title: I've heard it all before: perceptual invariance represented by early cortical auditory-evoked responses.
abstract: Sensitivity to acoustic invariance is critical for establishing stable representations in a shifting world of sound. By recording early auditory cortical responses to complex sounds in human listeners and categorising these responses according to the maintenance or change of stimulus attributes across consecutive presentations, we show that repetition within a constantly varying acoustic context produces enhanced neural responding in auditory cortices.
authors.affiliation: The Rotman Research Institute, Baycrest Centre for Geriatric Care, 3560 Bathurst Street, Toronto, Ontario, Canada M6A 2E1. bdyson@rotman-baycrest.on.ca
authors.forename: Benjamin J
authors.initials: BJ
authors.lastname: Dyson
authors.forename: Claude
authors.initials: C
authors.lastname: Alain
authors.forename: Yu
authors.initials: Y
authors.lastname: He
mesh_terms: D000161:Acoustic Stimulation; D001303:Auditory Cortex / Q000502:physiology*; D001307:Auditory Perception / Q000502:physiology*; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D006801:Humans; D011930:Reaction Time / Q000502:physiology