Some Physiologic Aspects of the Averaged Vertex Response in Humans

Cody, D. Thane R.; Townsend, Gary L.

doi:10.3109/00206097309070053

Int J Audiol

1973

DOI: 10.3109/00206097309070053

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Some Physiologic Aspects of the Averaged Vertex Response in Humans

D. Thane R. Cody

Gary L. Townsend

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Cited by 8 publications

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References 7 publications

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“…The minimum duration necessary to elicit an OFF response has been reported to be as short as 310 msec (Johannsen, Keidel, & Spreng, 1972) and as long as 1,500 msec, showing much variability across subjects (Rose & Malone, 1965). Cody and Townsend (1973) report an inability to record OFF responses from some subjects with durations as long as 3 sec. Johannsen et a1.…”

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Auditory evoked brain responses: Comparison of ON and OFF responses at long and short durations

Schweitzer

1977

Perception & Psychophysics

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Average evoked brain responses (EBRs) to three durations of one kilohertz pure-tone stimuli were computed from human scalp recordings. Stimuli of 25,75, and 2,000 msec duration were each presented binaurally at each of eight equally spaced intensity levels, ranging from 58 to 86 dB SPL. EBRs computed immediately following presentation, and immediately following removal of the 2,000-msec-duration stimulus result in ON and OFF responses, respectively. EBRs computed immediately following presentation of the 25-and 75-msec-duration stimuli appear to be the result of the sum of separate responses to stimulus onset and offset. Computerdissected ON and OFF EBRs to short-duration stimuli are very similar in waveform and amplitude to the responses evoked by the onset and offset, respectively, of the 2,000-msec duration stimulus. Dissected ON and OFF responses demonstrate linear amplitude-intensity functions in amplitude ranges similar to respective ON and OFF responses to 2,000-msec stimulation. The data suggest that ON and OFF responses are mediated by independent physiological mechanisms.

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confidence: 99%

Auditory evoked brain responses: Comparison of ON and OFF responses at long and short durations

Schweitzer

1977

Perception & Psychophysics

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Age-related changes in the auditory evoked brainstem

Schmidt

Wedel

1980

Arch Otorhinolaryngol

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The auditory evoked brainstem responses of guniea pigs in two age groups were recorded and examined for evidence of age-dependent changes at peripheral stations in the auditory pathway. Because pigmented guinea pigs have been found to be less sensitive to sounds than albinos, both groups were included in this study. Old and young animals did not differ in response latency or in the conduction times associated with the individual potentials. By contrast, the amplitudes of the brainstem responses to high-frequency stimuli were distinctly reduced in old guinea pigs, with no difference in the dynamic of the amplitude between the two age groups. Within each age group, albino and pigmented animals resembled one another in all parameters studied. The effect of the aging process at the peripheral stations of the auditory pathway is discussed in the light of these results.

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The cumulative effects of different stimulus repitition rates on the auditory evoked response in man

Butler¹

1973

Electroencephalography and Clinical Neurophysiology

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Some Physiologic Aspects of the Averaged Vertex Response in Humans

Cited by 8 publications

References 7 publications

Auditory evoked brain responses: Comparison of ON and OFF responses at long and short durations

Auditory evoked brain responses: Comparison of ON and OFF responses at long and short durations

Age-related changes in the auditory evoked brainstem

The cumulative effects of different stimulus repitition rates on the auditory evoked response in man

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