The End-State Comfort Effect in Bimanual Grip Selection

The principle of contralateral organization of the visual and motor systems was exploited to investigate contributions of the cerebral hemispheres to the mental representation of prehension in healthy, right-handed human subjects. Graphically rendered dowels were presented to either the left or right visual field in a variety of different orientations, and times to determine whether an underhand or overhand grip would be preferred for engaging these stimuli were measured. Although no actual reaching movements were performed, a significant advantage in grip-selection time was found when information was presented to the cerebral hemisphere contralateral to the designated response hand. Results are consistent with the position that motor imagery recruits neurocognitive mechanisms involved in movement planning. More precisely, these findings indicate that processes within each cerebral hemisphere participate in mentally representing object-oriented actions of the contralateral hand.

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A Three-Stage Model for the Acquisition of Anticipatory Planning Skills for Grip Selection during Object Manipulation in Young Children

Frontiers in Psychology ◽

10.3389/fpsyg.2016.00958 ◽

2016 ◽

Vol 7 ◽

Cited By ~ 3

Author(s):

Kathrin Wunsch ◽

Matthias Weigelt

Keyword(s):

Young Children ◽

Object Manipulation ◽

Stage Model ◽

Grip Selection ◽

Anticipatory Planning

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Visually-guided Grip Selection for Soft-Hand Exoskeleton

10.1109/embc46164.2021.9629982 ◽

2021 ◽

Author(s):

Xingying Chen ◽

Simone Lohlein ◽

John Nassour ◽

Stefan K. Ehrlich ◽

Nicolas Berberich ◽

...

Keyword(s):

Visually Guided ◽

Grip Selection ◽

Hand Exoskeleton ◽

Selection For

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Static grip selection for robot-based automated assembly systems

Journal of Robotic Systems ◽

10.1002/rob.4620040602 ◽

1987 ◽

Vol 4 (6) ◽

pp. 687-717 ◽

Cited By ~ 6

Author(s):

Shaheen Ahmad ◽

John T. Feddema

Keyword(s):

Assembly Systems ◽

Automated Assembly ◽

Grip Selection ◽

Selection For

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Constraints on Grip-Selection: Minimizing Awkwardness

Perceptual and Motor Skills ◽

10.1177/003151259808600102 ◽

1998 ◽

Vol 86 (1) ◽

pp. 328-330 ◽

Cited By ~ 9

Author(s):

Mark G. Fischman

Keyword(s):

Present Experiment ◽

Horizontal Position ◽

Clear Preference ◽

Paper Towel ◽

Important Constraint ◽

Grip Selection ◽

Table Analysis ◽

Initial Choice ◽

Selection Of

In picking up and manipulating an object, the selection of an initial grip (overhand versus underhand) often depends on how comfortable the hand and arm will be at the end of the movement. This effect has been called “end-state comfort” and seems to be an important constraint in grip-selection. The present experiment further explored this effect by selecting a task that would ensure a comfortable ending position regardless of the initial choice of grip. 206 undergraduates picked up a cardboard paper-towel roll from a horizontal position and placed one end down on a table. Analysis showed a clear preference for the overhand grip, as 78% of the participants chose this grip. In addition, more women preferred the overhand grip than men. The findings indicate that people may be sensitive to minimizing awkwardness in both terminal and initial positions.

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