Show Reference: "Inactivation of Primate Superior Colliculus Biases Target Choice for Smooth Pursuit, Saccades, and Button Press Responses"

Inactivation of Primate Superior Colliculus Biases Target Choice for Smooth Pursuit, Saccades, and Button Press Responses Journal of Neurophysiology, Vol. 104, No. 3. (1 September 2010), pp. 1538-1548, doi:10.1152/jn.00406.2010 by Samuel U. Nummela, Richard J. Krauzlis
@article{nummela-and-krauzlis-2010,
    abstract = {In addition to its well-known role in the control of saccades, the primate superior colliculus ({SC}) has been implicated in the processes of target choice for overt orienting movements and for covert spatial attention. We focally inactivated the {SC}, by muscimol injection, while monkeys selected the target of a smooth pursuit, saccade, or button press response from two competing stimuli. The choice stimuli were placed so that one appeared within and the other appeared outside the affected visual field. {SC} inactivation biased the subject to choose stimuli out of the affected visual field for all three types of responses, although the effects on target choice were significantly smaller for button presses. Inactivation caused no changes in the selection of single stimuli within or out of the affected visual field, indicating the choice bias was not caused by deficits in response execution. The inactivation-induced bias for smooth pursuit and button press responses indicates {SC} activity is important for selecting the target, independent of any role in saccade preparation.},
    author = {Nummela, Samuel U. and Krauzlis, Richard J.},
    citeulike-article-id = {7843500},
    citeulike-linkout-0 = {http://dx.doi.org/10.1152/jn.00406.2010},
    citeulike-linkout-1 = {http://jn.physiology.org/cgi/content/abstract/104/3/1538},
    citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/20660420},
    citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=20660420},
    day = {1},
    doi = {10.1152/jn.00406.2010},
    issn = {1522-1598},
    journal = {Journal of Neurophysiology},
    keywords = {attention, biology, sc},
    month = sep,
    number = {3},
    pages = {1538--1548},
    pmid = {20660420},
    posted-at = {2015-01-13 16:44:59},
    priority = {2},
    title = {Inactivation of Primate Superior Colliculus Biases Target Choice for Smooth Pursuit, Saccades, and Button Press Responses},
    url = {http://dx.doi.org/10.1152/jn.00406.2010},
    volume = {104},
    year = {2010}
}

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The SC may play a major role in the selection of stimuli—as saccade targets or as reaching targets.