Longitudinal age- and sex-related change in background aperiodic activity during early adolescence

By M. McSweeney, S. Morales, Emilio A. Valadez, G. Buzzell, N. Fox. 2021

Subfields: Cognitive Neuroscience, Developmental Neuroscience

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Citations in the corpus

Scale-Free Neurodynamics as Functional Fingerprint of Brain Regions (2026, unknown): “However, canonical power and isolated aperiodic components alone were less sensitive to condition differences [19,22,43].”
Relating ADHD to the aperiodic component of the EEG signal in both males and females across development (2026, unknown): “No longer merely viewed as noise, aperiodic activity has now been shown to vary with age (Cellier et al., 2021; Hill et al., 2022; McSweeney et al., 2021; Stanyard et al., 2024), task demands (Arnett et al., 2022; Ouyang et al., 2020), various neurodevelopmental differences, including ADHD (Pani et…”
Reevaluating the neural noise in dyslexia using biomarkers from electroencephalography and high-resolution magnetic resonance spectroscopy (2025, unknown): “…of dyslexia status, we found negative correlations between age and exponent and offset, consistent with previous research ( Cellier et al., 2021 ; McSweeney et al., 2021 ; Schawor-onkow and Voytek, 2021 ; Voytek et al., 2015 ) and providing further evidence for maturational changes in the…”
Longitudinal trajectories of aperiodic EEG activity in early to middle childhood (2024, background): “McSweeney et al. (2021) observed significant sex differences in aperiodic activity in adolescence.”
Exploring Background Aperiodic Electroencephalography (EEG) Activity in the Bucharest Early Intervention Project (2024, unknown): “One potential explanation is that the different trajectories during adolescence (McSweeney et al., 2021) have been diluted by developmental changes during childhood.”
The development of aperiodic and periodic resting-state power between early childhood and adulthood: New insights from optically pumped magnetometers (2024, background): “…in global spectral power reported here, and elsewhere (Cellier et al., 2021; Favaro et al., 2023; G ´ omez et al., 2017; A. T. Hill et al., 2022a; McSweeney et al., 2021, 2023; Miskovic et al., 2015; Schaworonkow and Voytek, 2021; Tr ¨ ondle et al., 2022), which have been shown to parallel the…”
Theta activity and cognitive functioning: Integrating evidence from resting-state and task-related developmental electroencephalography (EEG) research (2024, background): “This is because the aperiodic slope (1/f) gets smaller/flatter with age across development starting from infancy (McSweeney et al., 2021, 2023; Schaworonkow and Voytek, 2021).”
Aperiodic EEG and 7T MRSI evidence for maturation of E/I balance supporting the development of working memory through adolescence (2024, background): “Consistent with previous reports (Hill et al., 2022; McSweeney et al., 2021; Tr ¨ ondle et al., 2022; Cellier et al., 2021), we found age-related decreases in both the offset and exponent parameters of EEG-based aperiodic activity across both eyes open and eyes closed conditions.”
Cortico-striatal gamma oscillations are modulated by dopamine D3 receptors in dyskinetic rats (2024, background): “In contrast, the offset reflects the overall firing rates of neuronal populations and the 1/f-like power spectrum, which is distinct from ongoing oscillations (Cellier et al., 2021; McSweeney et al., 2021).”
Aperiodic and Hurst EEG exponents across early human brain development: A systematic review (2024, unknown): “Childhood studies showed marginal AE increases in later (Hill et al., 2022; Tr ¨ ondle et al., 2022; McSweeney et al., 2021) versus earlier (Robertson et al., 2019; Wil-kinson and Nelson, 2021) childhood (for both EOR/ECR), although this may reflect greater between-dataset variability rather than…”
Periodic and Aperiodic EEG Features as Potential Markers of Developmental Dyslexia (2023, result): “As seen in previous studies [39,40], here, we also observed a positive correlation between offset and exponent regardless of the group.”
Annual Research Review: Developmental pathways linking early behavioral inhibition to later anxiety (2022, background): “In terms of development, children display a flattening of the aperiodic slope with age and a shift from predominantly theta to predominantly alpha oscillations around 7–8 years of age (Cellier, Riddle, Petersen, & Hwang, 2021; McSweeney, Morales, Valadez, Buzzell, & Fox, 2021).”
Neural Markers of Methylphenidate Response in Children With Attention Deficit Hyperactivity Disorder (2022, background): “, becomes flatter) with age across the lifespan (Cellier et al., 2021; McSweeney et al., 2021; Pathania et al., 2022).”
Globally elevated excitation–inhibition ratio in children with autism spectrum disorder and below-average intelligence (2021, background): “The developmental flattening of the spectral slope has been previously observed in TD infants [25], children [20, 21], and adolescents [24] and may reflect protracted maturational changes that are common for both TD and ASD Table 2 Spearman correlations between the grand average”