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	Author	Krasovsky, T.; Berman, S.; Liebermann, D.G.
	Title	Kinematic features of continuous hand reaching movements under simple and complex rhythmical constraints			Type	Journal Article
	Year	2010	Publication	Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology	Abbreviated Journal	J Electromyogr Kinesiol
	Volume	20	Issue	4	Pages	636-641
	Keywords	Acoustic Stimulation; Adult; Biomechanics; Cues; Female; Hand/physiology; Humans; Male; Movement/physiology
	Abstract	BACKGROUND: Auditory cues are known to alter movement kinematics in healthy people as well as in people with neurological conditions (e.g., Parkinson's disease or stroke). Pacing movement to rhythmical constraints is known to change both the spatial and temporal features of movement. However, the effect of complexity of pacing on the spatial and temporal kinematic properties is still poorly understood. The current study investigated spatial and temporal aspects of movement (path and speed, respectively) and their integration while subjects followed simple isochronous or complex non-isochronous rhythmical constraints. Spatiotemporal decoupling was expected under the latter constraint. METHODS: Ten subjects performed point-to-point hand movements towards visual targets on the surface of a hemisphere, while following continuous auditory cues of different pace and meter. The spatial and temporal properties of movement were compared to geodesic paths and unimodal bell-shaped speed profiles, respectively. Multiple two-way RM-ANOVAs (pace [1-2 Hz] x meter [duple-triple]) were performed on the different kinematic variables calculated to assess hand deviations from the model data (p< or = 0.05). RESULTS: As expected, increasing pace resulted in straighter hand paths and smoother speed profiles. Meter, however, affected only the path (shorter and straighter under triple) without significantly changing speed. Such an effect was observed at the slow pace only. CONCLUSIONS: Under simple rhythmic cues, an increase in pace causes spontaneous adjustments in spatial features (straighter hand paths) while preserving temporal ones (maximally-smoothed hand speeds). Complex rhythmical cues in contrast perturb spatiotemporal coupling and challenge movement control. These results may have important practical implications in motor rehabilitation.
	Address	Department of Physical and Occupational Therapy, Faculty of Medicine, McGill University, Canada
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1050-6411	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:20382031			Approved	no
	Call Number				Serial	32
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	Author	Liebermann, D.G.; Katz, L.; Hughes, M.D.; Bartlett, R.M.; McClements, J.; Franks, I.M.
	Title	Advances in the application of information technology to sport performance			Type	Journal Article
	Year	2002	Publication	Journal of Sports Sciences	Abbreviated Journal	J Sports Sci
	Volume	20	Issue	10	Pages	755-769
	Keywords	Biofeedback, Psychology; Computer Simulation; Humans; Models, Biological; Physical Education and Training/methods; Psychomotor Performance/physiology; Sports Medicine/methods; Task Performance and Analysis; Videotape Recording
	Abstract	This paper overviews the diverse information technologies that are used to provide athletes with relevant feedback. Examples taken from various sports are used to illustrate selected applications of technology-based feedback. Several feedback systems are discussed, including vision, audition and proprioception. Each technology described here is based on the assumption that feedback would eventually enhance skill acquisition and sport performance and, as such, its usefulness to athletes and coaches in training is critically evaluated.
	Address	Department of Physical Therapy, Sackler Faculty of Medicine, University of Tel Aviv, Israel
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0264-0414	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:12363293			Approved	no
	Call Number				Serial	40
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	Author	Krasovsky, T.; Weiss, P.L.; Zuckerman, O.; Bar, A.; Keren-Capelovitch, T.; Friedman, J.
	Title	DataSpoon: Validation of an Instrumented Spoon for Assessment of Self-Feeding			Type	Journal Article
	Year	2020	Publication	Sensors (Basel, Switzerland)	Abbreviated Journal	Sensors (Basel)
	Volume	20	Issue	7	Pages
	Keywords	concurrent validity; feasibility; kinematics; outcome assessment; rehabilitation
	Abstract	Clinically feasible assessment of self-feeding is important for adults and children with motor impairments such as stroke or cerebral palsy. However, no validated assessment tool for self-feeding kinematics exists. This work presents an initial validation of an instrumented spoon (DataSpoon) developed as an evaluation tool for self-feeding kinematics. Ten young, healthy adults (three male; age 27.2 +/- 6.6 years) used DataSpoon at three movement speeds (slow, comfortable, fast) and with three different grips: “natural”, power and rotated power grip. Movement kinematics were recorded concurrently using DataSpoon and a magnetic motion capture system (trakSTAR). Eating events were automatically identified for both systems and kinematic measures were extracted from yaw, pitch and roll (YPR) data as well as from acceleration and tangential velocity profiles. Two-way, mixed model Intraclass correlation coefficients (ICC) and 95% limits of agreement (LOA) were computed to determine agreement between the systems for each kinematic variable. Most variables demonstrated fair to excellent agreement. Agreement for measures of duration, pitch and roll exceeded 0.8 (excellent agreement) for >80% of speed and grip conditions, whereas lower agreement (ICC < 0.46) was measured for tangential velocity and acceleration. A bias of 0.01-0.07 s (95% LOA [-0.54, 0.53] to [-0.63, 0.48]) was calculated for measures of duration. DataSpoon enables automatic detection of self-feeding using simple, affordable movement sensors. Using movement kinematics, variables associated with self-feeding can be identified and aid clinical reasoning for adults and children with motor impairments.
	Address	Department of Physical Therapy, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1424-8220	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:32283624; PMCID:PMC7180859			Approved	no
	Call Number				Serial	104
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	Author	Nahab, Fatta; Kundu, Prantik; Gallea, Cecile; Kakareka, John; Pursley, Randy; Pohida, Tom; Miletta, Nathaniel; Friedman, Jason; Hallett, Mark
	Title	The neural processes underlying self-agency			Type	Journal Article
	Year	2011	Publication	Cerebral Cortex	Abbreviated Journal
	Volume	21	Issue	1	Pages	48-55
	Keywords
	Abstract	Self-agency (SA) is the individual’s perception that an action is the consequence of his/her own intention. The neural networks underlying SA are not well understood. We carried out a novel, ecologically valid, virtual-reality experiment using BOLD-fMRI where SA could be modulated in real-time while subjects performed voluntary finger movements. Behavioral testing was also performed to assess the explicit judgment of SA. Twenty healthy volunteers completed the experiment. Results of the behavioral testing demonstrated paradigm validity along with the identification of a bias that led subjects to over- or underestimate the amount of control they had. The fMRI experiment identified two discrete networks. These leading and lagging networks likely represent a spatial and temporal flow of information, with the leading network serving the role of mismatch detection and the lagging network receiving this information and mediating its elevation to conscious awareness, giving rise to SA.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Penn State @ write.to.jason @			Serial	21
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	Author	Liebermann, D.G.; Buchman, A.S.; Franks, I.M.
	Title	Enhancement of motor rehabilitation through the use of information technologies			Type	Journal Article
	Year	2006	Publication	Clinical Biomechanics (Bristol, Avon)	Abbreviated Journal	Clin Biomech (Bristol, Avon)
	Volume	21	Issue	1	Pages	8-20
	Keywords	Biotechnology/methods; Humans; Medical Informatics/methods; Motion Therapy, Continuous Passive/methods; Movement Disorders/rehabilitation; Musculoskeletal Manipulations/methods; Rehabilitation/methods; Robotics/methods; Therapy, Computer-Assisted/*methods
	Abstract	The recent development of information technologies has dramatically increased the tools available for facilitating motor rehabilitation. This review focuses on technologies which can be used to augment movement-related information both to patients as well as to their therapists. A brief outline of the motor system emphasizes the role of spinal motor neurons in the control of voluntary movement and rehabilitative efforts. Technologies which induce passive motion to stimulate spinal motor output as well as technologies that stimulate active voluntary movements are discussed. Finally, we review technologies and notational methods that can be used to quantify and assess the quality of movement for evaluating the efficacy of motor rehabilitation efforts. We conclude that stronger evidence is necessary to determine the applicability of the wide range of technologies now available to clinical rehabilitation efforts.
	Address	Department of Physical Therapy, Sackler Faculty of Medicine, University of Tel Aviv, Israel. dlieberm@post.tau.ac.il
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0268-0033	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16198463			Approved	no
	Call Number				Serial	49
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