Early Components of the Averaged Electroencephalic Response in Relation to Rise-Decay Time and Duration of Pure Tones

Lane, R.H.; Kupperman, Gerard L.; Goldstein, Robert E.

doi:10.1044/jshr.1402.408

Cited by 14 publications

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“…The complex sounds used in experiments 1 and 2 generated reliable Na and Pa responses, with the timing of these components ͑approximately 22 and 32 ms, respectively͒ consistent with those reported by previous research employing pure tone stimuli ͑e.g., Lane et al, 1971;Thornton et al, 1977;Woods et al, 1993. Moreover, the first reliable effect of mistuning observed within MLAERs was the modulation of Pa mean amplitude.…”

Section: Discussionmentioning

confidence: 91%

“…In addition, onset and offset ramps were reduced from 2.5 to 1.5 ms ͑cf. Lane et al, 1971;Skinner and Antinoro, 1971͒. All sounds were calibrated to 85 dB SPL and played over Eartone 3A insert earphones ͑Indianapolis, IN͒ while participants watched a silent movie in a sound-attenuating chamber. All other aspects of the stimuli and task were identical to experiment 1.…”

Section: Stimuli and Taskmentioning

confidence: 99%

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Representation of concurrent acoustic objects in primary auditory cortex

Dyson

Alain

2003

The Journal of the Acoustical Society of America

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Auditory scene analysis involves the simultaneous grouping and parsing of acoustic data into separate mental representations (i.e., objects). Over two experiments, we examined the sequence of neural processes underlying concurrent sound segregation by means of recording of human middle latency auditory evoked responses. Participants were presented with complex sounds comprising several harmonics, one of which could be mistuned such that it was not an integer multiple of the fundamental frequency. In both experiments, Na (approximately 22 ms) and Pa (approximately 32 ms) waves were reliably generated for all classes of stimuli. For stimuli with a fundamental frequency of 200 Hz, the mean Pa amplitude was significantly larger when the third harmonic was mistuned by 16% of its original value, relative to when it was tuned. The enhanced Pa amplitude was related to an increased likelihood in reporting the presence of concurrent auditory objects. Our results are consistent with a low-level stage of auditory scene analysis in which acoustic properties such as mistuning act as preattentive segregation cues that can subsequently lead to the perception of multiple auditory objects.

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Section: Discussionmentioning

confidence: 91%

Section: Stimuli and Taskmentioning

confidence: 99%

Representation of concurrent acoustic objects in primary auditory cortex

Dyson

Alain

2003

The Journal of the Acoustical Society of America

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“…Stimulus intensity changes strongly influenced these components' amplitudes, both in this study, and in comparable human studies [ 16-18,351. Much the same was true of the effects of long-versus short-duration acoustic stimuli [ 15,23,29,37]. Buchwald et al [3] investigated the waveform morphology, stimulus rate-dependence and barbiturate sensitivity of a similar set of cat AEP components, with results also suggesting strong functional similarity between cat and human AEPs at these 'middle' tatencies.…”

Section: Pi0 Through N45 (Principal Components 1 and 2)mentioning

confidence: 98%

Middle and long latency auditory evoked potentials in cat. II. Component distributions and dependence on stimulus factors

Starr

Farley

1983

Hearing Research

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The middle (IO-50 ms) and long (50-600 ms) latency periods of the auditory evoked potential (AI,P) were investigated in muscle-paralyzed. artificially respired cats wtth respect to two issues: (I) thr distribution of components across the skull. and (2) the effects of changing stimulus inten\ity on component latencies and amplitudes. The distributional data were gathered during a behavioral study in which four behavioral tasks related to classical pupillary conditioning \here used to vary attentiirnal and arousal processes. The distributions across the skull surface (averaged across tasks) of I? peaks and troughs (PIO. Nl3. P17. N22. P3l. N4l. P55, N70. NIOO. Nl40. P260 and NSZO) and seven prtncipal components derived from the set of waveforms collected during this experiment are reported. Both peah amplitudes and principal component scores were distributed differentially across the skull wrface. In the second experiment. acoustic stimulus intensity was varied. and AEPs collected from a vertex and temporal electrode site. In general. increasing stimulus intensity had a stronger influence on the earher portion\ of the AEP. where increased amplitude and decreased latency w'as the rule. than on later ones. Ihe relationships between cat and human AEP components were discussed hased on both in this paper and in previous papers.

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Effects of variations in stimulus rise-decay time upon the early components of the auditory evoked response

Beiter

Hogan

1973

Electroencephalography and Clinical Neurophysiology

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Early Components of the Averaged Electroencephalic Response in Relation to Rise-Decay Time and Duration of Pure Tones

Cited by 14 publications

References 0 publications

Representation of concurrent acoustic objects in primary auditory cortex

Representation of concurrent acoustic objects in primary auditory cortex

Middle and long latency auditory evoked potentials in cat. II. Component distributions and dependence on stimulus factors

Effects of variations in stimulus rise-decay time upon the early components of the auditory evoked response

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