Aperiodic slope

1. Background noise decreases aperiodic slope in humans.

   “aperiodic slope flattened and offset was reduced with increasing noise”

   Humansspeech comprehension in noisebrainn = 48

   Aperiodic neural activity during speech comprehension in aging: Insights into cognitive effort

   Cognitive, affective & behavioral neuroscience·11 Nov 2025

More on Background noise

1. Aperiodic slope is associated with emotional memory consolidation in humans.

   “less age-related flattening of slopes associated with stronger consolidation of negative stimuli post-sleep but not post-wake”

   Human trialpost-sleepn = 42

   Effects of aperiodic neural activity on sleep-based emotional memory consolidation across the lifespan

   Neuropsychologia·4 Sep 2025