INFOGRAPHIC 2.1
![image](licht1e_fig02_Info1.jpg)
Credits: Southern Illinois University/Science Source; Living Art Enterprises, LLC/Science Source; Science Source; National Institute on Aging/Science Source; ISM/Phototake; AJPhoto/Science Source; istockphoto/thinkstock; Science photo library; Laboratory of Neuro Imaging at UCLA and Martinos Center for Biomedical Imaging at MGH, Consortium of the Human ConnectomeProject