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Models of the Superior Olivary Complex

  • T. R. Jennings
  • H. S. Colburn
Chapter
Part of the Springer Handbook of Auditory Research book series (SHAR, volume 35)

Abstract

Sounds in the real world originate from specific sources, either alone or in combination, so that a natural description of a sound includes its location and other spatial properties. The extraction of these spatial properties by the mammalian auditory system involves early extraction of interaural difference information in the superior olivary complex (SOC), and the modeling of this processing by the neurons in the SOC is the topic of this chapter. This chapter’s focus on the SOC and on interaural difference information means that the monaural localization cues, notably the direction-dependent spectral filtering of the source waveform, are not addressed here, even though these cues also carry information about source location, especially its elevation. The spectral cues for location are discussed in  Chapter 5, describing models of the inferior colliculus (IC) in relation to psychophysical abilities.

Keywords

Interaural Time Difference Interaural Level Difference Lateral Superior Olive Superior Olivary Complex Medial Superior Olive 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abbreviations and Acronyms

AHP

Afterhyperpolarization

AVCN

Anteroventral cochlear nucleus

BD

Best delay

BP

Best phase

CD

Characteristic delay

CN

Cochlear nucleus

CP

Characteristic phase

EC

Equalization–cancellation

EE

Excitatory–excitatory

EI

Excitatory–inhibitory

EPSP

Excitatory postsynaptic potential

IC

Inferior colliculus

IE

Inhibitory–excitatory

ILD

Interaural level difference

IPD

Interaural phase difference

ISI

Interspike interval

ITD

Interaural time difference

JND

Just noticeable difference

LINF

Leaky integrate-and-fire

LNTB

Lateral nucleus of the trapezoid body

LSO

Lateral superior olive

MNTB

Medial nucleus of the trapezoid body

MSO

Medial superior olive

NA

Nucleus angularis

NL

Nucleus laminaris

NM

Nucleus magnocellularis

PSTH

Poststimulus time histogram

SOC

Superior olivary complex

SON

Superior olivary nucleus

VNLp

Ventral nucleus of the lateral lemniscus pars posterior

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Copyright information

© Springer-Verlag US 2010

Authors and Affiliations

  1. 1.Department of Biomedical EngineeringBoston UniversityBostonUSA

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