Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Posterior Structures involved in Saccades and Reaching Structure in Monkey V3a V6a / PRR LIP AIP MIP / PRR ? V7? MT/MST Brodman’s area 5 S1 (B1,2,3) Equivalent Human Structure Likely IPTO Medial POJ/SPOC mIPS (mid-posterior IPS), possibly lateral extending into inferior parietal. aIPS: Junction between anterior IPS and inferior parietal sulcus mIPS (mid-posterior IPS), possible more medial in superior parietal. Angular Gyrus MT+, posterior temporal occipital fossa Same Putative Function Saccade Goals Reach Goals Saccades: attention/ intention / integration Grasping Calculation of Reach Vector in Visual Coords, Online monitoring of reach feedback signals Knowledge of left vs. Right, Calculation of Reach Vector in Motor Coords. Manual Pointing/Tool Use Visuospatial Functions Visual Motion Processing Multi-sensory Integration Primary Somatosensory Frontal Structures involved in Saccades and Reaching Structure in Monkey Rostral Cingulate motor area (CMAr) Caudal Cingulate motor area - ventral bank (CMAv) Caudal Cingulate motor area - dorsal bank (CMAd) BA8: Frontal Eye Fields Supplementary Eye Fields Equivalent Human Structure Rostral Cingulate zone (RCZ) anterior (RCZa) Rostral Cingulate zone posterior (RCZp) Caudal cingulated zone (CCZ) Overlaps Dorsal Premotor; Intersection of the superior precentral sulcus with the superior frontal sulcus Medial wall of frontal lobe Paracentral sulcus (controversy on location) -border of the SMA and the Putative Function Conflict monitoring Selection for action movement execution (eg finger movements) Saccades & gaze shifts: Internal / Voluntary, Pursuit Saccades and eye-head Gaze Shifts: arbitrary rules & transformations Cingulate Eye Fields Dorsal Premotor Cortex pre-SMA Posterior part of Anterior cingulate cortex (ACC) Controversy on location) Dorsal-Anterior to M1. Lateral Premotor Cortex Pre-Supplementary Motor Area (Rostral portion of area 6) Pre-Supplementary Motor Area Supplementary Motor Area (Caudal area 6a) Supplementary Motor Area Primary Motor Cortex (B4) Dorsal part of precentral gyrus, anterior of central sulcus BA 45 and 46 Dorso-lateral Prefrontal Cortex Eye Movement Control Visual Control of Reach Visual and proprioseptive representations of arm position Representations triggered by attended sensory events processing or maintenance of relevant sensory information -a sub-region of prefrontal cortex - somatotopically arranged map of the body - e.g., rostral orofacial (border with pre-SMA), hindlimb caudal sites Reach Implementation Spatial Memory and Executive Function