P300- long-latency auditory evoked potential in normal hearing subjects: simultaneous recording value in Fz and Cz

Duarte, Josilene Luciene; Alvarenga, Kátia de Freitas; Banhara, Marcos Roberto; Melo, Ana Dolores Passarelli de; Sás, Roberta Moreno; Filho, Orozimbo Alves Costa

doi:10.1016/s1808-8694(15)30783-7

Cited by 32 publications

(34 citation statements)

References 22 publications

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“…3,5 To elicit the P300, a wide variety of paradigms have been used, of which the "oddball" paradigm is the most utilized. In a process of active attention, different stimuli, with the same modality and different characteristics, 6 are presented in a series such that one of them occurs relatively infrequently, that is, the oddball. 7 The amplitude of the P300 wave is highly influenced by individual characteristics and latency over the time neural activity takes to travel along the auditory pathway, including time spent in synaptic transmission and neural conduction.…”

Section: Introductionmentioning

confidence: 99%

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

Perez

Ziliotto

Pereira

2016

Int Arch Otorhinolaryngol

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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.

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Section: Introductionmentioning

confidence: 99%

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

Perez

Ziliotto

Pereira

2016

Int Arch Otorhinolaryngol

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“…They are subdivided into exogenous sensory evoked potentials (P1, N1, P2, N2), which are influenced by the physical characteristics of the stimulus, such as intensity, duration, and frequency, and endogenous sensory evoked potential (P3), predominantly influenced by events related to cognitive skills. 7 In adults, it is possible to evaluate exogenous and endogenous potentials. The criteria of normality in relation to cognitive skills are verified from the latency of these components.…”

Section: Introductionmentioning

confidence: 99%

Long Latency Auditory Evoked Potential in Term and Premature Infants

Didoné

Garcia

Silveira

2013

Int. Arch. Otorhinolaryngol.

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Introduction The research in long latency auditory evokes potentials (LLAEP) in newborns is recent because of the cortical structure maturation, but studies note that these potentials may be evidenced at this age and could be considered as indicators of cognitive development. Purpose To research the exogenous potentials in term and premature infants during their first month of life. Materials and Methods The sample consisted of 25 newborns, 15 term and 10 premature infants. The infants with gestational age under 37 weeks were considered premature. To evaluate the cortical potentials, the infants remained in natural sleep. The LLAEPs were researched binaurally, through insertion earphones, with frequent /ba/ and rare /ga/ speech stimuli in the intensity of 80 dB HL (decibel hearing level). The frequent stimuli presented a total of 80% of the presentations, and the rare, 20%. The data were statistically analyzed. Results The average gestational age of the term infants was 38.9 weeks (± 1.3) and for the premature group, 33.9 weeks (± 1.6). It was possible to observe only the potentials P1 and N1 in both groups, but there was no statistically significant difference for the latencies of the components P1 and N1 (p > 0.05) between the groups. Conclusion It was possible to observe the exogenous components P1 and N1 of the cortical potentials in both term and preterm newborns of no more than 1 month of age. However, there was no difference between the groups.

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“…Amplitude and latency of obligatory CAEP are contingent on the acoustic parameters of stimuli [30]. This wave is associated with the superior temporal cortex [31] and attentional orientation toward a visual target stimulus surrounded by several distracters [32]. The N2 wave represents the quality of sound perception, classification, and recognition [33].…”

Section: Discussionmentioning

confidence: 99%

Association between heart rhythm and cortical sound processing

2018

J. Integr. Neurosci.

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Processing of sound signals is an important factor for conscious human communication and such sound signals may be assessed through cortical auditory evoked potentials. Heart rate variability provides information about heart rate autonomic regulation. The association between resting heart rate variability and cortical auditory evoked potentials was investigated. Resting heart rate variability in the time and frequency domain and the cortical auditory evoked potential components were investigated. Subjects remained at rest for 10 minutes for recording of heart rate variability. Cortical auditory evoked potential examinations were then undertaken through frequency and duration protocols in both ears. Linear regression indicated that the amplitude of the N2 wave of the cortical auditory evoked potentials in the left ear (not right ear) was significantly influenced by the standard deviation of normal-to-normal heart beats (17.7%) and percentage of adjacent heart beat intervals with a difference of duration greater than 50 milliseconds (25.3%) for the time domain heart rate variability indices in the frequency protocol. In the duration protocol and in the left ear the latency of the P2 wave was significantly influenced by low (20.8%) and high frequency bands in normalized units (21%) and low frequency/high frequency ratio (22.4%) indices of heart rate variability spectral analysis. The latency of the N2 wave was significantly influenced bylow frequency (25.8%), high frequency (25.9%) and low frequency/high frequency ratio (28.8%). In conclusion, it is proposed that resting heart rhythm is associated with thalamo-cortical, cortical-cortical and auditory cortex pathways involved with auditory processing in the right hemisphere.

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P300- long-latency auditory evoked potential in normal hearing subjects: simultaneous recording value in Fz and Cz

Abstract: Fz and Cz active electrodes positioning can be considered one more resource to help in the P300 clinical analysis.

Cited by 32 publications

References 22 publications

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

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

Long Latency Auditory Evoked Potential in Term and Premature Infants

Association between heart rhythm and cortical sound processing

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