Dynamic pattern formation leads to 1/f noise in neural populations.

By Marius Usher, Martin B. Stemmler, Z. Olami. 1995

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Resting-state periodic and aperiodic brain oscillations from birth to preschool years: Aperiodic maturity predicts developmental course (2026, unknown): “…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 to…”
The development of aperiodic and periodic resting-state power between early childhood and adulthood: New insights from optically pumped magnetometers (2024, result): “The link between E/I balance and the spectral slope has been supported by studies examining changes in the aperiodic slope under pharmacological interventions known to modify inhibitory and excitatory neural activity (Colombo et al., 2019; Gao et al., 2017; Fig.”
Model selection for spectral parameterization (2024, unknown): “This results, therefore in better overall fits and a reduction in model fit error, principally along the edges of the power spectrum (see Figure 3A).”
Decomposing the role of alpha oscillations during brain maturation (2020, background): “More specifically, the aperiodic slope has been linked to the synchronicity of activity in the underlying neural population (Miller et al., 2009; Usher et al., 1995) and its balance between excitatory and inhibitory activity (Gao et al.”