EEG / Sleep Stages / Arousals

Illustrative teaching waveformLow-amplitude, mixed-frequency EEG.Source: User-supplied original synthetic teaching signals. Not patient data. Independent clinical review pending; source references in the accompanying guide were not supplied or verified.

N2 • Spindles + K complex

Not clinically reviewed

EEG / Sleep Stages / Arousals

Illustrative teaching waveformTwo distinct features, highlighted separately.Source: User-supplied original synthetic teaching signals. Not patient data. Independent clinical review pending; source references in the accompanying guide were not supplied or verified.

N3 • Slow-wave sleep

Not clinically reviewed

EEG / Sleep Stages / Arousals

Illustrative teaching waveformLarge, slow frontal EEG waves.Source: User-supplied original synthetic teaching signals. Not patient data. Independent clinical review pending; source references in the accompanying guide were not supplied or verified.

R • REM sleep

Not clinically reviewed

EEG / Sleep Stages / Arousals

Illustrative teaching waveformMixed-frequency EEG + rapid eyes + low chin tone.Source: User-supplied original synthetic teaching signals. Not patient data. Independent clinical review pending; source references in the accompanying guide were not supplied or verified.

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