Society for Neuroscience | 137,576 followers on LinkedIn. The largest nonprofit membership organization of scientists and physicians who study the brain and the nervous system. | The Society for Neuroscience (SfN) is the world's largest organization of scientists and physicians devoted to advancing understanding of the brain and nervous system. A membership society, SfN has grown from 500 members in 1969 to nearly 35,000 in 80+ countries today. SfN promotes scientific exchange through its annual meeting, which attracts more than 30,000 attendees from around the globe, and its scientific publications, eNeuro and The Journal of Neuroscience.