Summed Evoked Responses Using Pure-Tone Stimuli

McCandless, Geary A.; Best, Lavar

doi:10.1044/jshr.0902.266

Cited by 41 publications

(14 citation statements)

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“…Onishi and Davis (1968) reported that the amplitUde of the NI-P2 component of the auditory evoked potentials recorded from the vertex increased in proportion to the sound duration when it was shorter than 30 msec. Furthermore, several researchers found that lengthening the sound duration over about 30 msec did not cause any increase in the amplitude of the NI-P2 component (McCandless & Best, 1966;Picton, Woods, & Proulx, 1978). These results, taken together, suggest that the vertex potentials reflect the temporal integration of sound energy within about 30 msec after the stimulus onset.…”

supporting

confidence: 49%

Temporal location effect of noise burst intensity on auditory evoked potentials

Kuchinomachi¹

1981

Psychobiology

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This study was conducted to explore the hypothesis that the N1-P2 component of the auditory evoked potential reflects exclusively the stimulus intensity around 30 msec after sound onset rather than the stimulus intensity immediately after sound onset or the simple integrated value of sound energy. In Experiment 1, subjects were presented randomly with three kinds of brief noise bursts which differed in temporal locations of the plateau intensity. The amplitude of the N1-P2 component was significantly larger in the condition in which the plateau intensity appeared 30 msec after the noise onset than it was in the condition in which it appeared immediately after the onset, and it disappeared less than 30 msec after the onset. Furthermore, the results in Experiment 2 suggest that the N1-P2 component was little influenced by the fall time of noise bursts at approximately 40 msec after the onset. These results, taken together, seem to support the hypothesis stated above.It has been suggested that the auditory system acts as a temporal integrator of sound energy (Olsen & Carhart, 1966;Zwislocki, 1960Zwislocki, , 1969. Onishi and Davis (1968) reported that the amplitUde of the NI-P2 component of the auditory evoked potentials recorded from the vertex increased in proportion to the sound duration when it was shorter than 30 msec. Furthermore, several researchers found that lengthening the sound duration over about 30 msec did not cause any increase in the amplitude of the NI-P2 component (McCandless & Best, 1966;Picton, Woods, & Proulx, 1978). These results, taken together, suggest that the vertex potentials reflect the temporal integration of sound energy within about 30 msec after the stimulus onset.A close examination of Onishi and Davis' (1968) results, however, reveals that their data cannot be consistently interpreted by the view stated above. For instance, the amplitUde of the NI-P2 component of the evoked potential to a sound with a 3-msec rise time and a 30-msec plateau duration was not larger than it was to a sound with a 30-msec rise time and a 3-msec plateau duration. If sound energy is simply integrated over the 33 msec after the stimulus onset, the integrated value in the former sound would be over twice as great as that in the latter sound. Therefore, it is difficult to interpret this result in terms of simple integration of sound energy. Furthermore, the concept of ceiling effect cannot explain the result satisfactorily.On the other hand, if it is hypothesized that the stimulus intensity around 30 msec after stimulus onset is more effective for evoking the NI-P2 component than is the stimulus intensity immediately after the stimulus onset, Onishi and Davis' data seem to be easily interpreted. EXPERIMENT 1 MethodThe subjects were II paid male college students between the ages of 18 and 22 years. All subjects reported that they had no hearing difficulty.The stimuli were bursts of white noise generated by an NF, WF-711 noise generator. The noise bursts were shaped and temporally controlled by a computer and ...

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supporting

confidence: 49%

Temporal location effect of noise burst intensity on auditory evoked potentials

Kuchinomachi¹

1981

Psychobiology

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“…Only two studies provide some insight into this matter. McCandless and Best (1966) report no consistent differences in the waveform produced by 30-and 700-msec-duration stimuli. Rau (1968) reports no slope differences in amplitude-intensity power functions with durations of 10 and 1,500 msec.…”

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confidence: 94%

“…Only three to four stimulus intensities were used to compute these functions, making it difficult to validly compare the function slopes. Moreover, neither McCandless and Best (1966) nor Rau (1968) had the study of possible ON and OFF interaction as their primary purpose.…”

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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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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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“…(2) Wide individual differences in the rate of increase in AER amplitude have been found (Davis et ai, 1968;Rose & Ruhm, 1966;McCandless & Best, 1966). (3) Similar mathematical functions have been found to fit both psychophysical judgment and AER amplitude data (Rosner & Goff, 1967;Beck & Rosner, 1968;Keidel & Spreng, 1965).…”

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confidence: 96%

Contrast effects on the auditory evoked response and its relation to psychophysical judgments

Buchsbaum

Silverman

Henkin

et al. 1971

Perception & Psychophysics

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An auditory average evoked response (AER) procedure was used to search for a physiological counterpart of the contrast effect-the tendency for a S's judgment of the intensity of a stimulus to be modified by the intensity of prior stimulation. When a tone was preceded by a softer tone, its AER amplitude increased; conversely, when a tone followed a louder tone, amplitude decreased. Irregular intervals between tones decreased the AER contrast effect, as did increasing the interval between tones. Further, significant correlations were found between individual scores on the AER contrast procedure and performance on a battery of psychophysical tasks.

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Summed Evoked Responses Using Pure-Tone Stimuli

Cited by 41 publications

References 0 publications

Temporal location effect of noise burst intensity on auditory evoked potentials

Temporal location effect of noise burst intensity on auditory evoked potentials

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

Contrast effects on the auditory evoked response and its relation to psychophysical judgments

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