Title: Neurophysiological investigation of phonological input: Aging effects and development of normative data
Authors: Aerts, A. # ×
van Mierlo, P. #
Hallez, Hans
De Letter, M. #
Hartsuiker, R. #
Santens, P. #
Issue Date: 2013
Publisher: Academic Press
Series Title: Brain and Language vol:125 issue:3 pages:253-263
Abstract: The current study investigated attended and unattended auditory phoneme discrimination using the
P300 and Mismatch Negativity event-related potentials (ERPs). Three phonemic contrasts present in
the Dutch language were compared. Additionally, auditory word recognition was investigated by presenting
rare pseudowords among frequent words. Two main goals were: (1) obtain normative data for
ERP latencies (ms) and amplitudes (lV) and (2) examine aging influences. Seventy-one healthy subjects
(21–83 years) were included. During phoneme discrimination aging was associated with increased latencies
and decreased amplitudes. However, a discrepancy between attended and unattended processing, as
well as between phonemic contrasts, was found. During word recognition aging only had an impact on
ERPs elicited by real words, indicating that mainly semantic processes were altered leaving lexical processes
unharmed. Early sensory-perceptual processes, reflected by N100 and P50, were free from aging
influences. In future, neurophysiological normative data can be applied in the evaluation of acquired language
ISSN: 0093-934X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Computer Science Technology TC, Technology Campus Ostend
Technologiecluster Computerwetenschappen
× corresponding author
# (joint) last author

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