scholarly journals Alternating prism exposure causes dual adaptation and generalization to a novel displacement

1993 ◽  
Vol 54 (2) ◽  
pp. 195-204 ◽  
Author(s):  
Robert B. Welch ◽  
Bruce Bridgeman ◽  
Sulekha Anand ◽  
Kaitlin E. Browman
Keyword(s):  
Prism Exposure ◽  
Dual Adaptation

scholarly journals Long-lasting aftereffect of brief prism exposure

1974 ◽  
Vol 15 (2) ◽  
pp. 399-400 ◽  
Author(s):  
Stuart T. Klapp ◽  
Sarah A. Nordell ◽  
Kathy C. Hoekenga ◽  
Carol B. Patton
Keyword(s):  
Prism Exposure

scholarly journals Timescales of motor memory formation in dual-adaptation

2020 ◽  
Vol 16 (10) ◽  
pp. e1008373
Author(s):  
Marion Forano ◽  
David W. Franklin
Keyword(s):  
Memory Formation ◽  
Motor Memory ◽  
Dual Adaptation

Speculations on a Model of Prism Adaptation

Perception ◽  
1974 ◽  
Vol 3 (4) ◽  
pp. 451-460 ◽  
Author(s):  
R B Welch
Keyword(s):  
Motor Learning ◽  
Corrective Feedback ◽  
Prism Adaptation ◽  
Prism Exposure ◽  
Visual Shift ◽  
Proprioceptive Shift ◽  
Negative Aftereffect ◽  
Corrective Response

Arguments and evidence are presented that prism adaptation results in a third end state in addition to the ‘traditional’ components of ‘proprioceptive shift’ and ‘visual shift’. That is, under certain conditions (most importantly, ones involving error-corrective feedback), exposure to prism-displaced vision induces a motor-learning component, referred to here as an ‘assimilated corrective response’. Thus the postexposure error in target pointing, the ‘negative aftereffect’, is postulated to be the algebraic sum of proprioceptive shift, visual shift, and an assimilated corrective response—at least in certain situations. Support for the existence of this third component as a form of learning is seen in the fact that it occurs primarily when prism exposure involves target-pointing experience, and that it is apparently subject to the effects of some ‘learning variables’.

Dual adaptation to sensory conflicts during whole-body rotations

2006 ◽  
Vol 1072 (1) ◽  
pp. 119-132 ◽  
Author(s):  
Iroise Dumontheil ◽  
Panagiota Panagiotaki ◽  
Alain Berthoz
Keyword(s):  
Whole Body ◽  
Dual Adaptation

Three timescales in prism adaptation

2015 ◽  
Vol 113 (1) ◽  
pp. 328-338 ◽  
Author(s):  
Masato Inoue ◽  
Motoaki Uchimura ◽  
Ayaka Karibe ◽  
Jacinta O'Shea ◽  
Yves Rossetti ◽  
...  
Keyword(s):  
Visual Feedback ◽  
Learning System ◽  
Prism Adaptation ◽  
State Model ◽  
Prism Exposure ◽  
The Difference ◽  
Three State Model ◽  
Two State Model ◽  
Adaptation Task ◽  
Plos Biol

It has been proposed that motor adaptation depends on at least two learning systems, one that learns fast but with poor retention and another that learns slowly but with better retention (Smith MA, Ghazizadeh A, Shadmehr R. PLoS Biol 4: e179, 2006). This two-state model has been shown to account for a range of behavior in the force field adaptation task. In the present study, we examined whether such a two-state model could also account for behavior arising from adaptation to a prismatic displacement of the visual field. We first confirmed that an “adaptation rebound,” a critical prediction of the two-state model, occurred when visual feedback was deprived after an adaptation-extinction episode. We then examined the speed of decay of the prism aftereffect (without any visual feedback) after repetitions of 30, 150, and 500 trials of prism exposure. The speed of decay decreased with the number of exposure trials, a phenomenon that was best explained by assuming an “ultraslow” system, in addition to the fast and slow systems. Finally, we compared retention of aftereffects 24 h after 150 or 500 trials of exposure: retention was significantly greater after 500 than 150 trials. This difference in retention could not be explained by the two-state model but was well explained by the three-state model as arising from the difference in the amount of adaptation of the “ultraslow process.” These results suggest that there are not only fast and slow systems but also an ultraslow learning system in prism adaptation that is activated by prolonged prism exposure of 150–500 trials.

scholarly journals Reciprocal Kinematic Control: using human-robot dual adaptation to control upper limb assistive devices

2019 ◽  
Author(s):  
M Legrand ◽  
◽  
E de Montalivet ◽  
F Richer ◽  
N Jarrasse ◽  
...  
Keyword(s):  
Upper Limb ◽  
Assistive Devices ◽  
Kinematic Control ◽  
Dual Adaptation
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