EEG Session 30: Beta Audiovisual Entrainment

This page contains the data and analysis of a brain wave recording session I did using a Muse Gen 1 EEG Headband.

Session Characteristics

  • 19/11/2023, 16:30
  • During this session, I was testing aBetaAudiovisual Brainwave Entrainment track I created.
  • I was listening to the track with my eyes open.

All Sensors

  • As usual,Alphadominates, but not as much as when my eyes are closed. Therefore,Alphaappears less separated from the frequencies below.
  • Similar to Session 24, there is a clear gradual increase ofGammaenergy over time.
  • Betadominance is down in fourth place (instead of second place). Based on my experience with otherBetatracks, I have higher expectations in this regard. So, should I classify this track as a failure? Let’s inspect a few more things first.

Right-Back Sensor (TP10)

  • Looking at the Right-Back quadrant, some signs of entrainment can be found ✅
  • First, theGammafrequency range oscillates in a predictable sinusoidal, orderly pattern, in a way that hasn’t been observed outside any brainwave entrainment session.
  • Secondly, BetaandGammaare phase-locked, with their peaks and valleys aligned.

Front Sensors (AF7, AF8, Smoothed Out)

  • Looking at the Front-Left (AF7) and Front-Right (AF8) sensors, more interesting data can be found.
  • In both places,BetaandGamma show an upward trend while other frequency ranges decrease, are stable, or increase only slightly.
  • In the Front-Left (AF7) quadrant,Betaincreased 26% in dominance andGammaincreased 24% in dominance.
  • In the Front-Right (AF8) quadrant,Betaincreased 22% in dominance andGammaincreased 128% in dominance.
  • This, plus the previous section, scores points in favor and restores this track as a properBetaandGammaentrainment tool.

Absolute Average Values (All Sensors)

  • Alphaaverage: 52 dB
  • Deltaaverage: 44 dB
  • Thetaaverage: 41 dB
  • Betaaverage: 40 dB
  • Gammaaverage: 18 dB

Percentual Average Values (All Sensors)

  • Alphaaverage: 33%
  • Deltaaverage: 23%
  • Thetaaverage: 19%
  • Betaaverage: 18%
  • Gammaaverage: 7%

Brainwave Lateralization

Center of Gravity

For reference: the circle with the black circumference marks the central area of the brain. Activity inside it is more central and symmetrical; outside is more asymmetrical.

  • Delta’s center of gravity was located in the Center-Back quadrant.
  • Theta’scenter of gravity was located in the Center-Back quadrant.
  • Alpha’scenter of gravity was located on the Center-Back quadrant.
  • Beta’scenter of gravity starts outside of the Center-Back quadrant and moves towards the central circle over time.
  • Gamma’scenter of gravity starts outside of the Right-Back quadrant and moves towards the central circle over time.
  • Although imperfect, this moving toward the center of the circle reminds me of the very special Session 16.

Get This Track

If you are interested in trying this track, you can get it as part of the NEX: Brainwave Entrainment Bundle

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