Neural Delays Shape Selectivity to Interaural Intensity Differences in the Lateral Superior Olive
نویسندگان
چکیده
منابع مشابه
Neural delays shape selectivity to interaural intensity differences in the lateral superior olive.
Neurons in the lateral superior olive (LSO) respond selectively to interaural intensity differences (IIDs), one of the chief cues used to localize sounds in space. LSO cells are innervated in a characteristic pattern: they receive an excitatory input from the ipsilateral ear and an inhibitory input from the contralateral ear. Consistent with this pattern, LSO cells generally are excited by soun...
متن کاملMechanisms underlying the sensitivity of neurons in the lateral superior olive to interaural intensity differences.
The initial processing of interaural intensity differences (IIDs), the major cue to the azimuthal location of high-frequency sounds in mammals, is carried out by neurons in the lateral superior olivary nucleus (LSO) that receive excitatory input from the ipsilateral ear and inhibitory input from the contralateral ear (IE neurons). The "latency" hypothesis asserts that it is the effects of inten...
متن کاملFrequency-dependent interaural delays in the medial superior olive: implications for interaural cochlear delays.
Neurons in the medial superior olive (MSO) are tuned to the interaural time difference (ITD) of sound arriving at the two ears. MSO neurons evoke a strongest response at their best delay (BD), at which the internal delay between bilateral inputs to MSO matches the external ITD. We performed extracellular recordings in the superior olivary complex of the anesthetized gerbil and found a majority ...
متن کاملInteraural phase and level difference sensitivity in low-frequency neurons in the lateral superior olive.
The lateral superior olive (LSO) is believed to encode differences in sound level at the two ears, a cue for azimuthal sound location. Most high-frequency-sensitive LSO neurons are binaural, receiving inputs from both ears. An inhibitory input from the contralateral ear, via the medial nucleus of the trapezoid body (MNTB), and excitatory input from the ipsilateral ear enable level differences t...
متن کاملInteraural level difference processing in the lateral superior olive and the inferior colliculus.
Interaural level differences (ILDs) provide salient cues for localizing high-frequency sounds in space, and populations of neurons that are sensitive to ILDs are found at almost every synaptic level from brain stem to cortex. These cells are predominantly excited by stimulation of one ear and predominantly inhibited by stimulation of the other ear, such that the magnitude of their response is d...
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ژورنال
عنوان ژورنال: The Journal of Neuroscience
سال: 1996
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.16-20-06554.1996