The representation of visual salience in monkey parietal cortex.

@article{citeulike:90447, abstract = {When natural scenes are viewed, a multitude of objects that are stable in their environments are brought in and out of view by eye movements. The posterior parietal cortex is crucial for the analysis of space, visual attention and movement. Neurons in one of its subdivisions, the lateral intraparietal area (LIP), have visual responses to stimuli appearing abruptly at particular retinal locations (their receptive fields). We have tested the responses of LIP neurons to stimuli that entered their receptive field by saccades. Neurons had little or no response to stimuli brought into their receptive field by saccades, unless the stimuli were behaviourally significant. We established behavioural significance in two ways: either by making a stable stimulus task-relevant, or by taking advantage of the attentional attraction of an abruptly appearing stimulus. Our results show that under ordinary circumstances the entire visual world is only weakly represented in LIP. The visual representation in LIP is sparse, with only the most salient or behaviourally relevant objects being strongly represented.}, address = {Laboratory of Sensorimotor Research, National Eye Institute, Bethesda, Maryland 20892, USA.}, author = {Gottlieb, J. P. and Kusunoki, M. and Goldberg, M. E. }, citeulike-article-id = {90447}, doi = {10.1038/35135}, issn = {0028-0836}, journal = {Nature}, keywords = {lip, monkey, neurophysiology, \_note, salience}, month = {January}, number = {6666}, pages = {481--484}, posted-at = {2005-02-08 22:10:50}, priority = {0}, title = {The representation of visual salience in monkey parietal cortex.}, url = {http://dx.doi.org/10.1038/35135}, volume = {391}, year = {1998} }

TY - JOUR ID - citeulike:90447 L3 - citeulike-article-id:90447 TI - The representation of visual salience in monkey parietal cortex. JF - Nature VL - 391 IS - 6666 SP - 481 EP - 484 AD - Laboratory of Sensorimotor Research, National Eye Institute, Bethesda, Maryland 20892, USA. SN - 0028-0836 N2 - When natural scenes are viewed, a multitude of objects that are stable in their environments are brought in and out of view by eye movements. The posterior parietal cortex is crucial for the analysis of space, visual attention and movement. Neurons in one of its subdivisions, the lateral intraparietal area (LIP), have visual responses to stimuli appearing abruptly at particular retinal locations (their receptive fields). We have tested the responses of LIP neurons to stimuli that entered their receptive field by saccades. Neurons had little or no response to stimuli brought into their receptive field by saccades, unless the stimuli were behaviourally significant. We established behavioural significance in two ways: either by making a stable stimulus task-relevant, or by taking advantage of the attentional attraction of an abruptly appearing stimulus. Our results show that under ordinary circumstances the entire visual world is only weakly represented in LIP. The visual representation in LIP is sparse, with only the most salient or behaviourally relevant objects being strongly represented. KW - lip KW - monkey KW - neurophysiology KW - _note KW - salience AU - Gottlieb, JP AU - Kusunoki, M AU - Goldberg, ME PY - 1998/01/29/ UR - http://dx.doi.org/10.1038/35135 ER -