Middle Latency Response Study of Auditory Evoked Potentials' Amplitudes and Lantencies Audiologically Normal Individuals

Neves, Ivone Ferreira; Gonçalves, Isabela Crivellaro; Leite, Renata Aparecida; Magliaro, Fernanda Cristina Leite; Matas, Carla Gentile

doi:10.1016/s1808-8694(15)31125-3

Cited by 10 publications

(11 citation statements)

References 10 publications

(13 reference statements)

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“…Althen et al (2011) posited that the Na represented an early automatic deviant detection process, similar to the conclusion reached by Sonnadara et al (2006) -Cz reference. The Na in this study showed an anterior focus and a latency of 29 ms, longer than usually found (Neves et al, 2007), but this…”

Section: Accepted Manuscriptcontrasting

confidence: 73%

Trials and intensity effects in single-trial ERP components and autonomic responses in a dishabituation paradigm with very long ISIs

MacDonald

Barry

Bonfield

2015

International Journal of Psychophysiology

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Section: Accepted Manuscriptcontrasting

confidence: 73%

Trials and intensity effects in single-trial ERP components and autonomic responses in a dishabituation paradigm with very long ISIs

MacDonald

Barry

Bonfield

2015

International Journal of Psychophysiology

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“…These results are in agreement with previous studies of Purdy et al and Neves et al, in which latency values in our study for Na and Pa were more similar to those found by them [7][8][9][10][11][12][13][14][15][16][17][18][19][20].…”

Section: Discussionsupporting

confidence: 94%

“…According to Hall III [10] and Neves et al [7], the NaPa component would be the most robust and more visible. In the current study, we use both latency and amplitude measurement to compare the results between the SLI and control group.…”

Section: Discussionmentioning

confidence: 99%

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Auditory middle latency responses in children with specific language impairment

Al-Saif

Abdeltawwab

Khamis

2012

Eur Arch Otorhinolaryngol

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Auditory-evoked potentials represent the response of the auditory pathway to an auditory stimulus. Specific language impairment (SLI) children have delayed language development with difficulties in both understanding and producing spoken language. Hence, the purpose of this study was to determine whether a group of children with SLI had abnormal changes in the auditory middle latency response (AMLR). AMLR was obtained for 19 SLI children and they were studied and compared to normal. Audiological assessment and speech language tests were done for the study group. The results revealed no significant statistical differences between SLI children and the normal with regard to AMLR (P > 0.05). Our results suggest that children with SLI do not have abnormal auditory system response at the level measured by AMLR casting doubt on affection of the hypnotized origin of AMLR, mainly primary auditory cortex, as a cause for delayed language development in those children.

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“…The AMLR occurs after the auditory brainstem response (ABR) and consists of three main peaks: Na, Pa, and Nb (Goldstein and Rodman, 1967). The latency of the early phase enhancement matches that of the Na (~20 – 24 ms), Pa (~31 – 35 ms) and Nb (~42 – 50 ms) (Goldstein and Rodman, 1967; Neves et al, 2007). Since the P1 peaked at about 60 ms in this study, the later portions of this enhanced synchrony could partially reflect the P1 as well.…”

Section: Discussionmentioning

confidence: 54%

Neural Time Course of Echo Suppression in Humans

Backer¹,

Hill²,

Shahin³

et al. 2010

J. Neurosci.

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In reverberant environments, the brain can suppress echoes so that auditory perception is dominated by the primary or leading sounds. Echo suppression comprises at least two distinct phenomena whose neural bases are unknown: spatial translocation of an echo toward the primary sound, and object capture to combine echo and primary sounds into a single event. In an electroencephalography study, we presented subjects with primary-echo (leading-lagging) click pairs in virtual acoustic space, with interclick delay at the individual's 50% suppression threshold. On each trial, subjects reported both click location (one or both hemifields) and the number of clicks they heard (one or two). Thus, the threshold stimulus led to two common percepts: Suppressed and Not Suppressed. On some trials, a subset of subjects reported an intermediate percept, in which two clicks were perceived in the same hemifield as the leading click, providing a dissociation between spatial translocation and object capture. We conducted time-frequency and event-related potential analyses to examine the time course of the neural mechanisms mediating echo suppression. Enhanced gamma band phase synchronization (peaking at ϳ40 Hz) specific to successful echo suppression was evident from 20 to 60 ms after stimulus onset. N1 latency provided a categorical neural marker of spatial translocation, whereas N1 amplitude still reflected the physical presence of a second (lagging) click. These results provide evidence that (1) echo suppression begins early, at the latest when the acoustic signal first reaches cortex, and (2) the brain spatially translocates a perceived echo before the primary sound captures it.

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Middle Latency Response Study of Auditory Evoked Potentials' Amplitudes and Lantencies Audiologically Normal Individuals

Abstract: We established average and standard deviation values for latency and amplitude parameters for components Na, Pa, Nb and Na-Pa and Pa-Nb, under conditions C3A1, C4A1, C3A2, C4A2, providing a parameter for the analysis and interpretation of this potential.

Cited by 10 publications

References 10 publications

Trials and intensity effects in single-trial ERP components and autonomic responses in a dishabituation paradigm with very long ISIs

Trials and intensity effects in single-trial ERP components and autonomic responses in a dishabituation paradigm with very long ISIs

Auditory middle latency responses in children with specific language impairment

Neural Time Course of Echo Suppression in Humans

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