Sophie Vanvooren|Michaël Hofmann|Hanne Poelmans|Pol Ghesquière|Johan Wouters
Theta, beta and gamma rate modulations in the developing auditory system
KU Leuven|KU Leuven|KU Leuven|KU Leuven|KU Leuven
brain temporal analysis many important auditory features relies synchronized firing neurons auditory input rhythm socalled neural oscillations play crucial role sensory cognitive processing deviances oscillatory activity shown associated neurodevelopmental disorders given importance neural auditory oscillations normal impaired sensory cognitive functioning growing interest developmental trajectory early childhood present study neural auditory processing investigated typically developing young children n 40 adults n 27 participants auditory evoked theta beta gamma responses recorded results study show maturational differences children adults neural auditory processing cortical well brainstem level neural background noise cortical level shown higher children compared adults addition higher theta response amplitudes measured children compared adults beta gamma rate modulations different processing asymmetry patterns observed age groups mean response phase also shown differ significantly children adults rates results suggest cortical auditory processing beta develops general processing pattern specialized asymmetric processing preference age moreover results indicate enhancement bilateral representation monaural sound input brainstem age dissimilar efficiency auditory signal transmission brainstem cortex along auditory pathway children adults suggested developmental differences might due functional experiencedependent well anatomical changes findings present study offer important information maturational differences children adults responses theta beta gamma rates current study important implications understanding developmental disorders known associated deviances neural auditory processing