scholarly journals Sensitivity of cortical auditory evoked potential detection for hearing-impaired infants in response to short speech sounds

2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Bram Van Dun ◽  
Lyndal Carter ◽  
Harvey Dillon
Keyword(s):  
Evoked Potential ◽  
Hearing Impaired ◽  
Auditory Evoked Potential ◽  
Speech Sounds ◽  
Cortical Auditory Evoked Potential

scholarly journals Cortical Auditory Evoked Potential: evaluation of speech detection in adult hearing aid users

CoDAS ◽  
2014 ◽  
Vol 26 (5) ◽  
pp. 367-373 ◽  
Author(s):  
Alessandra Spada Durante ◽  
Margarita Bernal Wieselberg ◽  
Sheila Carvalho ◽  
Nayara Costa ◽  
Beatriz Pucci ◽  
...  
Keyword(s):  
Hearing Aids ◽  
Evoked Potential ◽  
Free Field ◽  
Sound Field ◽  
Automatic Detection ◽  
Cortical Response ◽  
Auditory Evoked Potential ◽  
Speech Sounds ◽  
Speech Detection ◽  
Cortical Auditory Evoked Potential

Purpose:To analyze the presence of auditory cortical potential and its correlation with psychoacoustic detection of speech sounds as well as the latency of the P1, N1 e P2 components presented in free field in hearing impaired adults with and without amplification.Methods:We evaluated 22 adults with moderate to severe symmetrical bilateral sensorineural hearing loss, regular users of bilateral hearing aids. Speech sounds of low (/m/), medium (/g/) and high (/t/) frequencies were presented in sound field in decreasing intensities of 75, 65 and of 55 dBSPL in free field with and without hearing aids. The used equipment performs automatic statistical detection of the presence of response; forthermore, the latencies of waves P1, N1 e P2 were labeled and the psychoacoustic perception was registered.Results:The results demonstrated the increased presence of cortical response with hearing aids. We observed the correlation between psychoacoustic perception and automatic detection of 91% for the sounds /g/ and /t/ and ranged from 73 to 86% for the sound /m/. The averages of latencies P1-P2-N1 decreased with both increasing intensity and the use of hearing aids for the three sounds. The differences were significant for the sounds /g/ and /t/ in comparison with and without hearing aids.Conclusion:There was increase in the presence of cortical auditory evoked potential with hearing aids. Automatic detection of cortical response provided with hearing aids showed 91% agreement with the psychoacoustic perception of the speech signal. In the analysis of latency measures of the P1, N1 and P2 components, it was observed a decrease with the increase of the signal intensity and the use of amplification for the three speech stimuli /m/, /g/ and /t/.

scholarly journals The effect of early versus late lipid infusion in parenteral nutrition on the biochemical and cortical auditory evoked potential parameters in preterm neonates

2019 ◽  
Vol 67 (1) ◽  
Author(s):  
Rania Mohamed Abdou ◽  
Hoda Mahmoud Ibrahim Weheiba
Keyword(s):  
Weight Gain ◽  
Parenteral Nutrition ◽  
Biochemical Parameters ◽  
Evoked Potential ◽  
Demographic Data ◽  
Auditory Evoked Potential ◽  
Preterm Neonates ◽  
Lipid Infusion ◽  
Significant Difference ◽  
Cortical Auditory Evoked Potential

Abstract Background As brain activity depends greatly on the functions provided by lipid membranes, dietary fat in early life can affect the developing nervous system. Despite the adoption of an early more aggressive parenteral nutrition approach with amino acid infusions still reluctance to the early use of intravenous lipids in neonates. Aim To compare the effect of delayed versus early introduction of intravenous lipid in preterm on the biochemical parameters and on brain development by the cortical auditory evoked potential (CAEP) latency and amplitude. Methods This is a comparative study included 49 neonates admitted at the ain shams university NICUs. Participants were divided into two groups: 26 in group of early lipid infusion and 23 in late lipid infusion, Demographic data, and biochemical parameters were documented during the 1st 2 weeks of life. The CAEP was performed at age of 6 months. The latency and amplitude of P1 were recorded and compared between both groups. Results In the present work we found that group of early lipid infusion had reach their full oral intake earlier with shorter duration of parenteral nutrition and length of stay. They had better weight gain and significantly better glucose level control than group of late lipid infusion. There was no significant difference in the other chemical parameters between both groups expect for the higher incidence of cholestasis in the group of late lipid infusion. At 6 months of age, the group of early lipid infusion had significantly shorter latency and amplitude of P1 than the group of late lipid infusion. Conclusion Early effective nutrition positively affect feeding tolerance and weight gain and maturation of higher brain centers brain.

Cellular generators of the cortical auditory evoked potential initial component

1992 ◽  
Vol 84 (2) ◽  
pp. 196-200 ◽  
Author(s):  
Mitchell Steinschneider ◽  
Craig E. Tenke ◽  
Charles E. Schroeder ◽  
Daniel C. Javitt ◽  
Gregory V. Simpson ◽  
...  
Keyword(s):  
Evoked Potential ◽  
Auditory Evoked Potential ◽  
Initial Component ◽  
Cortical Auditory Evoked Potential

Developmental changes in refractoriness of the cortical auditory evoked potential

2005 ◽  
Vol 116 (3) ◽  
pp. 648-657 ◽  
Author(s):  
Phillip M. Gilley ◽  
Anu Sharma ◽  
Michael Dorman ◽  
Kathryn Martin
Keyword(s):  
Evoked Potential ◽  
Auditory Evoked Potential ◽  
Developmental Changes ◽  
Cortical Auditory Evoked Potential

scholarly journals Cortical auditory-evoked potential as a biomarker of central auditory maturation in term and preterm infants during the first 3 months

Clinics ◽  
2021 ◽  
Vol 76 ◽  
Author(s):  
Dayane Domeneghini Didoné ◽  
Lilian Sanches Oliveira ◽  
Alessandra Spada Durante ◽  
Kátia de Almeida ◽  
Michele Vargas Garcia ◽  
...  
Keyword(s):  
Preterm Infants ◽  
Evoked Potential ◽  
Auditory Evoked Potential ◽  
Auditory Maturation ◽  
Cortical Auditory Evoked Potential
Sign in / Sign up

Export Citation Format

Share Document