Journal ArticleDOI
Posture-based motion planning: applications to grasping.
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TLDR
A model of motion planning instantiated for grasping that combines instance retrieval (recall of stored postures) and instance generation (generation of new postures and movements to them) to simulate flexible prehension.Abstract:
This article describes a model of motion planning instantiated for grasping. According to the model, one of the most important aspects of motion planning is establishing a constraint hierarchy - a set of prioritized requirements defining the task to be performed. For grasping, constraints include avoiding collisions with the to-be-grasped objects and minimizing movement-related effort. These and other constraints are combined with instant retrieval (recall of stored postures) and instance generation (generation of new postures and movements to them) to simulate flexible prehension. Dynamic deadline setting is used to regulate termination of instance generation, and performance of more than one movement at a time with a single effector is used to permit obstacle avoidance. Old and new data are accounted for with the model.read more
Citations
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Journal ArticleDOI
The Theory of Event Coding (TEC): a framework for perception and action planning.
TL;DR: A new framework for a more adequate theoretical treatment of perception and action planning is proposed, in which perceptual contents and action plans are coded in a common representational medium by feature codes with distal reference, showing that the main assumptions are well supported by the data.
Journal ArticleDOI
The bliss (not the problem) of motor abundance (not redundancy).
TL;DR: Large amounts of “good variance”—variance in the space of elements that has no effect on the overall performance—have been documented across a variety of natural actions, which support the view that there is no problem of motor redundancy; there is bliss of motor abundance.
Journal ArticleDOI
Statistical decision theory and the selection of rapid, goal-directed movements
TL;DR: Two experiments that test the range of applicability of a movement planning model (MEGaMove) based on statistical decision theory by attempting to earn money by rapidly touching a green target region on a computer screen while avoiding nearby red penalty regions.
Journal ArticleDOI
Cognition, action, and object manipulation.
David A. Rosenbaum,Kate M. Chapman,Matthias Weigelt,Daniel J. Weiss,Robrecht P. R. D. van der Wel +4 more
TL;DR: Differential grasping, the tendency to grasp objects differently depending on what one plans to do with the objects, is reviewed, pointing to rich connections between cognition and action as revealed through the study of object manipulation.
Journal ArticleDOI
Where grasps are made reveals how grasps are planned: generation and recall of motor plans
TL;DR: The pattern of grasp heights in successive transports was consistent with the view that participants generated a plan the first time they moved the cylinder between two points, and that they subsequently recalled what they had done before, making small adjustments to that recalled plan.
References
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Journal ArticleDOI
A Behavioral Model of Rational Choice
TL;DR: In this article, a model for the description of rational choice by organisms of limited computational ability is proposed, and the model is used to describe rational choice in organisms with limited computational abilities.
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TL;DR: In this paper, the authors make a distinction between simple temporal displacements in extension due to the repetition of primitive processes on the occasion of new problems analogous to old ones, and the temporal displacement in comprehension due to a transition from one plane of activity to another; that is, from the plane of action to that of representation.
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