Motor imagery in physical therapist practice

Physical Therapy

Volumn 87, Issue 7, 2007, Pages 942-953

  Dickstein, Ruth ^a   Deutsch, Judith E ^b  

^a UNIVERSITY OF HAIFA   (Israel)

^b UNIVERSITY OF MEDICINE AND DENTISTRY OF NEW JERSEY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ATHLETE; BODY MOVEMENT; CLINICAL PRACTICE; HUMAN; IMAGERY; LEARNING; MOTOR PERFORMANCE; NEUROLOGIC DISEASE; PARKINSON DISEASE; PHYSIOTHERAPIST; REVIEW; SPINAL CORD INJURY; STROKE;

ACTIVITIES OF DAILY LIVING; CEREBROVASCULAR ACCIDENT; HUMANS; IMAGERY (PSYCHOTHERAPY); PHYSICAL THERAPY MODALITIES; PSYCHOMOTOR PERFORMANCE;

EID: 34347355431     PISSN: 00319023     EISSN: None     Source Type: Journal    
DOI: 10.2522/ptj.20060331     Document Type: Review

References (143)

1. Imagery [definition]. Available at: http://en.wikipedia.org/wiki/Imagery. Accessed January 23, 2006.
2. LeBoutillier N, Marks DF. Mental imagery and creativity: a meta-analytic review study. Br J Psychol. 2003;94:29-44.
3. Guillot A, Collet C. Contribution from neurophysiological and psychological methods to the study of motor imagery. Brain Res Brain Res Rev. 2005;50:387-397.
4. Solodkin A, Hlustik P, Chen EE, Small SL. Fine modulation in network activation during motor execution and motor imagery. Cereb Cortex. 2004;14:1246-1255.
5. Annett J. Motor imagery: perception or action? Neuropsychologia. 1995;33:1395-1417.
6. Jeannerod M, Decety J. Mental motor imagery: a window into the representational stages of action. Curr Opin Neurobiol. 1995;5:727-732.
7. Kosslyn SM, Ganis G, Thompson WL. Neural foundations of imagery. Nat Rev Neurosci. 2001;2:635-642.
8. Michelon P, Vettel JM, Zacks JM. Lateral somatotopic organization during imagined and prepared movements. J Neurophysiol. 2006;95:811-822.
9. Braun SM, Beurskens AJ, Borm PJ, et al. The effects of mental practice in stroke rehabilitation: a systematic review. Arch Phys Med Rehabil. 2006;87:842-852.
10. Malouin F, Belleville S, Richards CL, et al. Working memory and mental practice outcomes after stroke. Arch Phys Med Rehabil. 2004;85:177-183.
11. Fansler CL, Poff CL, Shepard KF. Effects of mental practice on balance in elderly women. Phys Ther. 1985;65:1332-1338.
12. Warner L, McNeill ME. Mental imagery and its potential for physical therapy. Phys Ther. 1988;68:516-521.
13. Decety J, Ingvar DH. Brain structures participating in mental simulation of motor behavior: a neuropsychological interpretation. Acta Psychol (Amst). 1990;73:13-34.
14. Chatto CA, Deutsch JE, Pillai J, et al. Brain activation during kinesthetic and visual imagery of walking [abstract]. J Neurol Phys Ther. 2005;29:195.
15. Deutsch JE, Fischer S, Liu W, et al. Representation of imagined and executed sequential finger movements of adults post stroke and healthy controls [abstract]. J Neurol Phys Ther. 2005;29:194.
16. Ehrsson HH, Geyer S, Naito E. Imagery of voluntary movement of fingers, toes, and tongue activates corresponding bodypart-specific motor representations. J Neurophysiol. 2003;90:3304-3316.
17. Lacourse MG, Turner JA, Randolph-Orr E, et al. Cerebral and cerebellar sensorimotor plasticity following motor imagery-based mental practice of a sequential movement. J Rehabil Res Dev. 2004,41:505-524.
18. Lotze M, Cohen LG. Volition and imagery in neurorehabilitation. Cogn Behav Neurol. 2006;19:135-140.
19. Lotze M, Halsband U. Motor imagery. J Physiol Paris. 2006;99(4-6):386-395.
20. Dobkin BH. Plasticity in the sensorimotor and cognitive networks. In: Dobkin BH, ed. The Clinical Science of Neurologic Rehabilitation. 2nd ed. New York, NY: Oxford University Press; 2003:16-18.
21. Rushall BS, Lippman LG. The role of imagery in physical performance. International Journal for Sport Psychology. 1997;29:57-72.
22. Schmidt RA, Wrisberg CA. Mental rehearsal techniques. In: Schmidt RA, Wrisberg CA, eds. Motor Learning and Performance. 2nd ed. Champaign, Ill: Human Kinetics; 2000:22-225.
23. Dobkin BH. Neurobiology of rehabilitation. Ann N Y Acad Sci. 2004;1038:148-170.
24. Hardy L, Callow N. Efficacy of external and internal visual imagery perspectives for the enhancement of performance on tasks in which form is important. Journal of Sport and Exercise Psychology. 1999;21:95-112.
25. Liu KP, Chan CC, Lee TM, Hui-Chan CW. Mental imagery for relearning of people after brain injury. Brain Inj. 2004;18:1163-1172.
26. Page SJ, Levine P, Sisto S, Johnston MV. A randomized efficacy and feasibility study of imagery in acute stroke. Clin Rehabil. 2001;15:233-240.
27. Suinn RM. Mental practice in sport psychology: where have we been, where do we go? Clinical Psychology: Science and Practice. 1997;4:189-207.
28. Nyberg L, Eriksson J, Larsson A, Marklund P. Learning by doing versus learning by thinking: an fMRI study of motor and mental training. Neuropsychologia. 2006;44:711-717.
29. Sharma N, Pomeroy VM, Baron JC. Motor imagery: a backdoor to the motor system after stroke? Stroke. 2006;37:1941-1952.
30. Callow N, Hardy L, Hall C. The effects of a motivational general-mastery imagery intervention on the sport confidence of high-level badminton players. Res Q Exerc Sport. 2001;72:389-400.
31. Halvari H. Effects of mental practice on performance are moderated by cognitive anxiety as measured by the Sport Competition Anxiety Test. Percept Mot Skills. 1996;83(3 pt 2):1375-1383.
32. Martin K, Moritz S, Hall C. Imagery use in sport: a literature review and applied model. Sport Psychologist. 1999;13:245-268.
33. Paivio A. Cognitive and motivational functions of imagery in human performance. Can J Appl Sport Sci. 1985;10:22S-28S.
34. Sidaway B, Trzaska AR. Can mental practice increase ankle dorsiflexor torque? Phys Ther. 2005;85:1053-1060.
35. Zijdewind I, Toering ST, Bessem B, et al. Effects of imagery motor training on torque production of ankle plantar flexor muscles. Muscle Nerve. 2003;28:168-173.
36. Gentili R, Papaxanthis C, Pozzo T. Improvement and generalization of arm motor performance through motor imagery practice. Neuroscience. 2006;137:761-772.
37. Williams JG, Odley JL, Callaghan M. Motor imagery boosts proprioceptive neuromuscular facilitation in the attainment and retention of range-of-motion at the hip joint. Journal of Sports Science and Medicine. 2004;3:160-166.
38. Hamel MF, Lajoie Y. Mental imagery: effects on static balance and attentional demands of the elderly. Aging Clin Exp Res. 2005;17:223-228.
39. Bachman K. Using mental imagery to practice a specific psychomotor skill. J Contin Educ Nurs. 1990;21:125-128.
40. DesCoteaux JG, Leclere H. Learning surgical technical skills. Can J Surg. 1995;38:33-38.
41. Blair A, Hall C, Leyshon G. Imagery effects on the performance of skilled and novice soccer players. J Sports Sci. 1993;11:95-101.
42. Boschker MS, Bakker FC, Rietberg MB. Retroactive interference effects of mentally imagined movement speed. J Sports Sci. 2000;18:593-603.
43. Yue G, Cole KJ. Strength increases from the motor program: comparison of training with maximal voluntary and imagined muscle contractions. J Neurophysiology. 1992;67:1114-1123.
44. Yaguez L, Nadel D, Hoffman H, et al. A mental route to motor learning: improving trajectorial kinematics through imagery training. Behav Brain Res. 1998;90:95-106.
45. Taktek K. The effects of mental imagery on the acquisition of motor skills and performance: a literature review with theoretical implications. Journal of Mental Imagery. 2004;29:79-114.
46. Jackson PL, Lafleur MF, Malouin F, et al. Potential role of mental practice using motor imagery in neurologic rehabilitation. Arch Phys Med Rehabil. 2001;82:1133-1141.
47. Page SJ, Levine P, Sisto SA, Johnston MV. Mental practice combined with physical practice for upper-limb motor deficit in subacute stroke. Phys Ther. 2001;81:1455-1462.
48. Malouin F, Richards CL, Doyon J, et al. Training mobility tasks after stroke with combined mental and physical practice: a feasibility study. Neurorehabil Neural Repair. 2004;18:66-75.
49. Dijkerman HC, Ietswaart M, Johnston M, MacWalter RS. Does motor imagery training improve hand function in chronic stroke patients? A pilot study. Clin Rehabil. 2004;18:538-549.
50. Stevens J, Stoykov ME. Using motor imagery in the rehabilitation of hemiparesis. Arch Phys Med Rehabil. 2003;84:1090-1092.
51. Liu KP, Chan CC, Lee TM, Hui-Chan CW. Mental imagery for promoting relearning for people after stroke: a randomized controlled trial. Arch Phys Med Rehabil. 2004;85:1403-1408.
52. Page SJ, Levine P, Leonard AC. Effects of mental practice on affected limb use and function in chronic stroke. Arch Phys Med Rehabil. 2005;86:399-402.
53. Niemeier JP, Cifu DX, Kishore R. The lighthouse strategy: improving the functional status of patients with unilateral neglect after stroke and brain injury using a visual imagery intervention. Top Stroke Rehabil. 2001;8:10-18.
54. Smania N, Bazoli F, Piva D, Guidetti G. Visuomotor imagery and rehabilitation of neglect. Arch Phys Med Rehabil. 1997;78:430-436.
55. Johnson SH, Sprehn G, Saykin AJ. Intact motor imagery in chronic upper limb hemiplegics: evidence for activity-independent action representations. J Cogn Neurosci. 2002;14:841-852.
56. Kimberley TJ, Khandekar G, Skraba LL, et al. Neural substrates for motor imagery in severe hemiparesis. Neurorehabil Neural Repair. 2006;20:268-277.
57. Crosbie JH, McDonough SM, Gilmore DH, Wiggam MI. The adjunctive role of mental practice in the rehabilitation of the upper limb after hemiplegic stroke: a pilot study. Clin Rehabil. 2004;18:60-68.
58. Yoo E, Park E, Chung B. Mental practice effect on line-tracing accuracy in persons with hemiparetic stroke: a preliminary study. Arch Phys Med Rehabil. 2001;82:1213-1218.
59. Johnson SH. Imagining the impossible: intact motor representations in hemiplegics. Neuroreport. 2000;11:729-732.
60. Sirigu A, Duhamel JR, Cohen L, et al. The mental representation of hand movements after parietal cortex damage. Science. 1996;273:1564-1568.
61. Tomasino B, Rumiati RI. Effects of strategies on mental rotation and hemispheric lateralization: neuropsychological evidence. J Cogn Neurosci. 2004;16:878-888.
62. Cramer SC, Orr EL, Cohen MJ, Lacourse MG. Effects of motor imagery training after chronic, complete spinal cord injury. Exp Brain Res. 2006;177:233-242.
63. Alkadhi H, Brugger P, Boendermaker SH, et al. What disconnection tells about motor imagery: evidence from paraplegic patients. Cereb Cortex. 2005;15:131-140.
64. Sabbah P, Leveque C, Pfefer F, et al. Functional MR imaging and traumatic paraplegia: preliminary report. J Neuroradiol. 2000;27:233-237.
65. Cramer SC, Lastra L, Lacourse MG, Cohen MJ. Brain motor system function after chronic, complete spinal cord injury. Brain. 2005;128:2941-2950.
66. Muller-Putz GR, Scherer R, Pfurtscheller G, Rupp R. EEG-based neuroprosthesis control: a step towards clinical practice. Neurosci Lett. 2005;382(1-2):169-174.
67. Muller-Putz GR, Scherer R, Pfurtscheller G, Rupp R. Brain-computer interfaces for control of neuroprostheses: from synchronous to asynchronous mode of operation. Biomed Tech (Berl). 2006;51:57-63.
68. Frak V, Cohen H, Pourcher E. A dissociation between real and simulated movements in Parkinson's disease. Neuroreport. 2004;15:1489-1492.
69. Cunnington R, Egan GF, O'Sullivan JD, et al. Motor imagery in Parkinson's disease: a PET study. Mov Disord. 2001;16:849-857.
70. Filippi MM, Oliveri M, Pasqualetti P, et al. Effects of motor imagery on motor cortical output topography in Parkinson's disease. Neurology. 2001;57:55-61.
71. Thobois S, Dominey P, Fraix V, et al. Effects of subthalamic nucleus stimulation on actual and imagined movement in Parkinson's disease: a PET study. J Neurol. 2002;249:1689-1698.
72. Yaguez L, Canavan AG, Lange HW, Homberg V. Motor learning by imagery is differentially affected in Parkinson's and Huntington's diseases. Behav Brain Res. 1999;102(1-2):115-127.
73. Tamir R, Dickstein R, Huberman M. Integration of motor imagery and physical practice in group treatment applied to subjects with Parkinson's disease. Neurorehabil Neural Repair. 2007;21:68-75.
74. Moseley GL. Graded motor imagery is effective for long-standing complex regional pain syndrome: a randomised controlled trial. Pain. 2004;108(1-2):192-198.
75. Moseley GL. Is successful rehabilitation of complex regional pain syndrome due to sustained attention to the affected limb? A randomised clinical trial. Pain. 2005,114(1-2):54-61.
76. Moseley GL. Graded motor imagery for pathologic pain: a randomized controlled trial. Neurology. 2006;67:2129-2134.
77. Birklein F, Maihofner C. Use your imagination: training the brain and not the body to improve chronic pain and restore function. Neurology. 2006,61:2115-2116.
78. Dickstein R, Dunsky A, Marcovitz E. Motor imagery for gait rehabilitation in poststroke hemiparesis. Phys Ther. 2004;84:1167-1177.
79. Mahoney MJ, Avener M. Psychology of the elite athlete: an exploratory study. Cognitive Therapy and Research. 1977;1:135-141.
80. Callow N, Hardy L. The relationship between the use of kinaesthetic imagery and different visual imagery perspectives. J Sports Sci. 2004;22:167-177.
81. Stevens JA. Interference effects demonstrate distinct roles for visual and motor imagery during the mental representation of human action. Cognition. 2005;95:329-350.
82. Fery YA. Differentiating visual and kinesthetic imagery in mental practice. Can J Exp Psychol. 2003;57:1-10.
83. Rodrigues EC, Imbiriba LA, Leite GR, et al. Mental stimulation strategy affects postural control [in Portuguese]. Rev Bras Psiquiatr. 2003;25(suppl 2):33-35.
84. Hall C, Buckolz E, Fishburne GJ. Imagery and the acquisition of motor skills. Can J Sport Sci. 1992;17:19-27.
85. Farahat E, Ille A, Thon B. Effect of visual and kinesthetic imagery on the learning of a patterned movement. International Journal of Sport Psychology. 2004;35:119-132.
86. White A, Hardy L. Use of different imagery perspectives on the learning and performance of different motor skills. Br J Psychol. 1995;86(pt 2):169-180.
87. Kim JG, Chung ST. Auditory, visual, and kinesthetic imagery on badminton service learning and performance. Journal of Sport and Exercise Psychology. 1998;20:S67-S67.
88. Isaac AR, Marks DF. Individual differences in mental imagery experience: developmental changes and specialization. Br J Psychol. 1994;85(pt 4):479-500.
89. Madigan R, Frey RD, Matlock TS. Cognitive strategies of university athletes. Can J Sport Sci. 1992;17:135-140.
90. Hall CR, Pongrac J. Movement Imagery Questionnaire. London, Ontario, Canada: Department of Physical Education, University of Western Ontario; 1983.
91. Hall CR, Martin KA. Measuring movement imagery abilities: a revision of the movement imagery questionnaire. Journal of Mental Imagery. 1997;21:143-154.
92. Atienza F, Balaguer I, Garcia-Merita M. Factor analysis and reliability of the Movement Imagery Questionnaire. Percept Mot Skills. 1994;78:1323-1328.
93. Hall CR. Individual differences in the mental practice and imagery of motor skill performance. Can J Appl Sport Sci. 1985;10:17S-21S.
94. Malouin F. The Kinesthetic and Visual Imagery Questionnaire (KVIQ) for assessing motor imagery in persons with physical disabilities: a reliability and construct validity study. J Neurol Phys Ther. 2007. In press.
95. Isaac A, Marks DF, Russell DG. An instrument for assessing imagery of movement: the vividness of movement imagery questionnaire (VMIQ). Journal of Mental Imagery. 1986;10:23-30.
96. Campos A, Perez M. A factor analysis study of two measures of mental imagery. Percept Mot Skills. 1990;71:71:995-1001.
97. Hall CR, Mack DE, Paivio A, Hausenblas HA. Imagery use by athletes: development of the sport imagery questionnaire. International Journal of Sport Psychology. 1998;29:73-89.
98. Cumming J, Hall C. Athletes' use of imagery in the off-season. Sport Psychologist. 2002;16:160-172.
99. Abma CL, Fry MD, Li YH, Relyea G. Differences in imagery content and imagery ability between high and low confident track and field athletes. Journal of Applied Sport Psychology. 2002;14:67-75.
100. Beauchamp MR, Bray SR, Albinson JG. Pre-competition imagery, self-efficacy and performance in collegiate golfers. J Sports Sci. 2002;20:697-705.
101. Short SE, Tenute A, Feltz DL. Imagery use in sport: mediational effects for efficacy. J Sports Sci. 2005;23:951-960.
102. Weinberg R, Butt J, Knight B, et al. The relationship between the use and effectiveness of imagery: an exploratory investigation. Journal of Applied Sport Psychology. 2003;15:26-40.
103. Goss S, Hall C, Buckolz E, Fishburne G. Imagery ability and the acquisition and retention of movement. Mem Cognit. 1986;14:469-477.
104. Corlett JT, Anton J, Kozub S, Tardif M. Is locomotor distance estimation guided by visual imagery. Percept Mot Skills. 1989;69:1267-1272.
105. Mulder T, Zijlstra S, Zijlstra W, Hochstenbach J. The role of motor imagery in learning a totally novel movement. Exp Brain Res. 2004;154:211-217.
106. Mutsaarts M, Steenbergen B, Bekkering H. Anticipatory planning deficits and task context effects in hemiparetic cerebral palsy. Exp Brain Res. 2006;172:151-162.
107. Aleman A, van Lee L, Mantione M, et al. Visual imagery without visual experience: evidence from congenitally totally blind people. Neuroreport. 2001;12:2601-2604.
108. Imbiriba LA, Rodrigues EC, Magalhaes J, Vargas CD. Motor imagery in blind subjects: The influence of the previous visual experience. Neurosci Lett. 2006;400(1-2):181-185.
109. Bohan M, Pharmer JA, Stokes AF. When does imagery practice enhance performance on a motor task? Percept Mot Skills. 1999;88:651-658.
110. Grouios G. Mental practice: a review. Journal of Sport Behavior. 1992;15(2):42-59.
111. Decety J, Grezes J. Neural mechanisms subserving the perception of human actions. Trends Cogn Sci. 1999;3:172-178.
112. Porretta DL, Surburg PR. Imagery and physical practice in the acquisition of gross motor timing of coincidence by adolescents with mild mental retardation. Percept Mot Skills. 1995;80(3 pt 2):1171-1183.
113. Cumming J, Hall C, Harwood C, Gammage K. Motivational orientations and imagery use: a goal profiling analysis. J Sports Sci. 2002;20:127-136.
114. Hall C, Bernoties L, Schmidt D. Interference effects of mental imagery on a motor task. Br J Psychol. 1995;86(pt 2):181-190.
115. Roure R, Collet C, Deschaumes-Molinaro C, et al. Autonomic nervous system responses correlate with mental rehearsal in volleyball training. Eur J Appl Physiol Occup Physiol. 1998;78:99-108.
116. Decety J, Jeannerod M. Mentally simulated movements in virtual reality: does Fitts's law hold in motor imagery? Behav Brain Res. 1995;72:127-134.
117. Parsons LM. Temporal and kinematicproperties of motor behavior reflected in mentally simulated action. J Exp Psychol Hum Percept Perform. 1994;20:709-730.
118. Feltz D, Landers D. The effects of mental practice on motor skill learning and performance: a meta-analysis. Journal of Sport Psychology. 1983;51:25-57.
119. Murphy SM. Imagery interventions in sport. Med Sci Sports Exerc. 1994;26:486-494.
120. Driediger M, Hall C, Callow N. Imagery use by injured athletes: a qualitative analysis. J Sports Sci. 2006;24:261-271.
121. Hardy L, Fazey J. Mental Rehearsal: A Guide for Sports Performance. Leeds, United Kingdom: National Coaching Foundation, Springfield Books; 1990.
122. Dunsky A, Dickstein R, Ariav C, et al. Motor imagery practice in gait rehabilitation of chronic post-stroke hemiparesis: four case studies. Int J Rehabil Res. 2006;29:351-356.
123. Driskell JE, Copper C, Moran A. Does mental practice enhance performance? J Appl Psychol. 1994;79:481-492.
124. Magill RA. Motor Learning: Concepts and Applications. 4th ed. Madison, Wis: Brown & Benchmark; 1993.
125. O'Sullivan S, Schmitz T. Physical Rehabilitation: Assessment and Treatment. Philadelphia, Pa: FA Davis; 2001.
126. Strangman G, Heindel WC, Anderson JA, Sutton JP. Learning motor sequences with and without knowledge of governing rules. Neurorehabil Neural Repair. 2005;19:93-114.
127. Decety J, Jeannerod M, Germain M, Pastene J. Vegetative response during imagined movement is proportional to mental effort. Behav Brain Res. 1991;42:1-5.
128. Fusi S, Cutuli D, Valente MR, et al. Cardioventilatory responses during real or imagined walking at low speed. Arch Ital Biol. 2005;143(3-4):223-228.
129. Jeannerod M, Frak V. Mental imaging of motor activity in humans. Curr Opin Neurobiol. 1999;9:735-739.
130. Papaxanthis C, Pozzo T, Skoura X, Schieppati M. Does order and timing in performance of imagined and actual movements affect the motor imagery process? The duration of walking and writing task. Behav Brain Res. 2002;134(1-2):209-215.
131. Papaxanthis C, Schieppati M, Gentili R, Pozzo T. Imagined and actual arm movements have similar durations when performed under different conditions of direction and mass. Exp Brain Res. 2002;143:447-452.
132. Sirigu A, Cohen L, Duhamel JR, et al. Congruent unilateral impairments for real and imagined hand movements. Neuroreport. 1995;6:997-1001.
133. Maruff P, Wilson PH, De Fazio J, et al. Asymmetries between dominant and non-dominant hands in real and imagined motor task performance. Neuropsychologia. 1999;37:379-384.
134. Cerritelli B, Maruff P, Wilson P, Currie J. The effect of an external load on the force and timing components of mentally represented actions. Behav Brain Res. 2000;108:91-96.
135. Maruff P, Velakoulis D. The voluntary control of motor imagery: imagined movements in individuals with feigned motor impairment and conversion disorder. Neuropsychologia. 2000;38:1251-1260.
136. McLennan NL, Georgiou NL, Mattingley JL, et al. Motor imagery in Huntington's disease. J Clin Exp Neuropsychol. 2000;22:379-390.
137. Guillot A, Collet C. Duration of mentally simulated movement: a review. J Mot Behav. 2005;37:10-20.
138. Guillot A, Collet C, Dittmar A. Influence of environmental context on motor imagery quality: an autonomic nervous system study. Biology of Sport. 2005;22:215-226.
139. Buccino G, Solodkin A, Small SL. Functions of the mirror neuron system: implications for neurorehabilitation. Cogn Behav Neurol. 2006;19:55-63.
140. Morganti F, Gaggioli A, Castelnuovo G, et al. The use of technology-supported mental imagery in neurological rehabilitation: a research protocol. Cyberpsychol Behav. 2003;6:421-427.
141. Neuper C, Scherer R, Reiner M, Pfurtscheller G. Imagery of motor actions: differential effects of kinesthetic and visual-motor mode of imagery in single-trial EEG. Brain Res Cogn Brain Res. 2005;25:668-677.
142. Leeb R, Scherer R, Keinrath C, et al. Exploring virtual environments with an EEG-based BCI through motor imagery. Biomed Tech (Berl). 2005;50:86-91.
143. Pfurtscheller G, Leeb R, Keinrath C, et al. Walking from thought. Brain Res. 2006;1071:145-152.