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dbr:Lateral_intraparietal_cortex

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Lateral intraparietal cortex

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The lateral intraparietal cortex (area LIP) is found in the intraparietal sulcus of the brain. This area is most likely involved in eye movement, as electrical stimulation evokes saccades (quick movements) of the eyes. It is also thought to contribute to working memory associated with guiding eye movement, examined using a delayed saccade task described below: Areas showing specificity for other modalities have been located.

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dbr:Lateral_intraparietal_cortex dbpedia-th:Lateral_Intraparietal_Cortex n19:fx7v n20:05znk7j yago-res:Lateral_intraparietal_cortex wd:Q17131119

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dbr:Supplementary_eye_field dbr:Washington_National_Primate_Research_Center dbr:Mickey_Goldberg wikipedia-en:Lateral_intraparietal_cortex n10: dbr:Lateral_Intraparietal dbr:Frontal_eye_fields dbr:Transsaccadic_memory dbr:Two-alternative_forced_choice dbr:Intraparietal_cortex dbr:Posterior_cingulate_cortex dbr:Neuroeconomics dbr:Visual_system n23: dbr:Eye_movement dbr:Area_LIP n24:this dbr:Intraparietal_sulcus

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n12:Activity100407535

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dbc:Memory_processes dbc:Memory dbc:Cerebrum

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22761510

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1119586656

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dbc:Memory dbc:Cerebrum dbr:Working_memory dbr:Two-alternative_forced_choice dbr:Intraparietal_sulcus dbr:Saccade dbr:Sensory_modality

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wikipedia-en:Lateral_intraparietal_cortex

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n15:0

dbo:abstract

The lateral intraparietal cortex (area LIP) is found in the intraparietal sulcus of the brain. This area is most likely involved in eye movement, as electrical stimulation evokes saccades (quick movements) of the eyes. It is also thought to contribute to working memory associated with guiding eye movement, examined using a delayed saccade task described below: 1. * A subject focuses on a fixation point at the center of a computer screen. 2. * A target (for instance a shape) is presented at a peripheral location on the screen. 3. * The target is removed and followed by a variable-length delay period. 4. * The initial focus point in the middle of the screen is removed. 5. * The subject's task is to make a saccade to the location of the target. Neurons in area LIP have been shown to start responding with the initial presentation of the stimulus. The neurons keep responding through the delay period until the saccadic eye movement starts and the animal soon focuses on the exact location of the previously shown target. There is also evidence for neurons firing for saccadic responses in the two-alternative forced choice task. The conclusion of this task experiment is that neurons in area LIP store information (the location of the target) useful for guiding the saccadic movement; that is, this area of the cortex shows modality-specific working memory. Areas showing specificity for other modalities have been located.

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2608

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