 |
|||||
|
|||||
|
|||||
|
|||||
|
|||||
Previous Article | Next Article
The Journal of Neuroscience, October 15, 1998, 18(20):8423-8435
Short-Term Memory for Reaching to Visual Targets: Psychophysical Evidence for Body-Centered Reference Frames
J. McIntyre, F. Stratta, and F. Lacquaniti Human Physiology Section, Scientific Institute Santa Lucia, National Research Council and the University of Tor Vergata, 00179 Rome, Italy
Pointing to a remembered visual target involves the transformation of visual information into an appropriate motor output, with a passage through short-term memory storage. In an attempt to identify the reference frames used to represent the target position during the memory period, we measured errors in pointing to remembered three-dimensional (3D) targets.
Subjects pointed after a fixed delay to remembered targets distributed within a 22 mm radius volume. Conditions varied in terms of lighting (dim light or total darkness), delay duration (0.5, 5.0, and 8.0 sec), effector hand (left or right), and workspace location. Pointing errors were quantified by 3D constant and variable errors and by a novel measure of local distortion in the mapping from target to endpoint positions.
The orientation of variable errors differed significantly between light and dark conditions. Increasing the memory delay in darkness evoked a reorientation of variable errors, whereas in the light, the viewer-centered variability changed only in magnitude. Local distortion measurements revealed an anisotropic contraction of endpoint positions toward an "average" response along an axis that points between the eyes and the effector arm. This local contraction was present in both lighting conditions. The magnitude of the contraction remained constant for the two memory delays in the light but increased significantly for the longer delays in darkness. These data argue for the separate storage of distance and direction information within short-term memory, in a reference frame tied to the eyes and the effector arm.
Key words: sensorimotor transformations; reference frames; short-term memory; reaching; constant error; variable error; local distortion
Copyright © 1998 Society for Neuroscience 0270-6474/98/18208423-13$05.00/0
This article has been cited by other articles:
M. Vesia, X. Yan, D. Y. Henriques, L. E. Sergio, and J. D. Crawford
Transcranial Magnetic Stimulation Over Human Dorsal-Lateral Posterior Parietal Cortex Disrupts Integration of Hand Position Signals Into the Reach Plan
J Neurophysiol, October 1, 2008; 100(4): 2005 - 2014.
[Abstract] [Full Text] [PDF]
J. R. Flanagan, Y. Terao, and R. S. Johansson
Gaze Behavior When Reaching to Remembered Targets
J Neurophysiol, September 1, 2008; 100(3): 1533 - 1543.
[Abstract] [Full Text] [PDF]
G. U. Sorrento and D. Y. P. Henriques
Reference Frame Conversions for Repeated Arm Movements
J Neurophysiol, June 1, 2008; 99(6): 2968 - 2984.
[Abstract] [Full Text] [PDF]
L. Verhagen, H. C. Dijkerman, M. J. Grol, and I. Toni
Perceptuo-Motor Interactions during Prehension Movements
J. Neurosci., April 30, 2008; 28(18): 4726 - 4735.
[Abstract] [Full Text] [PDF]
C. Ghez, R. Scheidt, and H. Heijink
Different Learned Coordinate Frames for Planning Trajectories and Final Positions in Reaching
J Neurophysiol, December 1, 2007; 98(6): 3614 - 3626.
[Abstract] [Full Text] [PDF]
P.-M. Bernier, G. M. Gauthier, and J. Blouin
Evidence for Distinct, Differentially Adaptable Sensorimotor Transformations for Reaches to Visual and Proprioceptive Targets
J Neurophysiol, September 1, 2007; 98(3): 1815 - 1819.
[Abstract] [Full Text] [PDF]
S. M. Beurze, S. Van Pelt, and W. P. Medendorp
Behavioral Reference Frames for Planning Human Reaching Movements
J Neurophysiol, July 1, 2006; 96(1): 352 - 362.
[Abstract] [Full Text] [PDF]
A. Z. Khan, L. Pisella, Y. Rossetti, A. Vighetto, and J. D. Crawford
Impairment of Gaze-centered Updating of Reach Targets in Bilateral Parietal-Occipital Damaged Patients
Cereb Cortex, October 1, 2005; 15(10): 1547 - 1560.
[Abstract] [Full Text] [PDF]
P. Vindras, M. Desmurget, and P. Viviani
Error Parsing in Visuomotor Pointing Reveals Independent Processing of Amplitude and Direction
J Neurophysiol, August 1, 2005; 94(2): 1212 - 1224.
[Abstract] [Full Text] [PDF]
D. Y. P. Henriques and J. F. Soechting
Approaches to the Study of Haptic Sensing
J Neurophysiol, June 1, 2005; 93(6): 3036 - 3043.
[Abstract] [Full Text] [PDF]
T. Lam and V. Dietz
Transfer of Motor Performance in an Obstacle Avoidance Task to Different Walking Conditions
J Neurophysiol, October 1, 2004; 92(4): 2010 - 2016.
[Abstract] [Full Text] [PDF]
M. A. Admiraal, N.L.W. Keijsers, and C.C.A.M. Gielen
Gaze Affects Pointing Toward Remembered Visual Targets After a Self-Initiated Step
J Neurophysiol, October 1, 2004; 92(4): 2380 - 2393.
[Abstract] [Full Text] [PDF]
J. J. van den Dobbelsteen, E. Brenner, and J. B. J. Smeets
Body-Centered Visuomotor Adaptation
J Neurophysiol, July 1, 2004; 92(1): 416 - 423.
[Abstract] [Full Text] [PDF]
R. J. van Beers, P. Haggard, and D. M. Wolpert
The Role of Execution Noise in Movement Variability
J Neurophysiol, February 1, 2004; 91(2): 1050 - 1063.
[Abstract] [Full Text] [PDF]
M. A. Admiraal, N.L.W. Keijsers, and C.C.A.M. Gielen
Interaction Between Gaze and Pointing Toward Remembered Visual Targets
J Neurophysiol, October 1, 2003; 90(4): 2136 - 2148.
[Abstract] [Full Text] [PDF]
A. Battaglia-Mayer, R. Caminiti, F. Lacquaniti, and M. Zago
Multiple Levels of Representation of Reaching in the Parieto-frontal Network
Cereb Cortex, October 1, 2003; 13(10): 1009 - 1022.
[Abstract] [Full Text] [PDF]
Y. P. Ivanenko, R. Grasso, V. Macellari, and F. Lacquaniti
Control of Foot Trajectory in Human Locomotion: Role of Ground Contact Forces in Simulated Reduced Gravity
J Neurophysiol, June 1, 2002; 87(6): 3070 - 3089.
[Abstract] [Full Text] [PDF]
B. Marconi, A. Genovesio, A. Battaglia-Mayer, S. Ferraina, S. Squatrito, M. Molinari, F. Lacquaniti, and R. Caminiti
Eye-Hand Coordination during Reaching. I. Anatomical Relationships between Parietal and Frontal Cortex
Cereb Cortex, June 1, 2001; 11(6): 513 - 527.
[Abstract] [Full Text] [PDF]
A. Battaglia-Mayer, S. Ferraina, A. Genovesio, B. Marconi, S. Squatrito, M. Molinari, F. Lacquaniti, and R. Caminiti
Eye-Hand Coordination during Reaching. II. An Analysis of the Relationships between Visuomanual Signals in Parietal Cortex and Parieto-frontal Association Projections
Cereb Cortex, June 1, 2001; 11(6): 528 - 544.
[Abstract] [Full Text] [PDF]
A. Battaglia-Mayer, S. Ferraina, T. Mitsuda, B. Marconi, A. Genovesio, P. Onorati, F. Lacquaniti, and R. Caminiti
Early Coding of Reaching in the Parietooccipital Cortex
J Neurophysiol, April 1, 2000; 83(4): 2374 - 2391.
[Abstract] [Full Text] [PDF]
M. S. A. Graziano
Where is my arm? The relative role of vision and proprioception in the neuronal representation of limb position
PNAS, August 31, 1999; 96(18): 10418 - 10421.
[Abstract] [Full Text] [PDF]
|
|
|
|
 |
|