The cost of moving with the left hand

Vaughan, Jonathan; Barany, Deborah A.; Rios, Tristan

doi:10.1007/s00221-012-3110-z

Cited by 9 publications

(8 citation statements)

References 41 publications

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“…The data in Experiment 3 reassured us that the kinds of movements studied here were indeed easier for the right hand than for the left, replicating previously reported right-versus-left hand differences in movement times (Flowers, 1975;Vaughan et al, 2012). However, we also found a larger effect of hand orientation.…”

Section: Discussionsupporting

confidence: 92%

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End-state comfort trumps handedness in object manipulation.

Coelho

Studenka

Rosenbaum

2014

Journal of Experimental Psychology: Human Perception and Perfor

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A goal of research on human perception and performance is to explore the relative importance of constraints shaping action selection. The present study concerned the relative importance of two constraints that have not been directly contrasted: (1) the tendency to grasp objects in ways that afford comfortable or easy-to-control final postures; and (2) the tendency to grasp objects with the dominant rather than the nondominant hand. We asked participants to reach out and grasp a horizontal rod whose left or right end was to be placed into a target after a 90° rotation. In one condition, we told participants which hand to use and let them choose an overhand or underhand initial grasp. In another condition, we told participants which grasp to use and let them choose either hand. Participants sacrificed hand preference to perform the task in a way that ensured a comfortable or easy to control thumb-up posture at the time of object placement, indicating that comfort trumped handedness. A second experiment confirmed that comfort was indeed higher for thumb-down postures than thumb-up postures. A third experiment confirmed that the choice data could be linked to objective performance differences. The results point to the importance of identifying constraint weightings for action selection and support an account of hand selection that ascribes hand preference to sensitivity to performance differences. The results do not support the hypothesis that hand preference simply reflects a bias to use the dominant hand.

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Section: Discussionsupporting

confidence: 92%

“…We expected differences between the left and right hands in this task because it has been shown that in right-handed participants, the right hand performs aiming movements more quickly than does the left hand (Flowers, 1975; Vaughan, Barany, & Rios, 2012). We also expected longer movement times for thumb-down moves than for thumb-up moves.…”

Section: Methodsmentioning

confidence: 99%

End-state comfort trumps handedness in object manipulation.

Coelho

Studenka

Rosenbaum

2014

Journal of Experimental Psychology: Human Perception and Perfor

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show abstract

“…Regarding the preferred and non-preferred hand performances, our results also agree with prior research by Woodworth [2], todor and doane [30], and Vaughan et al [16], by verifying greater precision and speed for the preferred hand on similar ids. Although task parameters slightly varied between hands, hampering between-hand comparisons, there was a clear performance superiority with the preferred hand (more St and faster Mt).…”

Section: Human Movementsupporting

confidence: 92%

“…Within this scenario, handedness is an essential factor that affects motor responses [15], as each hand can be considered as a different effector within the same individual, which interacts differently with the constraints imposed by a given motor task. For instance, Vaughan et al [16] analysed the impact of handedness during alternated discrete touching with a stylus in 2 side-by-side targets, aiming to perform as many touches as possible while still being accurate. these authors verified that responses with the preferred right hand were faster and more accurate, occurring in shorter movement time for tasks of similar difficulty, just as Woodworth [2] had presented long ago.…”

Section: Introductionmentioning

confidence: 99%

Imposing demands on precision influences the hands differently during alternated discrete touching

Marcori¹,

Monteiro²,

Okazaki³

2021

Hum Mov.

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Purpose. How demands of precision influence the performance during alternated discrete touching is not well established in the literature. Hence, we compared both hands performance during alternated touching, manipulating the precision demand. Methods. Overall, 23 right-handed adults participated in this study. the first task consisted of alternated touching with a pencil on both sides of a blank paper, performing as fast as possible, considering the first touch as reference for the next ones. Subsequently, touch dispersion and width were measured, and circular targets were drawn with those proportions. the second task consisted of performing as many hits as possible inside those targets. Apart from the delimitated target, increasing precision demand, the task parameters were equal. Results. Movement time increased and the number of touches decreased from the first to the second task. However, the preferred hand displayed greater reductions in performance. Conclusions. the perceptual constraint of adding a visual target affects motor control parameters in alternated touching, causing decrements in performance in both hands, but more evidently in the preferred right hand.

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“…That is, neurocognitive representations of objects should differ between individuals whose bodies cause them to interact with the objects in predictably different ways (e.g., between individuals with right- vs. left-hand dominance). Action execution with the non-dominant hand in the context of complex tasks has been associated with reliable performance costs in movement speed (Grosskopf & Kuhtz-Buschbeck, 2005; Vaughan, Barany, & Rios, 2012). Additionally, handedness has been shown to influence perception of object size, with graspable items placed in the dominant hand being judged as smaller than items placed in the non-dominant hand, even when apparent hand size is artificially manipulated (Linkenauger, Witt, & Proffitt, 2011).…”

Section: Effects Of Body-specific Experience On Object Knowledge Retrmentioning

confidence: 99%

Motor experience influences object knowledge.

Chrysikou¹,

Casasanto²,

Thompson-Schill³

2017

Journal of Experimental Psychology: General

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An object’s perceived readiness-for-action (e.g., its size, the degree of rotation from its canonical position, or the user’s viewpoint) can influence semantic knowledge retrieval. Yet, the organization of object knowledge may also be affected by body-specific sensorimotor experiences. Here, we investigated whether people’s history of performing motor actions with their hands influences the knowledge they store and retrieve about graspable objects. We compared object representations between healthy right- and left-handers (Experiment 1), and between unilateral stroke patients, whose motor experience was changed by impairment of either their right or left hand (Experiment 2). Participants saw pictures of graspable everyday items with the handles oriented toward either the left or right hand, and they generated the type of grasp they would employ (i.e., clench or pinch) when using each object, responding orally. In both experiments, hand dominance and object orientation interacted to predict response times. In Experiment 1, judgments were fastest when objects were oriented toward the right hand in right-handers, but not in left-handers. In Experiment 2, judgments were fastest when objects were oriented toward the left hand in patients who had lost the use of their right hand, even though these patients were right-handed prior to brain injury. Results suggest that at least some aspects of object knowledge are determined by motor experience, and can be changed by new patterns of motor experience. People with different bodily characteristics, who interact with objects in systematically different ways, form correspondingly different neurocognitive representations of the same common objects.

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The cost of moving with the left hand

Cited by 9 publications

References 41 publications

End-state comfort trumps handedness in object manipulation.

End-state comfort trumps handedness in object manipulation.

Imposing demands on precision influences the hands differently during alternated discrete touching

Motor experience influences object knowledge.

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