Motor learning of novel dynamics is not represented in a single global coordinate system: evaluation of mixed coordinate representations and local learning

Berniker, Max; Franklin, David W.; Flanagan, J. Randall; Wolpert, Daniel M.; Kording, Konrad

doi:10.1152/jn.00493.2013

Cited by 83 publications

(95 citation statements)

References 54 publications

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“…The multitude of processing strategies accounted for by C-SMB is consistent with the many indications that movement representations may be coded in very different ways, such as verbal, egocentric spatial, allocentric spatial, goal postures of effectors, and joint angles (Andresen & Marsolek, 2012;Bapi, Doya, & Harner, 2000;Berniker, Franklin, Flanagan, Wolpert, & Kording, 2013;De Kleine & Verwey, 2009;Hikosaka et al, 1999;Panzer, Gruetzmacher, Fries, Krueger, & Shea, 2011;Shea et al, 2011;Verwey & Abrahamse, 2012;Verwey et al, 2010). Indeed, recent sequencing studies with the flexionextension task (Kovacs, Muhlbauer, & Shea, 2009;Panzer et al, 2011), the serial RT task (Goschke & Bolte, 2012;Tubau et al, 2007), and with the discrete sequence production task (Verwey & Abrahamse, 2012;Verwey & Wright, 2014), all indicate that with practice several of these movement sequence representations develop concurrently (Berniker et al, 2013).…”

Section: Coding Movement Sequencessupporting

confidence: 72%

“…Indeed, recent sequencing studies with the flexionextension task (Kovacs, Muhlbauer, & Shea, 2009;Panzer et al, 2011), the serial RT task (Goschke & Bolte, 2012;Tubau et al, 2007), and with the discrete sequence production task (Verwey & Abrahamse, 2012;Verwey & Wright, 2014), all indicate that with practice several of these movement sequence representations develop concurrently (Berniker et al, 2013).…”

Section: Coding Movement Sequencesmentioning

confidence: 99%

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A cognitive framework for explaining serial processing and sequence execution strategies

2014

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Behavioral research has produced many taskspecific cognitive models that do not say much about the underlying information-processing architecture. Such an architecture is badly needed to better understand how cognitive neuroscience can benefit from existing cognitive models. This problem is especially pertinent in the domain of sequential behavior where behavioral research suggests a diversity of cognitive processes, processing modes and representations. Inspired by decades of reaction time (RT) research with the Additive Factors Method, the Psychological Refractory Period paradigm, and the Discrete Sequence Production task, we propose the Cognitive framework for Sequential Motor Behavior (C-SMB). We argue that C-SMB accounts for cognitive models developed for a range of sequential motor tasks (like those proposed by Keele et al., Psychological Review, 110(2), 316-339, 2003; Rosenbaum et al., Journal of Experimental Psychology: Human Perception and Performance, 9(1), 86-102, 1983, Journal of Memory and Language, 25, 710-725, 1986, Psychological Review, 102, 28-67, 1995 Schmidt, Psychological Review, 82(4), 225-260, 1975;Sternberg et al., 1978, Phonetica, 45, 177-197, 1988. C-SMB postulates that sequence execution can be controlled by a central processor using central-symbolic representations, and also by a motor processor using sequencespecific motor representations. On the basis of this framework, we present a classification of the sequence execution strategies that helps researchers to better understand the cognitive and neural underpinnings of serial movement behavior.

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Section: Coding Movement Sequencessupporting

confidence: 72%

Section: Coding Movement Sequencesmentioning

confidence: 99%

A cognitive framework for explaining serial processing and sequence execution strategies

2014

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“…With regard to novel force field learning, there is considerable evidence that sensorimotor adaptation is a form of local learning that does not generalize to very different circumstances (Berniker et al 2013(Berniker et al , 2014Donchin et al 2003;Gandolfo et al 1996;Krakauer et al 2000;Lackner and Dizio 1994;Ostry 2007, 2010;Thoroughman and Shadmehr 2000). These studies are in line with our finding that movement path errors during generalization were the same for the narrow and broad groups.…”

Section: Discussionsupporting

confidence: 89%

The effects of training breadth on motor generalization

Berniker

Mirzaei

Kording

2014

Journal of Neurophysiology

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“…In a recent force field adaptation study by Berniker et al (2014), patterns of generalisation could not be explained by representation in any single coordinate system when intralimb reaching was tested with different shoulder, elbow and wrist angles.…”

Section: Post Training Twitches In the Testing Posturementioning

confidence: 84%

“…However, more recent error-based learning studies, i.e. adaptation to force field or visuomotor perturbation, have suggested that motor learning could be represented in a combination of extrinsic and intrinsic coordinate frames (Berniker et al, 2014;Brayanov et al, 2012;Carroll, et al, 2014).…”

Section: Post Training Twitches In the Testing Posturementioning

confidence: 99%

Interhemispheric interactions associated with unilateral ballistic motor tasks

Chye¹

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The aim of this research was to enhance our understanding of the spatial reference frames in which movement is represented in the primary motor cortices of both hemispheres during unilateral ballistic actions. The broader goal was to reveal how the coordinate systems of movement representation influence the interactions between the two cerebral hemispheres which presumably underlie cross limb transfer of motor skill.The issue of reference frames may be critical for cross-limb interactions because definitions of space and movement often conflict for opposite limbs in intrinsicallyreferenced coordinate systems (e.g. muscle or joint-based coordinates) due to their mirror symmetry. This thesis describes a series of experiments to investigate the reference frames in which movement representations are shared bilaterally, and whether alignment of reference frames influences the transfer of performance to the untrained limb after unilateral ballistic training.There is increasing evidence that the primary motor cortex ipsilateral to the active limb is active during unilateral movement. Yet, the extent to which such activity represents functional details of movement with the ipsilateral limb, and the coordinates of any such representation, is unclear. Hence, Chapter 2 reports work aimed at understanding the timing and coordinates of interactions between the two motor cortices when movement with one hand is being prepared. Studying the time course of changes in twitch directions evoked by transcranial magnetic stimulation (TMS) enabled us to examine whether activity in the "resting" motor cortex functionally represents the impending movement, and the reference frame of any such representation. Our results showed that twitch directions in the resting limb shifted toward the impending direction of the active hand in a musclebased reference frame. Evident changes in TMS-evoked twitch parameters right before movement onset might be associated with decreases in interhemispheric inhibition and intracortical inhibition, brought about by the release of motor commands to the active limb.Use-dependent learning was previously reported to generalise according to extrinsic coordinates when posture changes were used to dissociate reference frames within the active limb, however it is unclear whether this form of learning generalises to the untrained limb. Chapter 3 assessed whether use-dependent bias in aiming performance occurred in the opposite untrained limb under postural manipulations that varied the extent to which spatial coordinates were aligned for the two limbs according to extrinsic, musclebased and midline reference frames. The results revealed that systematic bias occurred ii only when both limbs were oriented such that training and aiming targets were aligned according to all reference frames. The data suggest that aiming biases in the untrained limb after contralateral ballistic training are represented according to a combination of coordinate systems.In order to understand the role of reference frame conflicts in...

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Motor learning of novel dynamics is not represented in a single global coordinate system: evaluation of mixed coordinate representations and local learning

Cited by 83 publications

References 54 publications

A cognitive framework for explaining serial processing and sequence execution strategies

A cognitive framework for explaining serial processing and sequence execution strategies

The effects of training breadth on motor generalization

Interhemispheric interactions associated with unilateral ballistic motor tasks

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