From: Joi Ito Subject Fwd: Pupil diameter as a measure of norepinephrine Sent Monday, July 29, 2013 5:06:14 PM To: Epstein Jeffrey <jeevacation&mail.com> Interesting. Begin forwarded message: From: "Ed Boyden Subject: Pupil diameter as a measure of norepinephrine Date: July 29, 2013 10:02:57 -0700 To: teacho Reply-To: e Is this of use? Sounds like an interesting modality of monitoring -- that pupil diameter could be a measure of overall attention-related processing... The effects of neural gain on attention and learning http://www.nature.com/neuroijournallv16/n8/fullinn 3428 html ...Wc found that measures of pupil diameter, which are thought to track levels of locus coeruleus norepinephrine activity and neural gain, were correlated with the degree to which learning was focused on stimulus dimensions that individual human participants were more predisposed to process... Ed Boyden, Ph. D. Leader, Synthetic Neurobiology Group Associate Professor and AT&T Chair, MIT Media Lab and McGovern Institute, Departments of Biological Engineering and Brain and Cognitive Sciences Co-Director, MIT Center for Neurobiological Engineering New York Stem Cell Foundation-Robertson Investigator and Paul Men Distinguished Investigator MIT, Room E15-421, 20 Ames St., Cambridge, MA 02139 Please use my alternative address, PO media.mit.edu to avoid email auto responder EFTA_R1_00055242 EFTA01754748