Motivation
Bundgaard, M.H. and Roy, J.E., The Motivated Brain. Coppenhagen:CreateSpace, 2014.
Categorization and Cognitive Flexibility
Roy, J.E., Buschman, T.J., and Miller, E.K. Prefrontal cortex neurons reflect categorical decisions about ambiguous stimuli. J.Cogn. Neurosci, 26, 1283-1291, 2014.
Buschman, T.J., Siegel, M., Roy, J.E., and miller, E.K. Neural substrates of cognitive capacity limitations. PNAS, 108, 11252-11255, 2011.
Cromer, J., Roy, J.E., Buschman, T.J., and Miller, E.K. Comparison of Primate Prefrontal and Premotor Cortex Neuronal Activity During Visual Categorization. J. Cogn. Neurosci, 23, 3355-3365, 2011.
Roy, J.E., Riesenhuber, M., Poggio, T., and Miller, E.K. Prefrontal Cortex Activity during Flexible Categorization. J. Neurosci. 30, 8519-8528, 2010. 
Cromer, J., Roy, J.E., and Miller, E.K. Representation of Multiple, Independent Categories in the Primate Prefrontal Cortex. Neuron 66, 796-807, 2010.
Vestibular system
Cullen, K.E. and Roy, J.E. Signal Processing in the Vestibular System during Active versus Passive Head Movements. J. Neurophysiol. 91, 1919-1933, 2004.
Roy, J.E. and Cullen, K.E. Dissociating Self-Generated from Passively Applied Head Motion: Neural Mechanisms in the Vestibular Nuclei. J. Neurosci. 24, 2102-2111, 2004.
Roy, J.E. and Cullen, K.E. Brain Stem Pursuit Pathways: Dissociating Visual, Vestibular, and Proprioceptive Inputs during Combined Eye-Head Gaze Tracking. J.Neurophysiol. 90: 271-290, 2003.
Roy, J.E. and Cullen, K.E. Vestibuloocular Reflex Signal Modulation During Voluntary versus Passive Head Movements. J. Neurophysiol. 87, 2337-2357, 2002.
Roy, J.E. and Cullen, K.E. Selective Processing of Vestibular Reafference During Self-generated Head Motion. J. Neurosci. 21, 2131-2142, 2001.
Roy, J.E. and Cullen, K.E. A Neural Correlate for Vestibulo-Ocular Reflex Suppression During Voluntary Eye-Head Gaze Shifts. Nature Neurosci.1, 404-410, 1998.
