The role of the lateral intraparietal area of the monkey in the generation of saccades and visuospatial attention.

@article{citeulike:403031, abstract = {The brain cannot monitor or react towards the entire world at a given time. Instead, using the process of attention, it selects objects in the world for further analysis. Neuronal activity in the monkey intraparietal area has the properties appropriate for a neuronal substrate of attention: instead of all objects being represented in the parietal cortex, only salient objects are. Such objects can be salient because of their physical properties (recently flashed objects or moving objects) or because they can be made important to the animal by virtue of a task. Although lateral intraparietal area (LIP) neurons respond through the delay period of a memory-guided saccade, they also respond in an enhanced manner to distractors flashed during the delay period of a memory-guided saccade being generated to a position outside the receptive field. This activity parallels the monkey's psychophysical attentional process: attention is ordinarily pinned at the goal of a memory-guided saccade, but it shifts briefly to the locus of a task-irrelevant distractor flashed briefly during the delay period and then returns to the goal. Although neurons in LIP have been implicated as being directly involved in the generation of saccadic eye movements, their activity does not predict where, when, or if a saccade will occur. The ensemble of activity in LIP, however, does accurately describe the locus of attention.}, address = {The Laboratory of Sensorimotor Research, National Eye Institute, Bethesda, Maryland 20892-4435, USA. meg@lsr.nei.nih.gov}, author = {Goldberg, M. E. and Bisley, J. and Powell, K. D. and Gottlieb, J. and Kusunoki, M. }, citeulike-article-id = {403031}, issn = {0077-8923}, journal = {Ann N Y Acad Sci}, keywords = {attention, lip, monkey, review, saccade}, month = {April}, pages = {205--215}, posted-at = {2005-11-21 14:26:13}, priority = {2}, title = {The role of the lateral intraparietal area of the monkey in the generation of saccades and visuospatial attention.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/11960805}, volume = {956}, year = {2002} }

TY - JOUR ID - citeulike:403031 L3 - citeulike-article-id:403031 TI - The role of the lateral intraparietal area of the monkey in the generation of saccades and visuospatial attention. JF - Ann N Y Acad Sci VL - 956 SP - 205 EP - 215 AD - The Laboratory of Sensorimotor Research, National Eye Institute, Bethesda, Maryland 20892-4435, USA. meg@lsr.nei.nih.gov SN - 0077-8923 N2 - The brain cannot monitor or react towards the entire world at a given time. Instead, using the process of attention, it selects objects in the world for further analysis. Neuronal activity in the monkey intraparietal area has the properties appropriate for a neuronal substrate of attention: instead of all objects being represented in the parietal cortex, only salient objects are. Such objects can be salient because of their physical properties (recently flashed objects or moving objects) or because they can be made important to the animal by virtue of a task. Although lateral intraparietal area (LIP) neurons respond through the delay period of a memory-guided saccade, they also respond in an enhanced manner to distractors flashed during the delay period of a memory-guided saccade being generated to a position outside the receptive field. This activity parallels the monkey's psychophysical attentional process: attention is ordinarily pinned at the goal of a memory-guided saccade, but it shifts briefly to the locus of a task-irrelevant distractor flashed briefly during the delay period and then returns to the goal. Although neurons in LIP have been implicated as being directly involved in the generation of saccadic eye movements, their activity does not predict where, when, or if a saccade will occur. The ensemble of activity in LIP, however, does accurately describe the locus of attention. KW - attention KW - lip KW - monkey KW - review KW - saccade AU - Goldberg, ME AU - Bisley, J AU - Powell, KD AU - Gottlieb, J AU - Kusunoki, M PY - 2002/04// UR - http://view.ncbi.nlm.nih.gov/pubmed/11960805 ER -