*Postdoctoral Position in Large-scale Neuronal Ensemble Recordings in Sensori-motor Cortices in Behaving Marmosets* A postdoctoral position is available starting in the fall of 2015 to characterize the spatio-temporal organization of sensori-motor cortical activity at multiple spatial scales associated with upper limb movements of behaving marmosets.This project involves high density multi-electrode array recordings as well as calcium fluorescence imaging from motor and somatosensory cortical sites in marmosets performing natural arm and hand movements.Facilities include a fully equipped electrophysiological laboratory with three 128-channel acquisition systems for multi-electrode recording and stimulation, calcium fluorescence imaging microscopes, and a camera-based, motion capture system.Expertise in multi-site, behavioral electrophysiology and/or calcium imaging is preferred.A strong mathematical, computational, or engineering background is also desirable.Applicants should send a CV and names and addresses of two or three references to Dr. Nicholas Hatsopoulos, Department of Organismal Biology, University of Chicago, 1027 East 57^th Street, Chicago, IL 60637 or by e-mail to nicho@uchicago.edu <mailto:nicho@uchicago.edu>. *Postdoctoral Position in Multi-Electrode Cortical Recording in Behaving Animals* A postdoctoral position is available starting in the winter of 2016 to investigate the neural basis of visuo-motor behavior.This project involves high density multi-electrode array recordings from motor and premotor cortical sites in monkeys performing complex arm and hand movements.Experiments seek to understand how large neuronal ensembles (single units and local field potentials) encode different aspects of these movements.These experiments also seek to develop decoding algorithms for possible application in brain-machine interfaces.Facilities include a fully equipped electrophysiological laboratory with three 128-channel acquisition systems, a two-link exoskeletal robot, and a camera-based, motion capture system. Expertise in multi-electrode, behavioral electrophysiology is preferred.A strong mathematical, computational, or engineering background is also desirable.Applicants should send a CV and names and addresses of two or three references to Dr. Nicholas Hatsopoulos, Department of Organismal Biology & Anatomy, University of Chicago, 1027 East 57^th Street, Chicago, IL 60637 or by e-mail to nicho@uchicago.edu <mailto:nicho@uchicago.edu>.