This paper reviews our current understanding of the development of the obligatory cortical auditory evoked potential (CAEP) components P1, N1, P2, and N2. Firstly, the adult CAEP is briefly reviewed with respect to its morphology, neural generators and stimulus-dependence. Secondly, age-related changes occurring from the newborn period through childhood and adolescence are reviewed. The focus is on the maturation of CAEP morphology, changes in the scalp topography of the various components, changes in their amplitude and latency and in their stimulus-dependence. This review identifies periods of development in which we have only limited understanding of cortical auditory processing, as revealed by evoked potentials.
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http://dx.doi.org/10.1016/j.heares.2005.11.008 | DOI Listing |
Hear Res
September 2024
Department of Communication Disorders, Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel; Hearing, Speech, and Language Center, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel. Electronic address:
Congenital or early-onset unilateral hearing loss (UHL) can disrupt the normal development of the auditory system. In extreme cases of UHL (i.e.
View Article and Find Full Text PDFHear Res
September 2024
Department of Otorhinolaryngology and Head and Neck Surgery, Erasmus Medical Center, Rotterdam, the Netherlands.
Objective: The acoustic change complex (ACC) is a cortical auditory evoked potential (CAEP) and can be elicited by a change in an otherwise continuous sound. The ACC has been highlighted as a promising tool in the assessment of sound and speech discrimination capacity, and particularly for difficult-to-test populations such as infants with hearing loss, due to the objective nature of ACC measurements. Indeed, there is a pressing need to develop further means to accurately and thoroughly establish the hearing status of children with hearing loss, to help guide hearing interventions in a timely manner.
View Article and Find Full Text PDFFront Hum Neurosci
April 2024
Department of Otolaryngology-Head and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.
Objectives: The auditory spatial processing abilities mature throughout childhood and degenerate in older adults. This study aimed to compare the differences in onset cortical auditory evoked potentials (CAEPs) and location-evoked acoustic change complex (ACC) responses among children, adults, and the elderly and to investigate the impact of aging and development on ACC responses.
Design: One hundred and seventeen people were recruited in the study, including 57 typically-developed children, 30 adults, and 30 elderlies.
Children (Basel)
November 2023
Department of Speech Language and Hearing Sciences, University of Colorado Boulder, 2501 Kittredge Loop Dr. UCB 409, Boulder, CO 80309, USA.
A significant portion of hearing-impaired children have additional disabilities, but data about the maturation of their auditory cortex are scarce. In these children, behavioral tests are often unreliable, and objective tests are needed for diagnostics and follow-up. This study aimed to explore auditory cortical maturation and language development, and the usability of an objective electroencephalogram-based biomarker in children with multiple disabilities.
View Article and Find Full Text PDFInt J Audiol
October 2024
Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
To study the correlation between P1 latency and the results of clinical language tests (Reynell III and TROG-2), the latter were used as they are recommended for follow-up assessments of children with cochlear implants (Cis) by the Swedish National Quality Register for children with hearing impairment. A clinical cohort study. Cross-sectional and consecutive sampling of 49 children with CIs coming for clinical follow-up assessment from March 2017 - December 2019.
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