Document Detail

Perinatal cerebral insults alter auditory event-related potentials.
MedLine Citation:
PMID:  21144679     Owner:  NLM     Status:  In-Data-Review    
BACKGROUND: Auditory event-related potentials (AERPs) can be used as indices of neural information processing. Altered AERPs have been reported in children and young adults with frontal lobe infarction.
AIM: To test the hypothesis that perinatal brain injury affects cortical auditory processing.
METHODS: We assessed AERPs at term, 6 and 12months of age in preterm infants [n=9, median gestational age (GA) 27.9, range 23.9-30.0wk], term infants with perinatal intracerebral hemorrhage (ICH) [n=5, GA 40.3, range 37.4-42.3wk], and term infants with perinatal asphyxia [n=4, GA 39.4, range 37.9-40.3wk]. Healthy preterm (n=16) and term infants (n=22) served as controls. A harmonic tone of 500-Hz frequency was used as standard and of 750-Hz as deviant stimulus. Mean AERP amplitudes were calculated over 100ms periods from 50 to 350ms. The developmental outcome was followed until 2years of age.
RESULTS: The term ICH (p=0.012) and asphyxia (p=0.0016) group had smaller or more negative responses to the deviant, resulting in smaller or more negative MMR amplitudes than those of the controls. The preterm ICH group did not differ significantly from their preterm born controls. MMR varied in all patient groups and was not associated with adverse outcome.
CONCLUSION: AERP alterations suggest that perinatal cerebral insults affect cortical auditory processing.
Jaana A Leipälä; Eino Partanen; Elena Kushnerenko; Minna Huotilainen; Vineta Fellman
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Publication Detail:
Type:  Journal Article     Date:  2010-12-07
Journal Detail:
Title:  Early human development     Volume:  87     ISSN:  1872-6232     ISO Abbreviation:  Early Hum. Dev.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-01-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708381     Medline TA:  Early Hum Dev     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  89-95     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Ltd. All rights reserved.
National Institute for Health and Welfare (THL), Finnish Office for Health Care Technology Assessment (FinOHTA), Helsinki, Finland; Hospital for Children and Adolescents, Department of Pediatrics, University of Helsinki, Finland.
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