Does the 1/f frequency scaling of brain signals reflect self-organized critical states?

By C. Bédard, H. Kroeger, Alain Destexhe. 2006

Subfields: Biophysics, Cognitive Neuroscience, Signal Processing

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Citations in the corpus

The development of theta and alpha neural oscillations from ages 3 to 24 years (2021, background): “Electrophysiology recordings of human brain activity consistently report a prominent 1/f power distribution, often referred to as “background noise” (Bédard et al., 2006; Usher et al., 1995).”
Disentangling Shared and Private Neural Dynamics with SPIRE: A Latent Modeling Framework for Deep Brain Stimulation (2025, unknown): “…warps and bilinear mixing with 1 /f noise and AR(1) latents; D2 extends D1 with a slow time-varying inter-regional lag (sinusoidal) to model phase-dependent communication and latency variability (Bedard et al., 2006; He, 2014; Dupr´e la Tour et al., 2017; Fries, 2005; 2015; Lakatos et al., 2008).”
Resting-state periodic and aperiodic brain oscillations from birth to preschool years: Aperiodic maturity predicts developmental course (2026, unknown): “Accordingly, RS analyses need to distinguish the 1/f aperiodic activity (often referred to as non-sinusoidal ‘background noise ’ (Bedard et al., 2006; Usher et al., 1995)) but very likely meaningful (Donoghue, 2020; Donoghue et al., 2020; Ostlund, 2022) from periodic oscillatory activity in order…”
Model selection for spectral parameterization (2024, unknown): “Several empirical observations support this hypothesis (Bédard et al., 2006; Sosnoff & Newell, 2011).”
The development of oscillatory and aperiodic resting state activity is linked to a sensitive period in humans (2023, background): “The Lf-Slope of the aperiodic component was significantly steeper (more negative slope), and the Hf-Slope of the aperiodic component was significantly flatter (less negative slope) in CB and CC participants compared to the typically sighted controls.”
Separating Neural Oscillations from Aperiodic 1/f Activity: Challenges and Recommendations (2021, unknown): “…for different frequency ranges such as 0.01–0.1 Hz (He et al., 2010), 0.5–35 Hz (Miskovic et al., 2019), 1–10 Hz (Schaworonkow & Voytek, 2021), 1–20 Hz (Bédard et al., 2006), 1–30 Hz (Wen & Liu, 2016), 1–40 Hz (Colombo et al., 2019), 1–20 and 20–40 Hz (Colombo et al., 2019), 1–100 Hz (He et al.,…”
Hierarchical consciousness: the Nested Observer Windows model (2024, methodology): “In support of this model, a prominent 1/f power law, or pink noise, is evident in electrical recordings of the brain (Bedard et al. 2006, He 2014, Voytek et al. 2015b), heart beats (Ivanov et al. 1999), neuron spiking (Teich 1989), and protein surfaces (Goetze and Brickmann 1992).”