Intermanual transfer of sensorimotor memory for grip force when lifting objects: The role of wrist angulation

Bensmaïl, Djamel; Sarfeld, Anna-Sophia; Fink, Gereon R.; Nowak, Dennis A.

doi:10.1016/j.clinph.2009.11.010

Cited by 9 publications

(6 citation statements)

References 29 publications

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“…Motor learning is a set of internal processes that cannot be measured directly, but is instead inferred based on behavior (Schmidt & Lee, 1999; Shumway-Cook & Woollacott, 2007). Behavioral changes in components of naturalistic movement, like point-to-point reaching (Kluzik, Diedrichsen, Shadmehr, & Bastian, 2008; Krakauer, et al, 2000; Mattar & Ostry, 2010; Pearson, Krakauer, & Mazzoni, 2010; Pennel, Coello, & Orliaguet, 2002; Seidler, 2007; Shadmehr & Mussa-Ivaldi, 1994) or grasping (Albert, Santello, & Gordon, 2009; Bensmail, Sarfeld, Fink, & Nowak, 2010; Camus, Ragert, Vandermeeren, & Cohen, 2009; Liang et al, 2007; Parikh & Cole, 2011; Weigelt & Bock, 2010) underscore the nervous system’s ability to transfer learning, but little work has investigated transfer between more complex, functional tasks. This proof-of-principle study offers the rationale of a new approach for probing changes in motor learning due to transfer that can be applied to a wider range of motor tasks than that which has been tested in previous studies of motor adaptation.…”

Section: Discussionmentioning

confidence: 99%

Using Dual Tasks to Test Immediate Transfer of Training Between Naturalistic Movements: A Proof-of-Principle Study

Schaefer

Lang

2012

Journal of Motor Behavior

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Theories of motor learning predict that training a movement reduces the amount of attention needed for its performance (i.e. more automatic). If training one movement transfers, then the amount of attention needed for performing a second movement should also be reduced, as measured under dual task conditions. The purpose of this study was to test whether dual task paradigms are feasible for detecting transfer of training between two naturalistic movements. Immediately following motor training, subjects improved performance of a second untrained movement under both single and dual task conditions. Subjects with no training did not. Improved performance in the untrained movement was likely due to transfer, and suggests that dual tasks may be feasible for detecting transfer between naturalistic actions.

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Section: Discussionmentioning

confidence: 99%

Using Dual Tasks to Test Immediate Transfer of Training Between Naturalistic Movements: A Proof-of-Principle Study

Schaefer

Lang

2012

Journal of Motor Behavior

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“…Many studies have supported the concept of an internal representation of object properties that can be utilized to predictively scale grip forces (Johansson and Westling, 1988; Flanagan and Wing 1997; Flanagan et al, 2006) for grasping and lifting objects; the basis of these internal representations may be mechanical properties of the object such as weight information (Gordon et al, 1994; Chang et al, 2008) or an internal sense of effort defined by previous forces used to manipulate the object (Bensmail et al, 2009, 2010; Quaney et al, 2003). Regardless of what was encoded, there is also support for the concept of an internal model formed in memory that can be updated by comparing actual somatosensory feedback with the expected somatosensory feedback (Nowak et al, 2004; Bensmail et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…Regardless of what was encoded, there is also support for the concept of an internal model formed in memory that can be updated by comparing actual somatosensory feedback with the expected somatosensory feedback (Nowak et al, 2004; Bensmail et al, 2010). Matching hand postures in the absence of vision would then occur by matching somatosensory information from the grasping hand to guide control of the matching hand.…”

Section: Discussionmentioning

confidence: 99%

Somatosensory feedback refines the perception of hand shape with respect to external constraints

Winges¹

2015

Neuroscience

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Motor commands issued by the CNS are based upon memories of past experiences with similar objects, the current state of the hand and arm postures, and sensory input. Thus widespread somatosensory information is available to form precise representations of hand shape on which to base motor commands to match a desired posture or movement. The aim of this study was to examine the extent to which somatosensory information reflecting external influences on independent finger movement is incorporated into the perception of hand shape driving the motor command. To address this issue, a matching task was performed while pairs of fingers in the grasping hand were constrained to move in tandem when grasping familiar objects. The hypothesis was that motor commands would be driven by comparison of the online sensory information from the matching hand to a desired somatosensory state determined by the current somatosensory input from the grasping hand. The results demonstrated that multi-muscle patterns of activation and hand postures were altered with respect to the external constraint on independent finger movement. A secondary aim of this study was to examine the influence of sensory information on the structure of the multi-muscle patterns. The hypothesis was that the same synergies (patterns of activation across muscles) would be used to complete the task but would be rescaled with respect to condition. The results demonstrated that rescaling the patterns of multi-muscle activity from the unconstrained condition could not equivalently represent those from the constrained conditions. Thus it appears that external restriction of independent finger movement was signaled by somatosensory feedback and incorporated into the desired state driving the motor command resulting in selective activation of groups of muscles.

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“…Another well-established concept is the hypothesis that an internal model is formed in memory, and it is apparently updated by comparing an efference copy signal related to the expected somatosensory feedback with the actual somatosensory feeback (Nowak et al, 2004; Bensmail et al, 2010). The inverse internal model, by definition, stores mechanical parameters such as the inertia of hand-held objects (Flanders, 2011).…”

Section: Discussionmentioning

confidence: 99%

Coordination of Hand Shape

Pesyna¹,

Pundi²,

Flanders³

2011

J. Neurosci.

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The neural control of hand movement involves coordination of the sensory, motor and memory systems. Recent studies have documented the motor coordinates for hand shape, but less is known about the corresponding patterns of somatosensory activity. To initiate this line of investigation, the present study characterized the sense of hand shape by evaluating the influence of differences in the amount of grasping or twisting force, and differences in forearm orientation. Human subjects were asked to use the left hand to report the perceived shape of the right hand. In Experiment 1, six commonly grasped items were arranged on the table in front of the subject: bottle, doorknob, egg, notebook, carton, pan. With eyes closed, subjects used the right hand to lightly touch, forcefully support or imagine holding each object, while 15 joint angles were measured in each hand with a pair of wired gloves. The forces introduced by supporting or twisting did not influence the perceptual report of hand shape, but for most objects, the report was distorted in a consistent manner by differences in forearm orientation. Subjects appeared to adjust the intrinsic joint angles of the left hand, as well as the left wrist posture, so as to maintain the imagined object in its proper spatial orientation. In a second experiment, this result was largely replicated with unfamiliar objects. Thus somatosensory and motor information appear to be coordinated in an object-based, spatial coordinate system, sensitive to orientation relative to gravitational forces, but invariant to grasp forcefulness.

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Intermanual transfer of sensorimotor memory for grip force when lifting objects: The role of wrist angulation

Cited by 9 publications

References 29 publications

Using Dual Tasks to Test Immediate Transfer of Training Between Naturalistic Movements: A Proof-of-Principle Study

Using Dual Tasks to Test Immediate Transfer of Training Between Naturalistic Movements: A Proof-of-Principle Study

Somatosensory feedback refines the perception of hand shape with respect to external constraints

Coordination of Hand Shape

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