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Brainwave Entrainment Frequencies Flashcards

7 cards from real Meditation Music practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Which of the following is TRUE about using speakers (rather than headphones) for brainwave entrainment?

    Answer: Binaural beats require headphones, but isochronic tones work through speakers

    Binaural beats depend on each ear receiving a separate frequency, which only headphones can reliably deliver; isochronic tones are acoustically real and work through speakers.

  2. Low-frequency delta entrainment (1–2 Hz) is sometimes used by practitioners to promote:

    Answer: Physical healing and immune function support during deep sleep

    Delta sleep is when growth hormone is released and cellular repair occurs, so delta entrainment is marketed to support restorative processes.

  3. What is 'entrainment stacking' in advanced brainwave audio design?

    Answer: Gradually shifting the target frequency across a session to guide the listener through multiple states

    Entrainment stacking (or frequency ramping) transitions listeners through different brainwave targets within one session, such as from beta to alpha to theta.

  4. Research on brainwave entrainment and stress reduction most commonly measures outcomes using which physiological marker?

    Answer: Cortisol levels and heart rate variability (HRV)

    Cortisol (the primary stress hormone) and HRV (a measure of autonomic nervous system balance) are the most used biomarkers in stress-entrainment studies.

  5. A 10 Hz alpha binaural beat track uses 200 Hz in one ear. What frequency must be in the other ear?

    Answer: 210 Hz

    To produce a 10 Hz beat, the second ear must receive a tone 10 Hz higher than 200 Hz, which is 210 Hz.

  6. Which historical figure is credited with early experimental work on the relationship between sound frequencies and brain electrical activity in the 1970s?

    Answer: Gerald Oster

    Gerald Oster's 1973 Scientific American article 'Auditory Beats in the Brain' brought binaural beat research into mainstream scientific awareness.

  7. What is the primary reason meditation music producers layer low-frequency drones or bowls with entrainment tones?

    Answer: To create an immersive ambient texture that sustains attention during longer sessions

    Ambient drones and singing bowls provide a rich sonic environment that keeps the listener engaged and comfortable throughout extended entrainment sessions.