Organization of the human superior olivary complex

Moore, Jean K.

doi:10.1002/1097-0029(20001115)51:4<403::aid-jemt8>3.0.co;2-q

Cited by 83 publications

(44 citation statements)

References 73 publications

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“…Two specialized nuclei of the SOC, the lateral superior olive (LSO) and the medial superior olive (MSO) are responsible for encoding ILDs and ITDs, respectively. The lateral superior olive (LSO), responsible for processing ILDs, consists of bipolar neurons excited by ipsilateral stimulation and inhibited by contralateral stimulation (Boudreau and Tsuchitani 1968;Moore 2000;Moore and Caspary 1983). The net result of excitatory and inhibitory inputs to each LSO encodes the range of ILDs, which can thus be further processed and interpreted at higher centres of the auditory system.…”

Section: Physiology Of Binaural Hearingmentioning

confidence: 99%

Section: Physiology Of Binaural Hearingmentioning

confidence: 99%

“…Across different species, head diameters tend to correlate to MSO size (Moore 2000). This can perhaps be understood by the fact that as head sizes increase, so does the range of ITDs that are available for sound localization (Moore 2000). Therefore, the MSO in humans is nearly twice as large as that of the cat (Moore 2000), whereas the LSO is smaller in humans than cats.…”

Section: Physiology Of Binaural Hearingmentioning

confidence: 99%

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Lateralization of Interimplant Timing and Level Differences in Children Who Use Bilateral Cochlear Implants

et al. 2010

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Cochlear implants provide hearing to people who are deaf, by electrically stimulating the auditory nerve. Children with a single cochlear implant suffer deficiencies inherent to unilateral hearing, including inability to locate sounds. A second cochlear implant may improve sound localization, which normally requires interpretation of differences in sound intensity and time of arrival between two ears. Currently, it is unknown whether these cues are available to children who were provided with a second cochlear implant after a period of using one implant alone. We asked whether such children could interpret inter-implant level and timing cues. Results indicated that children using two cochlear implants detected level cues but had difficulty interpreting timing cues. Further, children rarely reported that sounds were perceived to come from the middle. Children receiving bilateral cochlear implants sequentially do not process bilateral auditory cues normally but can use inter-implant level cues to make judgments about where sound is coming from.ii

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Section: Physiology Of Binaural Hearingmentioning

confidence: 99%

Section: Physiology Of Binaural Hearingmentioning

confidence: 99%

Section: Physiology Of Binaural Hearingmentioning

confidence: 99%

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Lateralization of Interimplant Timing and Level Differences in Children Who Use Bilateral Cochlear Implants

et al. 2010

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“…ITD is very sensitive and can differentiate between angles of only 1(2° [2]. It is calculated in the MSO, the largest of the nuclei in the superior olivary complex (SOC); the human MSO contains between 10,000(11,000 cells [5], [6]. The pathways the sound signals take from each ear begin at the cochlea; exiting the cochlea they are encoded as spike trains and travel up the auditory nerve to the spherical bushy cells of the anteroventral cochlear nucleus (AVCN) which phase( lock the sound signal they are transmitting and finally enter the MSO as an excitatory innervation, see Fig.…”

Section: Introductionmentioning

confidence: 99%

“…1). The LSO is significantly smaller than the MSO with only about 2,500( 4,000 cells in the human LSO [6]. It appears as a folded sheet of excited(inhibited (EI) neurons; excited by innervation from spherical bushy cells of the ipsilateral AVCN but inhibited by innervation from the medial nucleus of the trapezoid body (MNTB) which receives input from globular bushy cells of the AVCN [8].…”

Section: Introductionmentioning

confidence: 99%

Spiking neuron models of the medial and lateral superior olive for sound localisation

Wall

McDaid

Maguire

et al. 2008

2008 IEEE International Joint Conference on Neural Networks (IEEE World Congress on Computational Intelligence)

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Auditory Processing in the Primate Brain

Hackett

Kaas

2003

Handbook of Psychology

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This work examined the mechanisms underlying auditory motion processing in the auditory cortex of awake monkeys using functional magnetic resonance imaging (fMRI). We tested to what extent auditory motion analysis can be explained by the linear combination of static spatial mechanisms, spectrotemporal processes, and their interaction. We found that the posterior auditory cortex, including A1 and the surrounding caudal belt and parabelt, is involved in auditory motion analysis. Static spatial and spectrotemporal processes were able to fully explain motion-induced activation in most parts of the auditory cortex, including A1, but not in circumscribed regions of the posterior belt and parabelt cortex. We show that in these regions motion-specific processes contribute to the activation, providing the first demonstration that auditory motion is not simply deduced from changes in static spatial location. These results demonstrate that parallel mechanisms for motion and static spatial analysis coexist within the auditory dorsal stream.

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Organization of the human superior olivary complex

Cited by 83 publications

References 73 publications

Lateralization of Interimplant Timing and Level Differences in Children Who Use Bilateral Cochlear Implants

Lateralization of Interimplant Timing and Level Differences in Children Who Use Bilateral Cochlear Implants

Spiking neuron models of the medial and lateral superior olive for sound localisation

Auditory Processing in the Primate Brain

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