Jamie Johnston
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Jamie Johnston PhD, |
EDUCATION
RESEARCH INTERESTS
AWARDS AND HONOURS
PROFESSIONAL AFFILIATIONS
PUBLICATIONS
POSITIONS
Assistant Professor, Faculty of Kinesiology
| 2003-2008 | Postdoctoral Fellow, Arizona State University |
| 2003-2009 | M.Sc. and Ph.D., The Pennsylvania State University |
| 1989-1993 | B.A., Amherst College |
RESEARCH INTERESTS
My research is in the area of human movement neurophysiology. Currently, my interest is in understanding the control of the hand. The hand has a sophisticated biomechanical and neural architecture that allows it to perform a variety of behaviors ranging from those requiring the use of multiple digits acting simultaneously (e.g., whole-hand grasping) to those requiring individuated movements in which some digits move more than others (e.g., tying your shoes, buttoning a button etc.). The question of particular interest to me is: how does the Central Nervous System control the many degrees of freedom of the hand (i.e., muscles and joints) to allow for such behavioral versatility? I use a variety of approaches to address this question including the examination of force coordination within and across digits as well as the analysis of electrocortical and muscular activity during force production and grasping tasks. Most recently, my research has focused on the role of tactile feedback in the coordination of forces across digits during multi-digit grasping in both healthy and clinical populations (e.g., Carpal Tunnel Syndrome).
| 2005- 2007 | NRSA Fellowship, NIAMS, NIH |
| 2000-2002 | NASA Space Grant Fellowship, The Pennsylvania State University |
| 1998-1999 | Graham Endowed Fellowship, The Pennsylvania State University |
PROFESSIONAL AFFILIATIONS
The Society for Neuroscience
The Society for the Neural Control of Movement
Johnston JA, Santello M. Multi-digit grasping and manipulation: Effect of Carpal Tunnel Syndrome on force coordination. Sensorimotor Control of Grasping: Physiology and Pathophysiology (Nowak DA, Hermsdorfer J, eds.; in press).
Johnston JA, Winges SA, Santello M. Neural control of hand muscles during prehension. Progress in Motor Control (Sternad D, ed; in press).
Winges SA, Johnston JA, Santello M. Muscle-pair specific distribution and grip type modulation of neural common input to extrinsic digit flexors. Journal of Neurophysiology, 2006, 96(3):1258-66.
Johnston JA, Winges SA, Santello M. Periodic modulation of motor unit activity in extrinsic hand muscles during multidigit grasping, Journal of Neurophysiology, 2005, 94:206-218.
Johnston JA, Winges SA, Santello M. Neuromuscular determinants of force coordination during multidigit grasping. Conf Proc IEEE Eng Med Biol Soc, 2004, 4645-4648.
Johnston JA, Rearick M, Slobounov S. Movement-related cortical potentials associated with progressive muscle fatigue in a grasping task. Clinical Neurophysiology, 2001,112:68-77.
Rearick MP, Johnston JA, Slobounov SM. Feedback-dependent modulation of isometric force control: an EEG study in visuomotor integration, Brain Research: Cognitive Brain Research, 2001, 12: 117-130.
To view a complete list of Jamie Johnston's publications please see his Curriculum Vitae (PDF format)