Doniger G M, Foxe J J, Murray M M, Higgins B A, Snodgrass J G, Schroeder C E, Javitt D C
New York University, NY, USA.
J Cogn Neurosci. 2000 Jul;12(4):615-21. doi: 10.1162/089892900562372.
Object recognition is achieved even in circumstances when only partial information is available to the observer. Perceptual closure processes are essential in enabling such recognitions to occur. We presented successively less fragmented images while recording high-density event-related potentials (ERPs), which permitted us to monitor brain activity during the perceptual closure processes leading up to object recognition. We reveal a bilateral ERP component (N(cl)) that tracks these processes (onsets approximately 230 msec, maximal at approximately 290 msec). Scalp-current density mapping of the N(cl) revealed bilateral occipito-temporal scalp foci, which are consistent with generators in the human ventral visual stream, and specifically the lateral-occipital or LO complex as defined by hemodynamic studies of object recognition.
即使在观察者只能获得部分信息的情况下，也能实现物体识别。知觉闭合过程对于使这种识别得以发生至关重要。我们在记录高密度事件相关电位（ERP）时，相继呈现碎片化程度越来越低的图像，这使我们能够监测在导致物体识别的知觉闭合过程中的大脑活动。我们发现了一个双侧ERP成分（N(cl)），它追踪这些过程（起始时间约230毫秒，最大值约在290毫秒）。N(cl)的头皮电流密度图谱显示双侧枕颞头皮焦点，这与人类腹侧视觉通路中的发生器一致，特别是与物体识别的血流动力学研究所定义的外侧枕叶或LO复合体一致。
