[ skip to content ]
- Steven Morrison
- Professor
- School of Physical Therapy
- 3118 Health Sciences Bldg
-
Norfolk,
VA
23529
- 757-683-4519
- smorriso@odu.edu
-
Education
- Pennsylvania State University,
1997
- Major: Motor Control
- Degree: Ph. D.
- Otago University,
1991
- Major: Motor Control and Biomechanics
- Degree: Masters (M.Ph.Ed)
- Otago University,
1988
- Major: Physiology
- Degree: B.S.
- Otago University,
1988
- Major: Motor Control, Biomechanics, Exercise Physiology
- Degree: B.Ph.Ed
-
Articles
- Thomas, K., Van Lunen, B. L., and Morrison, S. (2013). European Journal of Applied Physiology, 113, (pp. 497-508).
- Morrison, S., Sosnoff, J., Hefferman, K. S., Jae, S. Y., and Fernhill, B. (2013). Aging, Hypertension and Physiological Tremor: The Contribution of the Cardioballistic Impulse to Tremorgenesis in Older Adults.. Journal of the Neurological Sciences, 326, (pp. 68-74).
- Sosnoff, J. J., Balantrapu, S., Pilutti, L. A., Sandroff, B. M., Morrison, S., and Motl, R. W. (2013). Cognitive Processing Speed is related to Fall Frequency in Older Adults with Multiple Sclerosis.. Archives of Physical Medicine and Rehabilitation
- Morrison, S., Sosnoff, J. J., Sandroff, B. M., Pula, J. H., and Motl, R. W. (2013). The dynamics of finger tremor in multiple sclerosis is affected by whole body position.. Journal of the Neurological Sciences, 324, (pp. 84-89).
- Morrison, S., Cortes, N., Newell, K. M., Silburn, P. A., and Kerr, G. K. (2013). Variability, regularity and coupling measures distinguish PD tremor from voluntary 5 Hz tremor.. Neuroscience Letters, 534, (pp. 69-74).
- Morrison, S., and Newell, K. M. (2012). Aging, Neuromuscular decline and the Change in Physiological and Behavioral Complexity of Upper-Limb Movement Dynamics. Journal of Aging Research, 2012,
- Sosnoff, J. J., Sandroff, B. M., Pula, J. H., Morrison, S., and Motl, R. W. (2012). Falls and Physical Activity in Persons with Multiple Sclerosis.. Multiple Sclerosis International, 2012,
- Morrison, S., Tucker, M., and Barrett, R. S. (2012). From Tremor to Movement: Differences in Variability and Coupling during Bilateral Finger Actions.. Motor Control, 16, (pp. 31-49).
- Cortes, N., Morrison, S., Onate, J., and Van Lunen, B. L. (2012). Landing Technique Affects Knee Loading and Position During Athletic Tasks. Journal of Science and Medicine in Sport, 15 (2), (pp. 175-181).
- Morrison, S., Colberg-Ochs, S. R., Parson, H. K., and Vinik, A. I. (2012). Relation between Risk of Falling and Postural Sway Complexity in Diabetes. Gait and Posture, 35, (pp. 662-668).
- Sosnoff, J. J., Socie, M. J., Sandroff, B. M., Pula, J. H., Weikert, M., Morrison, S., and Motl, R. W. (2011). Mobility, Balance and Falls in Persons with Multiple Sclerosis. PLoS ONE, 6 (11),
- Morrison, S., Hong, S. L., and Newell, K. M. (2011). Similarity in the Dynamics of Contralateral Motor Overflow through Increasing Frequency of Movement in a Single Limb. Experimental Brain Research, 213, (pp. 403-414).
- Tucker, M., Kavanagh, J., Morrison, S., and Barrett, R. (2010). Differences in rapid initiation and termination of voluntary postural sway associated with ageing and falls-risk. Journal of Motor Behavior, 42 (5), (pp. 277-287).
- Keogh, J., Morrison, S., and Barrett, R. S. (2010). Strength- and coordination-training are both effective in reducing the postural tremor amplitude of older adults. Journal of Aging and Physical Activity, 18 (1), (pp. 43-60).
- Morrison, S., and Sosnoff, J. (2010). The Impact of Localized Fatigue on Contralateral Tremor and Muscle Activity is exacerbated by Standing Posture. Journal of Electromyography and Kinesiology, 20 (6), (pp. 1211-1218).
- Tucker, M., Kavanagh, J., Morrison, S., and Barrett, R. (2010). What are the relations between voluntary postural sway measures and falls-history status in community-dwelling older adults?. Archives of Physical Medicine and Rehabilitation, 91 (5), (pp. 750-758).
- Morrison, S., Colberg-Ochs, S. R., Mariano, M., Henri, P. K., and Vinik, A. I. (2010). Balance training reduces falls risk in older individuals with type 2 diabetes. Diabetes Care, 33 (4), (pp. 748-750).
- Walker, M., Ringleb, S. I., Maihafer, G., Walker, R., Crouch, J. R., Van Lunen, B. L., and Morrison, S. (2010). Virtual reality-enhanced partial body weight-supported treadmill training post stroke: feasibility and effectiveness in 6
subjects. Arch Phys Med Rehabil, 91, (pp. 115-122).
- Morrison, S., and Sosnoff, J. (2009). Age-related Changes in the Adaptability of Neuromuscular Output. Journal of Motor Behavior, 41, (pp. 274-283).
- Morrison, S., Hing, L. S., and Newell, K. M. (2009). Upper frequency limits of bilateral coordination Patterns.. Neuroscience Letters, 454, (pp. 233-238).
- Tucker, M., Kavanagh, J., Morrison, S., and Barrett, R. S. (2009). Voluntary sway and rapid orthogonal transitions of voluntary sway in young adults, and low and high fall-risk older adults.. Clinical Biomechanics, 24 (8), (pp. 597-605).
- Tucker, M., Kavanagh, J., Barrett, R. S., and Morrison, S. (2008). Age-related changes in upper body coordination and reaction time during voluntary postural sway. Human Movement Science, 27, (pp. 728-737).
- Morrison, S., Kerr, G., and Silburn (2008). Bilateral tremor relations in Parkinson's disease: Effects of mechanical coupling and medication. Parkinsonism and Related Disorders, 14, (pp. 298-308).
- Morrison, S., Kerr, G., and Silburn, P. (2008). Coupling between limb tremor and postural sway in Parkinson's disease., 23 (3), (pp. 386-394).
- Morrison, S., Kerr, G., Newell, K. M., and Silburn (2008). Differential Time- and Frequency- Dependent Structure of Postural Sway and Finger tremor in Parkinson's disease. Neuroscience letters, 443, (pp. 123-128).
- Peterson, A., Morrison, S., and Barrett, R. S. (2008). Enhanced postural stability following driver-training in associated with positive effects on vehicle kinematics during cornering. Human Factors, 50 (1), (pp. 159-172).
- Barrett, R. S., Noordegraff, M. V., and Morrison, S. (2008). Gender differences in the variablility of lower extremity linematics during voluntary postural sway. Journal of Motor Behavior, 40 (1), (pp. 62-70).
- Mills, P. M., Morrison, S., and Barrett, R. S. (2008). Toe clearance variability during walking in young and elderly men. Gait and Posture, 28 (1), (pp. 101-107).
- Mills, P. M., Morrison, S., and Barrett, R. S. (2007). Agreement between foot-switch and ground reaction force techniques for identifying gait events; inter-session repeatability
and the effect of walking speed. Gait and Posture, 26, (pp. 323-6).
- Morrison, S., Hong, L., and Newell, K. M. (2007). Inverse relations in the patterns of muscle and center of pressure dynamics during standing still and movement postures. Experimental Brain Research, 181, (pp. 347-358).
- Morrison, S., Mills, P. M., Barrett, R. S., and Lloyd, D. G. (2007). Repeatability of an electromagnetic tracking system protocol to obtain three-dimensional gait kinematics during treadmill
locomotion. Journal of Biomechanics, 40, (pp. 1504-1511).
- Keogh, J., Morrison, S., and Barrett, R. S. (2007). Strength training improves the tri-digit finger pinch force control of older adults. Archives of Physical Medicine and Rehabilitation, 88, (pp. 1055-1063).
- Keogh, J., Morrison, S., and Barrett, r. S. (2006). Age-related differences in the coordinated of digital forces during tri-digital finger-pinching. European Journal of Applied Physiology, 97, (pp. 76-88).
- Morrison, S., Mills, P. M., and Barrett, R. S. (2006). Differences in mulitple segment tremor dynamics between young and elderly. Journal of Gerontology: Medical Sciences, 61A, (pp. 982-990).
- Peterson, A., Barrett, r. S., and Morrison, S. (2006). Driver training and braking performance in vehicles with anti-lock braking systems. Safety Science, 44 (10), (pp. 905-917).
- Kavanagh, J. J., Morrison, S., and Barrett, R. S. (2006). Lumbar and cervical erector spinae fatigue elicits compensatory postural responses to assist in maintaining head stability
during walking. Journal of Applied Physiology, 101, (pp. 1118-1126).
- Kavanagh, J. J., Morrison, S., James, D. A., and Barrett, R. S. (2006). Reliability of Segmental accelerations measured using a new wireless gait analysis system. Journal of Biomechanics, 39 (15), (pp. 2863-2872).
- Kavanagh, J. J., Barrett, R. S., and Morrison, S. (2006). The role of the neck and trunk in facilitating head stability during walking. Experimental Brain Research, 172, (pp. 454-463).
- Kavanagh, J., Barrett, R., and Morrison, S. (2005). Age-related differences in head and trunk coordination during walking. Human Movement Science, 24 (4), (pp. 574-587).
- Kavanagh, J. J., Morrison, S., and Barrett, R. S. (2005). Coordination of head and trunk accelerations during walking. European Journal of Applied Physiology, 94, (pp. 468-477).
- Morrison, S., Kavanagh, J. J., Obst, S. J., Irwin, J., and Haseler, L. J. (2005). The effects of unlateral muscle fatigue on bilateral physiology tremor. Experimental Brain Research, 167, (pp. 609-621).
- Keogh, J., Morrison, S., and Barrett, R. (2004). Augumental visual feedback alters finger tremor during postural pointing. Experimental Brain Research, 159 (4), (pp. 467-477).
- Morrison, S., Kavanagh, J. J., and Barrett, R. (2004). Upper body accelerations during walking in healthy young and elderly men. Gait and Posture, 20 (3), (pp. 291-298).
- Morrison, S., and Keogh, J. (2001). Changes in the dynamics of tremor during goal-directed pointing. Human Movement Science, 20, (pp. 675-693).
- Morrison, S., Newell, K. M., and Challis, S. (2000). Dimensional constraints on limb movements. Human Movement Science, 19, (pp. 175-201).
- Morrison, S., and Newell, K. M. (2000). Limb Stiffness and postural tremor in the arm. Motor Control, 4, (pp. 293-315).
- Morrison, S., Newell, K. M., and Deutsch, K. M. (2000). On learning to move randomly. Journal of Motor Behavior, 32, (pp. 314-320).
- Morrison, S., and Newell, K. M. (2000). Postural and resting tremor in the upper limb. Clinical Neurophysiology, 111, (pp. 651-663).
- Morrison, S., and Newell, K. M. (1999). Bilateral organization of physiology tremor in the upper limb. European Journal of Applied Physiology and Occupational Physiology, 80 (564-574),
- Morrison, S., and Anson, J. G. (1999). Natural goal-directed movements and the triphasic EMG. Motor Control, 3, (pp. 346-371).
- Morrison, S., and Newell, K. M. (1998). Inter-limb coupling as a function of isometric force output. Journal of Motor Behavior, 10, (pp. 323-342).
- Morrison, S., and Newell, K. M. (1996). Frames of reference and normal movement. Behavioral and Brain Sciences, 19, (pp. 83-84).
- Morrison, S., and Newell, K. (1996). Inter- and intra-limb coordination in arm tremor. Experimental Brain Research, 110, (pp. 455-464).
-
Presentations
- Is the Sky Falling? Assessing Balance and Falls in Older Adults
- Sponsoring Organization: Virginia Center on Aging.
- Location: Richmond
- Date: 2013
- Authors/Presenters:
Morrison, S. Presenter & Author
- Balancing Act: Practical Assessment and Management of Falls
- Conference Name: Virginia Geriatrics Society
- Sponsoring Organization: Virginia Geriatrics Society
- Location: Richmond, Virginia
- Date: 2013
- Authors/Presenters:
Morrison, S. Presenter & Author
- The effects of postural position on physiological tremor in multiple sclerosis
- Conference Name: Society for Neuroscience
- Sponsoring Organization: Society for Neuroscience
- Location: New Orleans
- Date: 2012
- Authors/Presenters:
Morrison, S. Presenter & Author
Sosnoff, J. J. Author Only
Sandroff, B. M. Author Only
Pula, J. H. Author Only
Motl, R. W. Author Only
- Changes in movement complexity are associated with increased postural instability in Parkinson’s disease
- Conference Name: Australian Neuroscience Society
- Sponsoring Organization: Australian Neuroscience Society
- Location: Gold Coast, Australia
- Date: 2012
- Authors/Presenters:
Kerr, G. K. Presenter & Author
Morrison, S. Author Only
- Changes in Variability with Aging and Disease: Implications for control of movement.
- Sponsoring Organization: University of Otago
- Location: Dunedin, New Zealand
- Date: 2012
- Authors/Presenters:
Morrison, S. Presenter & Author
- Loss of Motor Function in the Older Adult: The Relation between Aging, Disease, and Physiological Complexity
- Sponsoring Organization: Otago University
- Location: Dunedin, New Zealand
- Date: 2012
- Authors/Presenters:
Morrison, S. Presenter & Author
- Postural Control, Falls and Falls Risk Assessment: The impact of Age, Diabetes and Parkinson’s Disease
- Conference Name: University of Illinois
- Sponsoring Organization: University of Illinois
- Location: Champaign-Urbana, Illinois
- Date: 2010
- Authors/Presenters:
Morrison, S.
- Methods to Reduce the Risk of Falling
- Conference Name: EVMS
- Sponsoring Organization: EVMS
- Location: Virginia Beach
- Date: 2010
- Authors/Presenters:
Morrison, S.
- Changes in movement coupling and complexity in aging and neurological disease
- Conference Name: Society for Neuroscience
- Sponsoring Organization: Society for Neuroscience
- Location: Chicago, Illinois
- Date: 2009
- Authors/Presenters:
Kerr, G. Presenter & Author
Morrison, S.
Newell, K. M.
Silburn, P.
- Dynamics of Balance and Falls Risk in Type 2 Diabetes
- Conference Name: Society for Neuroscience meeting
- Sponsoring Organization: Society for Neuroscience meeting
- Location: Chicago, Illinois
- Date: 2009
- Authors/Presenters:
Morrison, S. Presenter & Author
Colberg-Ochs, S. R.
Parson, H.
Vinik, A. I.
- The electrophysiological confirmation of simple bent & locked knee manoeuvres for clinical diagnosis and management of orthostatic
tremor
- Conference Name: Movement Disorders Society
- Sponsoring Organization: Movement Disorders Society
- Location: Paris, France
- Date: 2009
- Authors/Presenters:
Wilcox, R. Presenter & Author
Osullivan, J.
Silburn, P.
Cole, M.
Morrison, S.
Kerr, G.
- Aging-related changes in the Adaptability of Neuomusclar Output: An Examination of Postural Tremor.
- Conference Name:
- Location: Indianapolis, Indiana
- Date: 2008
- Authors/Presenters:
Morrison, S.
Sosnoff, J. J.
- Physiological Transfer Effects after 16 Weeks of Resistance and Aerobic Training in Men 70-80yrs.
- Conference Name:
- Location: Indianapolis, Indiana
- Date: 2008
- Authors/Presenters:
Morrison, S.
- Age-related differences in upper body coordination and dynamic reaction time during postural movements
- Conference Name:
- Location: Fremantle, Western Austrailia, Austrailia
- Date: 2007
- Authors/Presenters:
Morrison, S.
Tucker, M.
Kavanagh, J.
- Conference Name:
- Location: Fremantle , Western Austrailia, Austrailia
- Date: 2007
- Authors/Presenters:
Morrison, S.
Hong, L.
Newell, K. M.
- Does tremor contribute to postural instability in Parkinson's disease?
- Conference Name:
- Location: Darwin, North Territories, Austrailia
- Date: 2007
- Authors/Presenters:
Morrison, S.
Kerr, G.
Silburn
- Age-related changes in upper body coordination and reaction time during voluntary postural sway
- Conference Name:
- Location: Brisbane, Austrailia
- Date: 2006
- Authors/Presenters:
Morrison, S.
Tucker, M.
Barrett, R. S.
Kavanagh, J.
- Age effects on postural reaction time and coordination during voluntary sway movements
- Conference Name:
- Location: Queensland, Austrailia
- Date: 2006
- Authors/Presenters:
Morrison, S.
Tucker, M.
Kavanagh, J.
- Changes in Multiple Segment Tremor Dynamics in Parkinson's diseas as a Function of Posture
- Conference Name:
- Location: Washignton DC.
- Date: 2005
- Authors/Presenters:
Morrison, S.
Kerr, G.
Silburn
- Tremor-Sway Interactions in Young, Elderly and Parkinson's diseas Patients
- Conference Name:
- Location: Washingotn, DC
- Date: 2005
- Authors/Presenters:
Morrison, S.
Kerr, G.
Silburn
- Strength training improves the tri-digit finger-pinch force control of older adults
- Conference Name:
- Location: Sydney, Australia
- Date: 2005
- Authors/Presenters:
Morrison, S.
Keogh, J.
Barrett, R. S.
- Postural strategies adopted by the older person durgin gait initiation
- Conference Name:
- Location: Gold Coast, Australia
- Date: 2005
- Authors/Presenters:
Morrison, S.
Kavanagh, J. J.
Barrett, R. S.
- Changes in Resting and Postural Tremor in Parkinson's disease as a Function of Postural Position
- Conference Name:
- Location: Sydney, Australia
- Date: 2005
- Authors/Presenters:
Morrison, S.
Kerr, G.
Silburn
- Quantifying motor symptoms in Parkinson's disease: limb tremor and postural sway interactions
- Conference Name:
- Location: Sydney, Australia
- Date: 2005
- Authors/Presenters:
Morrison, S.
Kerr, G.
Silburn
- Bilateral tremor relations in Parkinson's disease
- Conference Name:
- Location: Queenstown, New Zealand
- Date: 2004
- Authors/Presenters:
Morrison, S.
Kerr, G.
Roodvelt, M.
Silburn
- Postural and limb tremor relations in Parkinson's disease
- Conference Name:
- Location: Queenstown, New Zealand
- Date: 2004
- Authors/Presenters:
Morrison, S.
Kerr, G.
Roodvelt, M.
Silburn
- Age-related differences in upper body control during walking
- Conference Name:
- Location: Sydney, Australia
- Date: 2004
- Authors/Presenters:
Morrison, S.
Kavanagh, J. J.
Barrett, R. S.
- Postural adaptations to enhanced tremnor in Parkinson's disease
- Conference Name:
- Location: Sydney, Australia
- Date: 2004
- Authors/Presenters:
Morrison, S.
Kerr, G.
Roodvelt, M.
Wooley, D.
Silburn
- Compensatory relationships between kinematic degrees of freedom minimiz toe clearance variability during walking
- Conference Name:
- Location: Dunedin, New Zealand
- Date: 2003
- Authors/Presenters:
Morrison, S.
MIlls, P. M.
Barrett, R. S.
- Head and Trunk acceleration in healthy young and elderly men
- Conference Name:
- Location: Dunedin, New Zealand
- Date: 2003
- Authors/Presenters:
Morrison, S.
Kavanagh, J. J.
Barrett, R. S.
- Inter-digit coordination and force control in finger-pinching
- Conference Name:
- Location: Dunedin, New Zealand
- Date: 2003
- Authors/Presenters:
Morrison, S.
Keogh, J.
Barrett, R. S.
- The effect of limb support on finger tremor dynamics in healthy adults
- Conference Name:
- Location: Dunedin, New Zealand
- Date: 2003
- Authors/Presenters:
Morrison, S.
Barrett, R. S.
Mills, P.
- Postural sway-tremor interactions during quiet stance
- Conference Name:
- Location: Sydney, Australia
- Date: 2003
- Authors/Presenters:
Morrison, S.
- 8th Annual Winter Conference on Brain Research in Queenstown, New Zealand
- Post-Graduate Scholarship, Otago University, New Zealand
- Teaching Assistant, Pennsylvania State Unversity, Pennsylvania USA
-
Contracts, Grants and Sponsored Research