2015
DOI: 10.1371/journal.pone.0120432
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Predicting Object Size from Hand Kinematics: A Temporal Perspective

Abstract: Research on reach-to-grasp movements generally concentrates on kinematics values that are expression of maxima, in particular the maximum aperture of the hand and the peak of wrist velocity. These parameters provide a snapshot description of movement kinematics at a specific time point during reach, i.e., the maximum within a set of value, but do not allow to investigate how hand kinematics gradually conform to target properties. The present study was designed to extend the characterization of object size effe… Show more

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Cited by 54 publications
(68 citation statements)
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“…30, for a detailed description of the F local ). Within F local , we computed the following variables:…”
Section: Methodsmentioning
confidence: 99%
“…30, for a detailed description of the F local ). Within F local , we computed the following variables:…”
Section: Methodsmentioning
confidence: 99%
“…Thus, FDA-type F-score relies on the Euclidean distance between class centers to evaluate the difference between classes, and employs the trace of the covariance matrix to estimate the variance within one class. FDA-type F-score, as a simplified measure, avoids estimating a projection direction in multi-dimensional FDA, and has been successfully used in twoclass BCI and motor recognition studies for channel and feature selection [21,22,33,42].…”
Section: Fda-type F-scorementioning
confidence: 99%
“…FDA-type F-score is a simplified measure based on Fisher discriminant analysis (FDA) for measuring the discriminative power of a group of features. In our previous studies, we have successfully applied this criterion to seek the optimal channel subset for two-class BCIs [21] and to select the best kinematic feature group for two-class motor recognition [33]. Based on our preliminary work for two-class cases, here we extended the application of FDA-type F-score to multi-class cases using a one-versus-rest strategy.…”
Section: Introductionmentioning
confidence: 99%
“…Finally, these findings can also be considered from the perspective of theories postulating a role of the motor system in action prediction and inference [11,34]. The key concept in all these theories is that the same motor models employed during action execution also serve as the basis for action observation and prediction.…”
Section: Discussionmentioning
confidence: 99%
“…To provide a better characterization of the hand joint movements, the second set of variables was expressed with respect to a local frame of reference centered on the hand (i.e., F local ; see [11] for a detailed description of the F local ). Within F local , we computed the following variables:…”
Section: Experiments 1: Action Execution—methodsmentioning
confidence: 99%