Operating range and maximum response of single auditory nerve fibers

Smith, Robert L.; Brachman, Michael L.

doi:10.1016/0006-8993(80)90817-3

Cited by 69 publications

(22 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This a'inding, which also applies to vowel stimuli (Young et al, 1981), may be related in part to the fact that the dynamic range of auditory-nerve fibers is greater at the onset of tone bursts than during the steady-state condition (Smith and Brachman, 1980a). There is of course a lower stimulus level during the 50-ms interval used to measure onset rate, since the fricative stimuli have a 75-ms rise time.…”

Section: Discussionmentioning

confidence: 97%

Speech coding in the auditory nerve: III. Voiceless fricative consonants

Delgutte

Kiang

1984

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

Responses of auditory-nerve fibers in anesthetized cats were recorded for synthetic voiceless fricative consonants. The four stimuli (/x/, /s/, /s/, and /f/) were presented at two levels corresponding to speech in which the levels of the vowels would be approximately 60 and 75 dB SPL, respectively. Discharge patterns were characterized in terms of PST histograms and their power spectra. For both stimulus levels, frequency regions in which the stimuli had considerable energy corresponded well with characteristic-frequency (CF) regions in which average discharge rates were the highest. At the higher level, the profiles of discharge rate against CF were more distinctive for the stimulus onset than for the central portion. Power spectra of PST histograms had large response components near fiber characteristic frequencies for CFs up to 3-4 kHz, as well as low-frequency components for all fibers. The relative amplitudes of these components varied for the different stimuli. In general, the formant frequencies of the fricatives did not correspond with the largest response components, except for formants below about 3 kHz. Processing schemes based on fine time patterns of discharge that were effective for vowel stimuli generally failed to extract the formant frequencies of fricatives.

show abstract

Section: Discussionmentioning

confidence: 97%

Speech coding in the auditory nerve: III. Voiceless fricative consonants

Delgutte

Kiang

1984

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

show abstract

“…Ways of assigning dynamic range Some experienced researchers have stated neuronal dynamic ranges without defining dynamic range at all (e.g. Smith and Brachman, 1980). Others have favored a numerical approach, in which the endpoints of the neuronal dynamic range are formally identified using one of four endpoint schemes.…”

Section: Dynamic Range Schemes and Their Problemsmentioning

confidence: 99%

Dynamic range relations for auditory primary afferents

Nizami

2005

Hearing Research

View full text Add to dashboard Cite

“…However, what the elegant work of Guinan and his colleagues has revealed is that the purpose of the cochlear efferent system is superordinate to all of these specific functions. Namely, the purpose of the MOC system is to continually adjust the amplification provided by the OHCs so that the range of basilar-membrane motion better fits the quitelimited dynamic range of the primary afferent fibers (Smith and Brachman, 1980;Yates et al, 1990;see Fig. S3 in the online supplement for this article).…”

Section: F Possible Alternative Explanationsmentioning

confidence: 99%

Changes in otoacoustic emissions during selective auditory and visual attention

Walsh

Pasanen

McFadden

2015

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

Previous studies have demonstrated that the otoacoustic emissions (OAEs) measured during behavioral tasks can have different magnitudes when subjects are attending selectively or not attending. The implication is that the cognitive and perceptual demands of a task can affect the first neural stage of auditory processing-the sensory receptors themselves. However, the directions of the reported attentional effects have been inconsistent, the magnitudes of the observed differences typically have been small, and comparisons across studies have been made difficult by significant procedural differences. In this study, a nonlinear version of the stimulus-frequency OAE (SFOAE), called the nSFOAE, was used to measure cochlear responses from human subjects while they simultaneously performed behavioral tasks requiring selective auditory attention (dichotic or diotic listening), selective visual attention, or relative inattention. Within subjects, the differences in nSFOAE magnitude between inattention and attention conditions were about 2-3 dB for both auditory and visual modalities, and the effect sizes for the differences typically were large for both nSFOAE magnitude and phase. These results reveal that the cochlear efferent reflex is differentially active during selective attention and inattention, for both auditory and visual tasks, although they do not reveal how attention is improved when efferent activity is greater.

show abstract

Operating range and maximum response of single auditory nerve fibers

Cited by 69 publications

References 10 publications

Speech coding in the auditory nerve: III. Voiceless fricative consonants

Speech coding in the auditory nerve: III. Voiceless fricative consonants

Dynamic range relations for auditory primary afferents

Changes in otoacoustic emissions during selective auditory and visual attention

Contact Info

Product

Resources

About