Mahajan Yatin, McArthur Genevieve
ARC Centre of Excellence in Cognition and its Disorders, Macquarie University, Sydney 2109, Australia.
Brain Dev. 2012 Sep;34(8):655-66. doi: 10.1016/j.braindev.2011.10.009. Epub 2011 Nov 21.
Adolescence represents the period of transition from childhood to adulthood and is characterized by significant changes in brain structure and function. We studied changes in the functional visual processing in the brain across adolescence. Visual evoked potentials (VEPs) to three types of pattern reversal checkerboard stimuli were measured in 90 adolescents (10-18 years) and 10 adults. Across adolescence, the N75 and P100 VEP peaks decreased in size while the N135 peak increased slightly in size. The latency of VEP peaks showed no reliable change across adolescence. The results suggest that even very basic visual sensory function continues to develop throughout adolescence. The results indicate significant changes in visual parvocellular and magnocellular pathways across adolescence.
青春期是从童年到成年的过渡时期，其特点是大脑结构和功能发生重大变化。我们研究了整个青春期大脑中功能性视觉处理的变化。在90名青少年（10至18岁）和10名成年人中测量了对三种类型的模式反转棋盘格刺激的视觉诱发电位（VEP）。在整个青春期，N75和P100 VEP波峰的大小减小，而N135波峰的大小略有增加。VEP波峰的潜伏期在整个青春期没有显示出可靠的变化。结果表明，即使是非常基本的视觉感觉功能在整个青春期仍在继续发展。结果表明，在整个青春期，视觉小细胞和大细胞通路发生了显著变化。
