Show Reference: "Space-Mapped auditory projections from the inferior colliculus to the optic tectum in the barn owl (Tyto alba)"

Space-Mapped auditory projections from the inferior colliculus to the optic tectum in the barn owl (Tyto alba) Journal of Comparative Neurology, Vol. 218, No. 2. (1983), pp. 187-196, doi:10.1002/cne.902180206 by Eric I. Knudsen, Phyllis F. Knudsen
@article{knudsen-and-knudsen-1983,
    abstract = {The optic tectum of the owl contains a topographic representation of auditory space. We have investigated the source of this space-mapped auditory activity by using retrograde tracing with horseradish peroxidase. The major source of auditory input to the optic tectum is the ipsilateral external nucleus of the inferior colliculus ({ICX}), which is known to contain a map of auditory space also. Additional minor projections originate in the superficial nucleus of the inferior colliculus and the nucleus isthmi parvocellularis. There is no apparent projection to the optic tectum from the contralateral {ICX} or any other brainstem auditory nucleus. The projection from the {ICX} to the optic tectum is point-to-point: rostral {ICX} projects to rostral tectum, caudal {ICX} to caudal tectum, dorsal {ICX} to dorsomedial tectum, and ventral {ICX} to ventral tectum. Thus, the space-mapped organization that exists in the {ICX} is passed on by topographic projections to the optic tectum.},
    author = {Knudsen, Eric I. and Knudsen, Phyllis F.},
    doi = {10.1002/cne.902180206},
    journal = {Journal of Comparative Neurology},
    keywords = {auditory, biology, ic, sc-input},
    number = {2},
    pages = {187--196},
    posted-at = {2012-01-10 14:14:09},
    priority = {2},
    publisher = {Alan R. Liss, Inc.},
    title = {{Space-Mapped} auditory projections from the inferior colliculus to the optic tectum in the barn owl (Tyto alba)},
    url = {http://dx.doi.org/10.1002/cne.902180206},
    volume = {218},
    year = {1983}
}

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The external nucleus of the inferior colliculus (ICx) used to be called the space-mapped region of the nucleus mesencephalicus lateralis pars dorsalis (MLD),

ICx projects to intermediate and deep layers of SC.