Task-related Aperiodic EEG (1/f) Activity in Autism
Matyjek, M.; Soto Faraco, S.; Alvarez Martin, C.; Torralba Cuello, M.
Show abstract
Autism has been hypothesised to involve atypicalities in the balance between neural excitation and inhibition (E/I). Aperiodic EEG activity, characterised by the 1/f exponent of the power spectrum, provides a proxy of cortical E/I dynamics, yet prior studies in autism report mixed findings. One potentially important modulator of EEG slope is task engagement. Here, we examined variations in aperiodic slopes in autistic (n = 35) and neurotypical (n = 39) adults during passive viewing and an active, goal-directed task. The data revealed that autistic participants exhibited steeper slopes (indicative of increased inhibition vs. excitation) during the active task relative to passive viewing, whereas neurotypical participants showed no significant task-related changes. These findings suggest that aperiodic activity reflects dynamic, task-dependent neural adaptation rather than baseline group differences. Task engagement may reveal compensatory inhibitory processes in autistic adults, underscoring the importance of considering task demands and individual variability when investigating E/I balance in autism.
Matching journals
The top 3 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- A 3D approach to understanding heterogeneity in early developing autisms 94%
- Reduced inter-subject functional connectivity during movies in autism: Replicability across cross-national fMRI datasets 94%
- Patterns of connectome variability in autism across five functional activation tasks. Findings from the LEAP project 93%
Similar papers in this journal
- Autism spectrum disorder common variants associated with regional lobe volume variations at birth: cross-sectional study in 273 European term neonates in developing Human Connectome Project 93%
- Reliably quantifying the severity of social symptoms in children with autism using ASDSpeech 93%
- Clinical autism subscales have common genetic liability that is heritable, pleiotropic, and generalizable to the general population 92%
Similar papers in this journal
- Functional connectivity in infants' visual cortex: Links to motion processing and autism 92%
- Automatic speaker diarization for natural conversation analysis in autism clinical trials 92%
- Say what I mean - Expectancy effects in the EEG during joint and spontaneous word-by-word sentence production 92%
Similar papers in this journal
- Atypical Mediofrontal Theta Oscillations Underlying Cognitive Control in Kindergarteners with Autism Spectrum Disorder 94%
- Preserved spontaneous mentalizing amid reduced intersubject variability in autism during a movie narrative 93%
- Autism is associated with inter-individual variations of gray and white matter morphology 92%
Similar papers in this journal
- Increased context adjustment is associated with auditory sensitivities but not with autistic traits 96%
- Intact Somatosensory Temporal Sensitivity in Adults on the Autism Spectrum: A High-Density Electrophysiological Mapping Study Using the Mismatch Negativity (MMN) Sensory Memory Paradigm. 94%
- Change in aperiodic activity over first year of life is associated with later autism diagnosis and 18-month language development in infants with family history of autism 94%
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.