Hongrui Zhang, Yanjin Chen, Zhuo Wang, Tie Jun Cui, Philipp Del Hougne, Lianlin Li
Semantic regularization of electromagnetic inverse problems
Nature communications
study mainly investigated visual selectivity handmanipulationrelated neurons anterior intraparietal area area aip animal grasping fixating threedimensional 3d objects different geometric shapes sizes orientations studied activity 132 taskrelated neurons handmanipulation tasks light dark well object fixation seventyseven percent 101132 handmanipulationrelated neurons visually responsive showing either lesser activity manipulation dark light visualmotor neurons activation dark visualdominant neurons visually responsive neurons half n 66 responded objectfixation task objecttype among 55 tested shape selectivity objectfixation task many n 25 highly selective preferring one particular shape six different shapes presented ring cube cylinder cone sphere square plate 28 moderately selective objecttype neurons performed multidimensional scaling mds examine neurons encode similarity objects results suggest moderately selective neurons responded preferentially common geometric features shared similar objects flat round elongated etc moderately selective nonobjecttype visually responsive neurons respond object fixation found mds closely related handgrip object shape found similar selectivity handgrip motordominant neurons show visual response regard size objects 16 26 objecttype neurons tested selective size shape whereas 9 objecttype neurons selective shape size seven 12 nonobjecttype 88 motordominant neurons examined selective size almost also selective objects many handmanipulationrelated neurons preferred plate andor ring selective orientation objects 1720 results suggest visual responses objecttype neurons represent shape size andor orientation 3d objects whereas nonobjecttype neurons probably represent shape handgrip grip size handorientation activity motordominant neurons also part likely represent parameters hand movement suggests dorsal visual pathway concerned aspect form orientation andor size perception relevant visual control movements