Plans for Grasping Objects

Rosenbaum, David A.; Cohen, Rajal G.; Meulenbroek, Ruud G. J.; Vaughan, Jonathan

doi:10.1007/0-387-28287-4_2

Cited by 48 publications

(53 citation statements)

References 34 publications

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“…In contrast, if the waiter just moves the same glass from one end of the counter to another, he will grasp it in thumb-up hand position. Obviously, the choice of the first motor act is adapted with respect to the goal of the second movement, enabling a comfortable end state (Rosenbaum et al, 2006). Similar to those daily life observations, experiments with various motion tasks showed that movement parameters like hand shaping, peak aperture, and reaching duration of an initial reaching and grasping submovement are affected in various ways by the movement that follows (Ansuini et al, 2006(Ansuini et al, , 2008Armbrüster & Spijkers, 2006).…”

Section: Sequencing and Coarticulation In Limb Movementsmentioning

confidence: 54%

Limb versus Speech Motor Control: A Conceptual Review

Britta¹,

Fuchs²,

Perrier³

et al. 2011

Motor Control

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This paper presents a comparative conceptual review of speech and limb motor control.Speech is essentially cognitive in nature and constrained by the rules of language, while limb movement is often oriented to physical objects. We discuss the issue of intrinsic vs. extrinsic variables underlying the representations of motor goals as well as whether motor goals specify terminal postures or entire trajectories. Timing and coordination is recognized as an area of strong interchange between the two domains. Although coordination among different motor acts within a sequence and co-articulation are central to speech motor control, they have received only limited attention in manipulatory movements. The biomechanics of speech production is characterized by the presence of soft tissue, a variable number of degrees of freedom, and the challenges of high rates of production, while limb movements deal more typically with inertial constraints from manipulated objects. This comparative review thus leads us to identify many strands of thinking that are shared across the two domains, but also points us to issues on which approaches in the two domains differ. We conclude that conceptual interchange between the fields of limb and speech motor control has been useful in the past and promises continued benefit.

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Section: Sequencing and Coarticulation In Limb Movementsmentioning

confidence: 54%

Limb versus Speech Motor Control: A Conceptual Review

Britta¹,

Fuchs²,

Perrier³

et al. 2011

Motor Control

View full text Add to dashboard Cite

show abstract

“…Our results further clarify the nature of affordances automatically evoked by an object by showing that although action representations include information about object orientation, an additional constraint on the evocation of an affordance is the projected end-state of the object, given the intended hand posture (see also Rosenbaum et al, 2006). The failure to obtain priming for objects in certain orientations establishes that the conventional function of an object serves as a tacit context supplied by the actor.…”

Section: Discussionmentioning

confidence: 76%

“…Indeed, Rosenbaum, Cohen, Meulenbroek, and Vaughn (2006) reviewed considerable evidence showing that how an object is grasped does not depend merely on its immediate appearance, but also on the ultimate goal of the actor. Our claim is that even automatically evoked affordances may include anticipated effects of actions, based on repeated experience dealing with the conventional use of an object.…”

Section: Measuring Affordances To Objects In Canonical and Rotated Ormentioning

confidence: 99%

Priming of reach and grasp actions by handled objects.

Masson

Bub

Breuer

2011

Journal of Experimental Psychology: Human Perception and Perfor

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Pictures of handled objects such as a beer mug or frying pan are shown to prime speeded reach and grasp actions that are compatible with the object. To determine whether the evocation of motor affordances implied by this result is driven merely by the physical orientation of the object's handle as opposed to higher-level properties of the object, including its function, prime objects were presented either in an upright orientation or rotated 90°from upright. Rotated objects successfully primed hand actions that fit the object's new orientation (e.g., a frying pan rotated 90°so that its handle pointed downward primed a vertically oriented power grasp), but only when the required grasp was commensurate with the object's proper function. This constraint suggests that rotated objects evoke motor representations only when they afford the potential to be readily positioned for functional action.

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“…Several studies also showed a marked developmental trend for the end-state comfort eVect, with the eVect not taking hold until 9 years of age for typically developing children (Adalbjornsson, Fischman, & Rudisill, 2008;Thibaut & Toussaint, 2010;van Swieten et al, 2010), whereas the end-state comfort eVect is compromised in children with autism (Hughes, 1996), in children with developmental coordination disorder (van Swieten et al, 2010), and in adults with cerebral palsy (Steenbergen, Hulstijn, & Dortmans, 2000). For reviews, see Rosenbaum (2010) and Rosenbaum, Cohen, Meulenbroek, and Vaughan (2006).…”

Section: Introductionmentioning

confidence: 99%

Prospective and retrospective effects in human motor control: planning grasps for object rotation and translation

Cohen

Rosenbaum

2010

Psychological Research

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People pick up objects in ways that reflect prospective as well as retrospective control. Prospective control is indicated by planning for end-state comfort such that people grasp a cylinder to be rotated or translated with a hand orientation or at a height that affords a comfortable final posture. Retrospective control is indicated when people reuse a remembered grasp rather than using a new grasp that would ensure end-state comfort. Here, we asked whether these manifestations of prospective and retrospective control co-occur. We did so by having healthy young-adult participants grasp a cylinder to rotate and translate it between a horizontal position and a vertical position at each of five heights. We found that participants planned for comfortable final hand orientations for first moves but relied on recall for subsequent hand orientations. The results suggest that motor planning is sensitive to computational as well as physical demands and that object rotation and translation are not dissociable features of motor control, at least as reflected in their contributions to grasp selection. The latter result is consistent with the hypothesis that movements constitute holistic body changes between successive goal postures.

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Plans for Grasping Objects

Cited by 48 publications

References 34 publications

Limb versus Speech Motor Control: A Conceptual Review

Limb versus Speech Motor Control: A Conceptual Review

Priming of reach and grasp actions by handled objects.

Prospective and retrospective effects in human motor control: planning grasps for object rotation and translation

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