Show Reference: "Shared neural control of attentional shifts and eye movements"

Shared neural control of attentional shifts and eye movements. Nature, Vol. 384, No. 6604. (7 November 1996), pp. 74-77, doi:10.1038/384074a0 by Alexander A. Kustov, David L. Robinson
    abstract = {
                We are able to move visual attention away from the direction of gaze, fixating on one object while attending to something else at a different location, within the region of peripheral vision. It has been widely assumed that the attentional neural systems are separate from the motor systems, but some studies challenge this idea. It has now been suggested that the attentional system is part of the premotor processing in the brain. This model proposes that attentional processes evolved as part of the motor systems, with isolated attentional shifts representing an artificial separation of a natural linkage. Here we test how attentional shifts might be linked to the preparations for making saccadic eye movements. We studied the superior colliculus in monkeys as they shifted their attention during different tasks, and found that each attentional shift is associated with eye-movement preparation.
    address = {Section on Visual Behavior, Laboratory of Sensorimotor Research, National Eye Institute, National Institutes of Health, Bethesda, Maryland 20892, USA.},
    author = {Kustov, Alexander A. and Robinson, David L.},
    day = {7},
    doi = {10.1038/384074a0},
    issn = {0028-0836},
    journal = {Nature},
    month = nov,
    number = {6604},
    pages = {74--77},
    pmid = {8900281},
    posted-at = {2011-09-22 15:35:42},
    priority = {2},
    publisher = {Nature Publishing Group},
    title = {Shared neural control of attentional shifts and eye movements.},
    url = {},
    volume = {384},
    year = {1996}

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Saccades evoked by electric stimulation of the deep SC can be deviated towards the target of visual spatial attention. This is the case even if the task forbids a saccade towards the target of visual spatial attention.

Activation builds up in build-up neurons in the intermediate SC during the preparation of a saccade.

Activation build-up in build-up neurons is modulated by spatial attention.

Kustov's and Robinson's results support the hypothesis that there is a strong connection of action and attention.

There are voluntary (endogenous) and reflexive (exogenous) mechanisms of guiding selective attention.