scholarly journals Auditory cortex plasticity in musicians

2021 ◽  
Vol 31 (Supplement_2) ◽  
Author(s):  
Cláudia Reis ◽  
Margarida Teixeira
Keyword(s):  
Auditory Cortex ◽  
Auditory Processing ◽  
Evoked Potential ◽  
Auditory Evoked Potential ◽  
Cortical Inhibition ◽  
Control Group ◽  
Average Amplitude ◽  
Inhibition Effect ◽  
Long Latency ◽  
The Right

Abstract Background The objective of this study was to verify wether it was possible to observe greater plasticity of the auditory cortex and greater benefits in terms of auditory processing, better discrimination, attention and identification of rare stimuli, in musicians, verified through the performance of Long Latency Auditory Evoked Potential, P300, with and without competitive noise, in musicians compared to non-musician. Methods 20 individuals were divided into two groups: 8 in the musicians, and 12 in the control group. The P300 values were compared between the two groups and then between the results of the P300 with and without competitive noise, in both groups. Results When comparing the results without competitive noise, it appears that the average amplitude was higher in the group of musicians compared to the control group, in both ears. Latency was lower in the control group, only in the right ear. With competitive noise, in both groups, the average amplitude is lower, compared to the results of the P300 without competitive noise, both in the right ear and in the left ear, and this effect is more considerable in the group of musicians. Regarding latency, theaverage of the P300 with competitive noise, in both ears, with a greater increase in latency values, in the group of musicians. Conclusion Musicians show a greater cortical inhibition effect compared to non-musicians, demonstrating that the musician’s central auditory system shows greater activation, which can result in better performance in functions such as attention and discrimination, due to training by musical practice.

scholarly journals Electrophysiological and Behavioral Evaluation of Auditory Processing in Adults with Dysphonia

2020 ◽  
Author(s):  
Ana Cláudia Mondini Ribeiro Bez ◽  
Cyntia Barbosa Laureano Luiz ◽  
Sabrina Mazzer Paes ◽  
Renata Rangel Azevedo ◽  
Daniela Gil
Keyword(s):  
Auditory Processing ◽  
Therapeutic Process ◽  
Behavioral Assessment ◽  
Oral Communication ◽  
Clinical History ◽  
Auditory Evoked Potential ◽  
Central Auditory Processing ◽  
Complex Stimuli ◽  
Long Latency ◽  
The Right

Abstract Introduction Dysphonia is an oral communication disorder. The voice and hearing are interrelated aspects. Hearing is an important sensory input for monitoring the vocal pattern. The relation between hearing abilities and dysphonia represents a contribution both in scientific and in clinical terms, especially in cases in which satisfactory results are not achieved in the therapeutic process. Objective To characterize long-latency auditory evoked potential (P300) with tonal and complex stimuli, and to make a behavioral evaluation of auditory processing in adults with behavioral dysphonia. Method The sample used for the present study consisted of 20 subjects from both genders with ages ranging from 18 and 58, who were diagnosed with behavioral dysphonia. The evaluations occurred in a single 2-hour session, in which the procedures of clinical history, pure tone and speech audiometries, acoustic immittance measures, and behavioral and electrophysiological evaluations of auditory processing were performed. Results The descriptive measures of P3 latency elicited by tonal and complex stimuli showed similar results for the right and left ears, without statistically significant differences. In the qualitative analysis, the results observed were within the normality patterns for the P3 component for both tonal and complex stimuli. As for the behavioral evaluation of auditory processing, abnormal results were observed in 100% of the sample. Abnormalities were found in the auditory skills of ordering and temporal resolution and figure-background obtained from the duration pattern, random gap detection, and dichotic tests (syllables and words), respectively. Conclusion The evaluated patients presented central auditory processing disorder, evidenced by behavioral assessment.

scholarly journals Differences and similarities in the long-latency auditory evoked potential recording of P1-N1 for different sound stimuli

Revista CEFAC ◽  
2019 ◽  
Vol 21 (2) ◽  
Author(s):  
Pamela Papile Lunardelo ◽  
Humberto de Oliveira Simões ◽  
Sthella Zanchetta
Keyword(s):  
Evoked Potential ◽  
Simultaneous Recording ◽  
Auditory Evoked Potential ◽  
Sample Population ◽  
Speech Discrimination ◽  
Verbal Stimuli ◽  
Speech Stimuli ◽  
Long Latency ◽  
Potential Recording ◽  
The Right

ABSTRACT Purpose: this study aimed at illustrating the similarities and differences in the recording of components P1 and N1 for verbal and non-verbal stimuli, in an adult sample population, for reference purposes. Methods: twenty-one adult, eutrophic individuals of both sexes were recruited for this study. The long-latency auditory evoked potential was detected by bilateral stimulation in both ears, using simultaneous recording, with non-verbal stimuli and the syllable /da/. Results: for non-verbal and speech stimuli, N1 was identified in 100.0% of the participants, whereas P1 was observed in 85.7% and 95.2% individuals for non-verbal and speech stimuli, respectively. Significant differences were observed for the P1 and N1 amplitudes between the ears (p <0.05); the P1 component, in the left ear, was higher than that in the right ear, whereas the N1 component was higher in the right one. Regarding the stimuli, the amplitude and latency values of N1 were higher for speech, whereas in P1, different results were obtained only in latency. Conclusion: the N1 component was the most frequently detected one. Differences in latency and amplitude for each stimuli occurred only for N1, which can be justified by its role in the process of speech discrimination.

scholarly journals Test-Retest of Long Latency Auditory Evoked Potentials (P300) with Pure Tone and Speech Stimuli

2016 ◽  
Vol 21 (02) ◽  
pp. 134-139 ◽  
Author(s):  
Ana Perez ◽  
Karin Ziliotto ◽  
Liliane Pereira
Keyword(s):  
Evoked Potentials ◽  
Auditory Processing ◽  
Pure Tone ◽  
Auditory Evoked Potentials ◽  
Evoked Potential ◽  
Auditory Evoked Potential ◽  
Speech Stimulus ◽  
P300 Latency ◽  
Speech Stimuli ◽  
Long Latency

Introduction Long latency auditory evoked potentials, especially P300, have been used for clinical evaluation of mental processing. Many factors can interfere with Auditory Evoked Potential - P300 results, suggesting large intra and inter-subject variations. Objective The objective of the study was to identify the reliability of P3 components (latency and amplitude) over 4–6 weeks and the most stable auditory stimulus with the best test-retest agreement. Methods Ten normal-hearing women participated in the study. Only subjects without auditory processing problems were included. To determine the P3 components, we elicited long latency auditory evoked potential (P300) by pure tone and speech stimuli, and retested after 4–6 weeks using the same parameters. We identified P300 latency and amplitude by waveform subtraction. Results We found lower coefficient of variation values in latency than in amplitude, with less variability analysis when speech stimulus was used. There was no significant correlation in latency measures between pure tone and speech stimuli, and sessions. There was a significant intrasubject correlation between measures of latency and amplitude. Conclusion These findings show that amplitude responses are more robust for the speech stimulus when compared with its pure tone counterpart. The P300 indicated stability for latency and amplitude measures when the test-retest was applied. Reliability was higher for amplitude than for latency, with better agreement when the pure tone stimulus was used. However, further research with speech stimulus is needed to clarify how these stimuli are processed by the nervous system.

scholarly journals P3 Cognitive Potential in Cochlear Implant Users

2018 ◽  
Vol 22 (04) ◽  
pp. 408-414 ◽  
Author(s):  
Signe Grasel ◽  
Mario Greters ◽  
Maria Goffi-Gomez ◽  
Roseli Bittar ◽  
Raimar Weber ◽  
...  
Keyword(s):  
Speech Recognition ◽  
Cochlear Implant ◽  
Auditory Processing ◽  
Evoked Potential ◽  
Control Group ◽  
Central Auditory Processing ◽  
Speech Discrimination ◽  
Significant Difference ◽  
Cortical Responses ◽  
Peripheral Auditory System

Introduction The P3 cognitive evoked potential is recorded when a subject correctly identifies, evaluates and processes two different auditory stimuli. Objective to evaluate the latency and amplitude of the P3 evoked potential in 26 cochlear implant users with post-lingual deafness with good or poor speech recognition scores as compared with normal hearing subjects matched for age and educational level. Methods In this prospective cohort study, auditory cortical responses were recorded from 26 post-lingual deaf adult cochlear implant users (19 with good and 7 with poor speech recognition scores) and 26 control subjects. Results There was a significant difference in the P3 latency between cochlear implant users with poor speech recognition scores (G-) and their control group (CG) (p = 0.04), and between G- and cochlear implant users with good speech discrimination (G+) (p = 0.01). We found no significant difference in the P3 latency between the CG and G+. In this study, all G- patients had deafness due to meningitis, which suggests that higher auditory function was impaired too. Conclusion Post-lingual deaf adult cochlear implant users in the G- group had prolonged P3 latencies as compared with the CG and the cochlear implant users in the G+ group. The amplitudes were similar between patients and controls. All G- subjects were deaf due to meningitis. These findings suggest that meningitis may have deleterious effects not only on the peripheral auditory system but on the central auditory processing as well.

Characterization of Auditory Evoked Potential for Different Tones in Marmoset Primary Auditory Cortex

2019 ◽  
pp. 95-101
Author(s):  
Felipe A. Araujo ◽  
Eduardo B. Jacobi ◽  
Juliana Avila-Souza ◽  
Jose F. Rodrigues ◽  
Renan C. Moioli ◽  
...  
Keyword(s):  
Auditory Cortex ◽  
Evoked Potential ◽  
Primary Auditory Cortex ◽  
Auditory Evoked Potential

Effect of Auditory Evoked Potential Index Monitoring on Anesthetic Drug Requirements and Recovery Profile after Laparoscopic Surgery

2003 ◽  
Vol 99 (4) ◽  
pp. 813-818 ◽  
Author(s):  
Alejandro Recart ◽  
Paul F. White ◽  
Agnes Wang ◽  
Irina Gasanova ◽  
Stephanie Byerly ◽  
...  
Keyword(s):  
Laparoscopic Surgery ◽  
Fast Track ◽  
Evoked Potential ◽  
Rating Scale ◽  
Auditory Evoked Potential ◽  
Control Group ◽  
Early Recovery ◽  
Anesthetic Drugs ◽  
Desflurane Concentration ◽  
Pacu Stay

Background The auditory evoked potential (AEP) monitor provides an electroencephalogram-derived index (AAI) that has been reported to correlate with the central nervous system depressant effects of anesthetic drugs. This clinical utility study was designed to test the hypothesis that AAI-guided administration of the maintenance anesthetics and analgesics would improve their titration and thereby provide a faster recovery from general anesthesia. Methods Seventy consenting patients undergoing elective general surgery procedures were randomly assigned to either a control (standard clinical practice) or AEP-monitored group. Although the AEP monitor was connected to all patients, the information from the monitor was only made available to the anesthesiologists assigned to patients in the AEP-monitored group. In the AEP-monitored group, the inspired desflurane concentration was titrated to maintain an AAI value of 15-20. In the control group, the inspired desflurane concentration was varied based on standard clinical signs. The AAI values and hemodynamic variables, as well as end-tidal desflurane concentrations, were recorded at 3- to 5-min intervals. The recovery times to achieve a White fast-track score greater than 12 and an Aldrete score of 10, as well as the actual duration of the PACU stay, were evaluated at 5- to 10-min intervals. Patient satisfaction with recovery from anesthesia was assessed using a 100-point verbal rating scale at 24 h after surgery. Results The average intraoperative AAI value in the AEP-monitored group was significantly higher than in the control group (16 +/- 5 vs. 11 +/- 8, P &lt; 0.05). Use of the AEP monitor reduced the desflurane requirement by 26% compared to the control group (P &lt; 0.01). In addition, the AEP-monitored group received less intraoperative fentanyl (270 +/- 120 vs. 390 +/- 203 microg, P &lt; 0.05) and more rapidly achieved fast-track eligibility (29 +/- 19 vs. 56 +/- 41 min, P &lt; 0.05). The time required to achieve an Aldrete score of 10 (60 +/- 31 vs. 98 +/- 55 min) and the duration of stay in the recovery room (78 +/- 32 vs. 106 +/- 54 min) were also significantly reduced in the AEP-monitored (vs. control) group (P &lt; 0.05). Conclusion Use of AEP monitoring as an adjunct to standard clinical monitors improved titration of anesthetic drugs, thereby facilitating the early recovery process after laparoscopic surgery.

scholarly journals Specific connectivity with Operculum 3 (OP3) brain region in acoustic trauma tinnitus: a seed-based resting state fMRI study

2019 ◽  
Author(s):  
Agnès Job ◽  
Anne Kavounoudias ◽  
Chloé Jaroszynski ◽  
Assia Jaillard ◽  
Chantal Delon-Martin
Keyword(s):  
Hearing Loss ◽  
Auditory Cortex ◽  
Functional Mri ◽  
Resting State ◽  
Primary Auditory Cortex ◽  
Acoustic Trauma ◽  
Control Group ◽  
New Model ◽  
The Veil ◽  
The Right

ABSTRACTTinnitus mechanisms remain poorly understood. Our previous functional MRI (fMRI) studies demonstrated an abnormal hyperactivity in the right parietal operculum 3 (OP3) in acoustic trauma tinnitus and during provoked phantom sound perceptions without hearing loss, which lead us to propose a new model of tinnitus. This new model is not directly linked with hearing loss and primary auditory cortex abnormalities, but with a proprioceptive disturbance related to middle-ear muscles. In the present study, a seed-based resting-state functional MRI method was used to explore the potential abnormal connectivity of this opercular region between an acoustic trauma tinnitus group presenting slight to mild tinnitus and a control group. Primary auditory cortex seeds were also explored because they were thought to be directly involved in tinnitus in most current models. In such a model, hearing loss and tinnitus handicap were confounding factors and were therefore regressed in our analysis. Between-groups comparisons showed a significant specific connectivity between the right OP3 seeds and the potential human homologue of the premotor ear-eye field (H-PEEF) bilaterally and the inferior parietal lobule (IPL) in the tinnitus group. Our findings suggest the existence of a simultaneous premotor ear-eye disturbance in tinnitus that could lift the veil on unexplained subclinical abnormalities in oculomotor tests found in tinnitus patients with normal vestibular responses. The present work confirms the involvement of the OP3 subregion in acoustic trauma tinnitus and provides some new clues to explain its putative mechanisms.

scholarly journals Long Latency Auditory Evoked Potential: What is Analyzed in National Researches

2014 ◽  
Vol 18 (S 01) ◽  
Author(s):  
Geise Ferreira ◽  
Ana David ◽  
Michele Garcia ◽  
Sheila Oppitz ◽  
Thalisson Silva ◽  
...  
Keyword(s):  
Evoked Potential ◽  
Auditory Evoked Potential ◽  
Long Latency
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