Our frequency protocols are informed by peer-reviewed neuroscience. We focus on precision, consistency, and real-world usefulness. Where evidence is emerging, we say so. Where outcomes are subjective, we respect that.
Gamma oscillations at 40Hz are a natural feature of healthy brain function. Research from MIT and others has explored what happens when that frequency is reinforced through external sensory stimulation.
40Hz flickering light entrains gamma oscillations in the visual cortex of mice, significantly reducing amyloid-β levels and activating microglial immune cells to clear neural waste. This was the foundational study that launched the GENUS research program at MIT.
Established that externally-delivered 40Hz stimulation could modulate brain oscillation patterns and downstream neural processes. Forms the conceptual basis of our gamma-frequency audio protocols.
Combined 40Hz auditory and visual stimulation (the GENUS protocol) produced more widespread effects than light alone, reducing amyloid and tau pathology across the auditory cortex, hippocampus, and prefrontal cortex.
Directly establishes that 40Hz auditory stimulation alone has measurable neurological effects, validating audio-only delivery without requiring light components.
40Hz auditory stimulation enhanced neural synchrony between frontal and parietal regions in human patients with dementia. Improved connectivity correlated directly with better performance on memory tasks.
Direct human evidence that audio-only 40Hz stimulation improves brain network connectivity. Supports the design rationale for our gamma-frequency audio protocols in both focus and cognitive resilience contexts.
Pink noise has a specific spectral profile that mirrors the brain's own electrical patterns during deep sleep. But delivery method matters a lot.
Pulsed pink noise, timed to the brain's slow oscillation phase during deep sleep, increased slow-wave activity and improved overnight word recall by approximately threefold in older adults. The key was phase-locked delivery: the noise pulses were synchronized to the rising phase of slow oscillations.
Demonstrates that structured, pulsed pink noise is far more effective than continuous noise for sleep enhancement. This informs AXON's approach to sleep audio design. We pulse our noise patterns rather than delivering a flat, continuous signal.
Continuous, unstructured pink noise masking reduced REM sleep duration by an average of 19 minutes per night. While effective at blocking environmental noise, the always-on delivery actually disrupted sleep architecture, specifically the lighter, dream-rich stages that are critical for emotional processing and memory consolidation.
This study tested constant pink noise in a lab setting and found REM disruption. The mechanism is relevant to how we think about sleep audio design. AXON uses pulsed, phase-timed noise rather than continuous playback — a design choice informed by this line of research, though not directly validated by this specific study.
Two complementary mechanisms: binaural beats create perceived frequencies through inter-aural differences, while stochastic resonance uses noise itself to boost signal processing.
A meta-analysis of 22 studies found that binaural beats produced a medium overall effect size on cognition, particularly in memory and attention tasks. Effects on anxiety reduction were also observed, though more variable. The analysis confirmed binaural beats as a legitimate, if modest, cognitive intervention. Not placebo. Not a miracle either.
AXON uses binaural beats as one component in a layered approach, not as a standalone solution. This meta-analysis supports their inclusion while reinforcing our philosophy: combine multiple evidence-based mechanisms for stronger composite effects.
Children with ADHD performed significantly better on cognitive tasks when exposed to background noise, while neurotypical children's performance declined. The mechanism — stochastic resonance. A suboptimal dopaminergic system benefits from external noise that raises internal neural noise to an optimal level for signal detection and processing.
Explains why noise-based audio works differently for different brains. AXON's focus programs leverage stochastic resonance principles with calibrated noise levels that support cognitive function, particularly for users who struggle with silence or minimal stimulation.