Show Reference: "Microstimulation of the superior colliculus focuses attention without moving the eyes"

Microstimulation of the superior colliculus focuses attention without moving the eyes Proceedings of the National Academy of Sciences of the United States of America, Vol. 102, No. 3. (18 January 2005), pp. 524-529, doi:10.1073/pnas.0408311101 by James R. Müller, Marios G. Philiastides, William T. Newsome
@article{mueller-et-al-2005,
    abstract = {The superior colliculus ({SC}) is part of a network of brain areas that directs saccadic eye movements, overtly shifting both gaze and attention from position to position, in space. Here, we seek direct evidence that the {SC} also contributes to the control of covert spatial attention, a process that focuses attention on a region of space different from the point of gaze. While requiring monkeys to keep their gaze fixed, we tested whether microstimulation of a specific location in the {SC} spatial map would enhance visual performance at the corresponding region of space, a diagnostic measure of covert attention. We find that microstimulation improves performance in a spatially selective manner: thresholds decrease at the location in visual space represented by the stimulated {SC} site, but not at a control location in the opposite hemifield. Our data provide direct evidence that the {SC} contributes to the control of covert spatial attention.},
    address = {Howard Hughes Medical Institute and Department of Neurobiology, Stanford University School of Medicine, and Department of Electrical Engineering, Stanford University, Stanford, CA 94305.},
    author = {M\"{u}ller, James R. and Philiastides, Marios G. and Newsome, William T.},
    day = {18},
    doi = {10.1073/pnas.0408311101},
    issn = {1091-6490},
    journal = {Proceedings of the National Academy of Sciences of the United States of America},
    month = jan,
    number = {3},
    pages = {524--529},
    pmcid = {PMC545556},
    pmid = {15601760},
    posted-at = {2013-10-25 16:06:43},
    priority = {2},
    publisher = {National Academy of Sciences},
    title = {Microstimulation of the superior colliculus focuses attention without moving the eyes},
    url = {http://dx.doi.org/10.1073/pnas.0408311101},
    volume = {102},
    year = {2005}
}

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It has been found that stimulating supposed motor neurons in the SC facilitates visual processing in the part of visual cortex whose receptive field is the same as that of the SC stimulated neurons.