Show Reference: "A model of the neural mechanisms underlying multisensory integration in the superior colliculus"

A model of the neural mechanisms underlying multisensory integration in the superior colliculus Perception, Vol. 36, No. 10. (2007), pp. 1431-1443, doi:10.1068/p5842 by Benjamin A. Rowland, Terrence R. Stanford, Barry E. Stein
@article{rowland-et-al-2007,
    abstract = {Much of the information about multisensory integration is derived from studies of the cat superior colliculus ({SC}), a midbrain structure involved in orientation behaviors. This integration is apparent in the enhanced responses of {SC} neurons to cross-modal stimuli, responses that exceed those to any of the modality-specific component stimuli. The simplest model of multisensory integration is one in which the {SC} neuron simply sums its various sensory inputs. However, a number of empirical findings reveal the inadequacy of such a model; for example, the finding that deactivation of cortico-collicular inputs eliminates the enhanced response to a cross-modal stimulus without eliminating responses to the modality-specific component stimuli. These and other empirical findings inform a computational model that accounts for all of the most fundamental aspects of {SC} multisensory integration. The model is presented in two forms: an algebraic form that conveys the essential insights, and a compartmental form that represents the neuronal computations in a more biologically realistic way.},
    author = {Rowland, Benjamin A. and Stanford, Terrence R. and Stein, Barry E.},
    doi = {10.1068/p5842},
    journal = {Perception},
    number = {10},
    pages = {1431--1443},
    posted-at = {2011-07-21 11:56:45},
    priority = {2},
    publisher = {Pion Ltd},
    title = {A model of the neural mechanisms underlying multisensory integration in the superior colliculus},
    url = {http://dx.doi.org/10.1068/p5842},
    volume = {36},
    year = {2007}
}

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Deactivation of AES and rLS leads to a complete lack of cross-modal enhancement while leaving intact the ability of multi-sensory SC neurons to respond to uni-sensory input and even to add input from different sensory modalities.

Rowland et al. derive a model of cortico-collicular multi-sensory integration from findings concerning the influence of deactivation or ablesion of cortical regions anterior ectosylvian cortex (AES) and rostral lateral suprasylvian cortex.

Rowland et al. derive a model of cortico-collicular multi-sensory integration from findings concerning the influence of deactivation or ablesion of cortical regions anterior ectosylvian cortex (AES) and rostral lateral suprasylvian cortex.

It is a single-neuron model.