James Lackner

Summary

Affiliation: Brandeis University
Country: USA

Publications

  1. ncbi request reprint Precision contact of the fingertip reduces postural sway of individuals with bilateral vestibular loss
    J R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 126:459-66. 1999
  2. ncbi request reprint Adaptation to rotating artificial gravity environments
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, and Center for Complex Systems, Brandeis University, Waltham, MA 02454, USA
    J Vestib Res 13:321-30. 2003
  3. ncbi request reprint Space motion sickness
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Volen Center for Complex Systems, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 175:377-99. 2006
  4. doi request reprint Control and calibration of multi-segment reaching movements
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, MS033, Waltham, MA 02454 9110, USA
    Adv Exp Med Biol 629:681-98. 2009
  5. doi request reprint Angular displacement perception modulated by force background
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 195:335-43. 2009
  6. doi request reprint Audiogravic and oculogravic illusions represent a unified spatial remapping
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, MS 033, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 202:513-8. 2010
  7. ncbi request reprint Adaptation to Coriolis force perturbation of movement trajectory; role of proprioceptive and cutaneous somatosensory feedback
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory and Center for Complex Systems, Brandeis University, Waltham, MA 02454, USA
    Adv Exp Med Biol 508:69-78. 2002
  8. ncbi request reprint Stabilization of posture by precision touch of the index finger with rigid and flexible filaments
    J R Lackner
    Ashton Graybiel Spatial Orientation Laboratory and Volen Center for Complex Systems, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 139:454-64. 2001
  9. ncbi request reprint Fingertip contact suppresses the destabilizing influence of leg muscle vibration
    J R Lackner
    Ashton Graybiel Spatial Orientation Laboratory and Volen Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02454 9110, USA
    J Neurophysiol 84:2217-24. 2000
  10. ncbi request reprint Artificial gravity as a countermeasure in long-duration space flight
    J R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Volen Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02454, USA
    J Neurosci Res 62:169-76. 2000

Research Grants

Detail Information

Publications29

  1. ncbi request reprint Precision contact of the fingertip reduces postural sway of individuals with bilateral vestibular loss
    J R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 126:459-66. 1999
    ..These findings show that during quiet stance light touch of the index finger with a stationary surface can be as effective or even more so than vestibular function for minimizing postural sway...
  2. ncbi request reprint Adaptation to rotating artificial gravity environments
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, and Center for Complex Systems, Brandeis University, Waltham, MA 02454, USA
    J Vestib Res 13:321-30. 2003
    ..After adaptation to a rotating environment is complete, the Coriolis forces generated by movements within it also become transparent and are not felt although they are still present...
  3. ncbi request reprint Space motion sickness
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Volen Center for Complex Systems, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 175:377-99. 2006
    ..Motion sickness arises when movements are made during exposure to unusual force backgrounds both higher and lower in magnitude than 1 g earth gravity...
  4. doi request reprint Control and calibration of multi-segment reaching movements
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, MS033, Waltham, MA 02454 9110, USA
    Adv Exp Med Biol 629:681-98. 2009
    ..His work has also inspired many other motor control scientists leading to innumerable experimental studies and observations that have greatly expanded our knowledge of motor function...
  5. doi request reprint Angular displacement perception modulated by force background
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 195:335-43. 2009
    ..The significance of the findings for predicting and preventing motion sickness and disorientation in orbital space flight and in rotating artificial gravity environments is discussed...
  6. doi request reprint Audiogravic and oculogravic illusions represent a unified spatial remapping
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, MS 033, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 202:513-8. 2010
    ..Vestibular, somatosensory, and oculomotor signals could contribute to the proposed shift in the reference system...
  7. ncbi request reprint Adaptation to Coriolis force perturbation of movement trajectory; role of proprioceptive and cutaneous somatosensory feedback
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory and Center for Complex Systems, Brandeis University, Waltham, MA 02454, USA
    Adv Exp Med Biol 508:69-78. 2002
    ....
  8. ncbi request reprint Stabilization of posture by precision touch of the index finger with rigid and flexible filaments
    J R Lackner
    Ashton Graybiel Spatial Orientation Laboratory and Volen Center for Complex Systems, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 139:454-64. 2001
    ....
  9. ncbi request reprint Fingertip contact suppresses the destabilizing influence of leg muscle vibration
    J R Lackner
    Ashton Graybiel Spatial Orientation Laboratory and Volen Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02454 9110, USA
    J Neurophysiol 84:2217-24. 2000
    ..These experiments show that haptic contact of the hand with a stable surface can suppress abnormal proprioceptive and motor signals in leg muscles...
  10. ncbi request reprint Artificial gravity as a countermeasure in long-duration space flight
    J R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Volen Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02454, USA
    J Neurosci Res 62:169-76. 2000
    ..The central principles of equilibrium point theories lead to the equifinality prediction, which is violated by movements made in rotating reference frames...
  11. ncbi request reprint Aspects of body self-calibration
    J R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Volen Center for Complex Systems, Brandeis University, Waltham, MA 02454, USA
    Trends Cogn Sci 4:279-88. 2000
    ..This allows accurate control to be maintained without our perceiving the forces generated...
  12. ncbi request reprint Human orientation and movement control in weightless and artificial gravity environments
    J R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 130:2-26. 2000
    ..Recent developments in adapting humans to artificial gravity conditions are discussed as a way of maintaining sensory-motor and structural integrity in extended missions involving transitions between different force environments...
  13. ncbi request reprint Vestibular, proprioceptive, and haptic contributions to spatial orientation
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, MA 02454, USA
    Annu Rev Psychol 56:115-47. 2005
    ..Path integration, place cells, and head direction cells are described along with implications for using immersive virtual environments for training geographic spatial knowledge of real environments...
  14. ncbi request reprint Task-dependent motor learning
    Isaac Kurtzer
    Ashton Graybiel Spatial Orientation Laboratory and Volen Center for Complex Systems, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 153:128-32. 2003
    ..Therefore, both feedforward and feedback control mechanisms show task-dependent modulation in a motor learning paradigm...
  15. ncbi request reprint Adaptation to a novel multi-force environment
    Isaac Kurtzer
    Ashton Graybiel Spatial Orientation Laboratory, Volen Center for Complex Systems, Brandeis University, 415 South St Waltham, MA, 02454, USA
    Exp Brain Res 164:120-32. 2005
    ..An additional experiment suggested that the velocity-dependent component is partitioned relative to the background load in a limb-based coordinate frame...
  16. doi request reprint Dynamics model for analyzing reaching movements during active and passive torso rotation
    Simone B Bortolami
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, MA, 02454 9110, USA
    Exp Brain Res 187:525-34. 2008
    ..Our model provides a means of evaluating the different sources of force and the total muscle force needed to control the trajectory of the arm in their presence...
  17. ncbi request reprint Motor control and learning in altered dynamic environments
    James R Lackner
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, 415 South Street, Waltham, Massachusetts, 02454 9110, USA
    Curr Opin Neurobiol 15:653-9. 2005
    ....
  18. ncbi request reprint Localization of the subjective vertical during roll, pitch, and recumbent yaw body tilt
    Simone B Bortolami
    Ashton Graybiel Spatial Orientation Laboratory, MS 033, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 173:364-73. 2006
    ..Our data constitute the first tri-dimensional assessment of the subjective vertical using a common measurement procedure and provide the basis for the tri-axial modeling of vestibular function presented in the companion paper...
  19. ncbi request reprint Coordinated turn-and-reach movements. I. Anticipatory compensation for self-generated coriolis and interaction torques
    Pascale Pigeon
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, Massachusetts 02454 9110, USA
    J Neurophysiol 89:276-89. 2003
    ..2 g greatly deflect movement trajectories and endpoints. We conclude that compensatory motor innervations are engaged in a predictive fashion to counteract impending self-generated interaction torques during voluntary reaching movements...
  20. ncbi request reprint Sensorimotor aspects of high-speed artificial gravity: III. Sensorimotor adaptation
    Paul DiZio
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, MS033, Waltham, MA 02454, USA
    J Vestib Res 12:291-9. 2002
    ..Coriolis force perturbations of head movements also occur in a rotating environment but adaptation gradually develops over the course of many head movements...
  21. ncbi request reprint Coordinated turn-and-reach movements. II. Planning in an external frame of reference
    Pascale Pigeon
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, Massachusetts 02454 9110, USA
    J Neurophysiol 89:290-303. 2003
    ..Taken together, these results support the conclusion that turn-and-reach movements are controlled in an external frame of reference...
  22. doi request reprint Kinetic analysis of arm reaching movements during voluntary and passive rotation of the torso
    Simone B Bortolami
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, MA, USA
    Exp Brain Res 187:509-23. 2008
    ..We conclude that there is anticipatory pre-programmed compensation for self-generated Coriolis forces during voluntary torso rotation contingent on intended torso motion and arm trajectory...
  23. doi request reprint A new time-frequency approach to estimate single joint upper limb impedance
    Davide Piovesan
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, MA 02454, USA
    Conf Proc IEEE Eng Med Biol Soc 2009:1282-5. 2009
    ..For this reason it can be an optimum tool to easily estimate limb impedance of stroke patients, before, during, and after robot therapy sessions, without interfering with the delivered treatment...
  24. doi request reprint Influence of galvanic vestibular stimulation on postural recovery during sudden falls
    Simone B Bortolami
    Ashton Graybiel Spatial Orientation Laboratory, MS 033, Brandeis University, P O Box 549110, Waltham, MA 02454 9110, USA
    Exp Brain Res 205:123-9. 2010
    ..Our findings are consistent with theoretical analyses of the influence of GVS on the semicircular canals and otolith organs of the inner ear...
  25. ncbi request reprint Perceived self-motion in two visual contexts: dissociable mechanisms underlie perception
    W Geoffrey Wright
    Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, MA 02454, USA
    J Vestib Res 16:23-8. 2006
    ....
  26. ncbi request reprint Influences of arm proprioception and degrees of freedom on postural control with light touch feedback
    Ely Rabin
    New York College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, NY 11568 8000, USA
    J Neurophysiol 99:595-604. 2008
    ....
  27. ncbi request reprint Balance in a rotating artificial gravity environment
    Kazuhiro Soeda
    Ashton Graybiel Spatial Orientation Laboratory and Volen Center for Complex Systems, Brandeis University, Waltham, MA 02454 9110, USA
    Exp Brain Res 148:266-71. 2003
    ..We expect that with longer exposure periods and with active generation of body sway subjects would both adapt to rotation and exhibit post-rotary aftereffects...
  28. ncbi request reprint Rapid adaptation of torso pointing movements to perturbations of the base of support
    Todd E Hudson
    Psychology Department, Center for Neural Science, New York University, NY 10003, USA
    Exp Brain Res 165:283-93. 2005
    ..The adaptive system producing such robust torso regulation provides a critical basis for control of arm, head, and eye movements...
  29. ncbi request reprint Time course of haptic stabilization of posture
    Ely Rabin
    New York College of Osteopathic Medicine of New York Institute of Technology, Northern Boulevard, Old Westbury, NY 11568 8000, USA
    Exp Brain Res 170:122-6. 2006
    ..We conclude that the fingertip can serve as a sensory-motor probe that is stabilized nearly immediately on contact with a surface and that from the moment of contact the fingertip contributes sensory signals used to control sway...

Research Grants7

  1. Interaction torques in voluntary turning and reaching
    James Lackner; Fiscal Year: 2007
    ..The results should have broad significance for normal movement control as well as for disorders of movement control. ..
  2. Interaction torques in voluntary turning and reaching
    James R Lackner; Fiscal Year: 2010
    ..The experimental findings and analyses will provide a comprehensive evaluation of the role of feedforward predictive mechanisms in the control of reaching movements involving body rotation. ..