Dr. Johnson is an Associate Professor appointed to the School of Health Studies, and is the Chair of the Graduate Program in Health and Rehabilitation Sciences. He maintains research interests in a variety of areas, but is predominantly interested in neural efficiency (particularly with regards to the link between cognition and movement), Parkinson’s disease, behavior genetics, and children’s mental health.
Neural Efficiency
The Effects of Word Length, Articulation, Oral-motor Movement, and Lexicality on Gait: A Pilot Study (with K. L. Davie, Janis E. Oram Cardy, J. D. Holmes, M. Gagnon, A. Hyde, and M. E. Jenkins), Gait & Posture (2012)
The Contribution of Processing Impairments to SLI: Insights from Attention-deficit/Hyperactivity Disorder (with Janis E. Oram Cardy, Rosemary Tannock, and Carla J. Johnson), Journal of Communication Disorders (2010)
Dual-task Interference: The Effects of Verbal Cognitive Tasks on Upright Postural Stability in Parkinson's Disease (with J. D. Holmes, M. E. Jenkins, S. G. Adams, and S. J. Spaulding), Parkinson's Disease (2010)
Dual Task Performance in a Healthy Young Adult Population: Results from a Symmetric Manipulation of Task Complexity and Articulation (with Albert Armieri, Jeffrey D. Holmes, Sandi J. Spaulding, and Mary E. Jenkins), Gait & Posture (2009)
Metacognition and Metamovement: Links between Cognition and Motor Function in Parkinson's Disease (with Albert Armieri, Jeffrey D. Holmes, A. L. Grau, Mary E. Jenkins, and Sandi J. Spaulding), Metacognition: New Research Developments (2009)
Parkinson’s Disease
Identifying and Managing Caregiver Burden Among Spouses of Individuals with Parkinson's Disease (with Kaitlyn Roland and Mary E. Jenkins), Journal of Current Clinical Care (2011)
Identification and Management of Impulse Control Disorders Among Individuals with Parkinson’s Disease (with H. Christopher Hyson and Kaitlyn Roland), Journal of Current Clinical Care (2011)
Predictive Validity of the UPDRS Postural Stability Score and the Functional Reach Test, When Compared with Ecologically Valid Reaching Tasks (with M. E. Jenkins, J. D. Holmes, F. F. Stephenson, and S. J. Spaulding), Parkinsonism & Related Disorders (2010)
An Exploration of the Burden Experienced by Spousal Caregivers of Individuals with Parkinson's Disease (with Kaitlyn P. Roland and Mary E. Jenkins), Movement Disorders (2010)
Plantar Cutaneous Sensory Stimulation Improves Single-limb Support Time, and EMG Activation Patterns among Individuals with Parkinson's Disease (with M. E. Jenkins, Q. J. Almeida, S. J. Spaulding, R. B. van Oostveen, J. D. Holmes, and S. D. Perry), Parkinsonism & Related Disorders (2009)
Behaviour Genetics
The General Factor of Personality: A Critical Test (with Livia Veselka, Caroline Just, Kerry L. Jang, and Philip A. Vernon), Personality and Individual Differences (2012)
The Relationship Between Personality and Self-Report Abilities (with Julie Aitken Schermer, Philip A. Vernon, and Kerry L. Jang), Journal of Individual Differences (2011)