# Show Reference: "Multisensory Circuits"

Multisensory Circuits In Neural Circuit Development and Function in the Brain (2013), pp. 61-73, doi:10.1016/b978-0-12-397267-5.00144-8 by Andrew J. King
@incollection{king-2013,
author = {King, Andrew J.},
booktitle = {Neural Circuit Development and Function in the Brain},
doi = {10.1016/b978-0-12-397267-5.00144-8},
isbn = {9780123972675},
keywords = {biology, multisensory-integration},
pages = {61--73},
posted-at = {2013-05-14 14:46:15},
priority = {2},
title = {Multisensory Circuits},
url = {http://dx.doi.org/10.1016/b978-0-12-397267-5.00144-8},
year = {2013}
}


The topographic map of visual space in the sSC is retinotopic.

The uni-sensory, multi-sensory and motor maps of the superior colliculus are in spatial register.

Neural responses in the sc to spatially and temporally coincident cross-sensory stimuli can be much stronger than responses to uni-sensory stimuli.

In fact, they can be much greater than the sum of the responses to either stimulus alone.

Neural responses (in multi-sensory neurons) in the sc to spatially disparate cross-sensory stimuli is usually weaker than responses to uni-sensory stimuli.

The superior colliculus receives input from various sensory brain areas. According to King, these inputs are uni-sensory, as far as we know.

According to King, the principal function of the SC is initiating gaze shifts.

Alais and Burr found in an audio-visual localization experiment that the ventriloquism effect can be interpreted by a simple cue weighting model of human multi-sensory integration:

Their subjects weighted visual and auditory cues depending on their reliability. The weights they used were consistent with MLE. In most situations, visual cues are much more reliable for localization than are auditory cues. Therefore, a visual cue is given so much greater weight that it captures the auditory cue.