Simultaneous adaptation and switching for two viscous force fields

Satomi Hirai, Rieko Osu, Toshinori Yoshioka, Mitsuo Kawato

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, two different viscous force fields are generated by using a PFM (parallel link direct-drive air-magnet floating manipulandum), and the responding human learning process for multi-joint reaching motion is observed. In this experiment, the subject is given a certain cue for the force field. The cues are provided as follows: (1) audiovisual cue (a color and a peep sound corresponding to the force field, and a feather pattern representing the direction and magnitude of the force) and (2) movement cue (two trials are defined as a set, and the first movement is used as the cue). The task of the experiment is to learn the movement in force fields which are switched at random. Whichever cue (1) or (2) is used, there is a tendency that the area error from the desired straight trajectory decreases with an increasing number of trials. It is also observed that when the force field is eliminated at random after learning, a marked aftereffect arises in the group to which the audiovisual cue is given. The aftereffect is also observed in the group to which the movement cue is given, but is not as marked as in the group to which the audiovisual cue is given. The above results suggest that the internal models for two different viscous force fields can be acquired simultaneously without time separation by providing an appropriate cue to indicate the force field and learning in the environment in which the force field is switched at random.

Original languageEnglish
Pages (from-to)29-39
Number of pages11
JournalElectronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume89
Issue number7
DOIs
Publication statusPublished - 2006 Jul
Externally publishedYes

Fingerprint

cues
field theory (physics)
Magnets
Experiments
Trajectories
Acoustic waves
Color
learning
Air
pulse frequency modulation
floating
tendencies
magnets
trajectories
color
acoustics
air

Keywords

  • Cue
  • MOSAIC model
  • Movement learning
  • Reaching motion
  • Viscous force field

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Simultaneous adaptation and switching for two viscous force fields. / Hirai, Satomi; Osu, Rieko; Yoshioka, Toshinori; Kawato, Mitsuo.

In: Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi), Vol. 89, No. 7, 07.2006, p. 29-39.

Research output: Contribution to journalArticle

@article{d1db70cdcbaf4ccda48856c3ba2a145c,
title = "Simultaneous adaptation and switching for two viscous force fields",
abstract = "In this study, two different viscous force fields are generated by using a PFM (parallel link direct-drive air-magnet floating manipulandum), and the responding human learning process for multi-joint reaching motion is observed. In this experiment, the subject is given a certain cue for the force field. The cues are provided as follows: (1) audiovisual cue (a color and a peep sound corresponding to the force field, and a feather pattern representing the direction and magnitude of the force) and (2) movement cue (two trials are defined as a set, and the first movement is used as the cue). The task of the experiment is to learn the movement in force fields which are switched at random. Whichever cue (1) or (2) is used, there is a tendency that the area error from the desired straight trajectory decreases with an increasing number of trials. It is also observed that when the force field is eliminated at random after learning, a marked aftereffect arises in the group to which the audiovisual cue is given. The aftereffect is also observed in the group to which the movement cue is given, but is not as marked as in the group to which the audiovisual cue is given. The above results suggest that the internal models for two different viscous force fields can be acquired simultaneously without time separation by providing an appropriate cue to indicate the force field and learning in the environment in which the force field is switched at random.",
keywords = "Cue, MOSAIC model, Movement learning, Reaching motion, Viscous force field",
author = "Satomi Hirai and Rieko Osu and Toshinori Yoshioka and Mitsuo Kawato",
year = "2006",
month = "7",
doi = "10.1002/ecjb.20279",
language = "English",
volume = "89",
pages = "29--39",
journal = "Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi)",
issn = "8756-663X",
publisher = "Scripta Technica",
number = "7",

}

TY - JOUR

T1 - Simultaneous adaptation and switching for two viscous force fields

AU - Hirai, Satomi

AU - Osu, Rieko

AU - Yoshioka, Toshinori

AU - Kawato, Mitsuo

PY - 2006/7

Y1 - 2006/7

N2 - In this study, two different viscous force fields are generated by using a PFM (parallel link direct-drive air-magnet floating manipulandum), and the responding human learning process for multi-joint reaching motion is observed. In this experiment, the subject is given a certain cue for the force field. The cues are provided as follows: (1) audiovisual cue (a color and a peep sound corresponding to the force field, and a feather pattern representing the direction and magnitude of the force) and (2) movement cue (two trials are defined as a set, and the first movement is used as the cue). The task of the experiment is to learn the movement in force fields which are switched at random. Whichever cue (1) or (2) is used, there is a tendency that the area error from the desired straight trajectory decreases with an increasing number of trials. It is also observed that when the force field is eliminated at random after learning, a marked aftereffect arises in the group to which the audiovisual cue is given. The aftereffect is also observed in the group to which the movement cue is given, but is not as marked as in the group to which the audiovisual cue is given. The above results suggest that the internal models for two different viscous force fields can be acquired simultaneously without time separation by providing an appropriate cue to indicate the force field and learning in the environment in which the force field is switched at random.

AB - In this study, two different viscous force fields are generated by using a PFM (parallel link direct-drive air-magnet floating manipulandum), and the responding human learning process for multi-joint reaching motion is observed. In this experiment, the subject is given a certain cue for the force field. The cues are provided as follows: (1) audiovisual cue (a color and a peep sound corresponding to the force field, and a feather pattern representing the direction and magnitude of the force) and (2) movement cue (two trials are defined as a set, and the first movement is used as the cue). The task of the experiment is to learn the movement in force fields which are switched at random. Whichever cue (1) or (2) is used, there is a tendency that the area error from the desired straight trajectory decreases with an increasing number of trials. It is also observed that when the force field is eliminated at random after learning, a marked aftereffect arises in the group to which the audiovisual cue is given. The aftereffect is also observed in the group to which the movement cue is given, but is not as marked as in the group to which the audiovisual cue is given. The above results suggest that the internal models for two different viscous force fields can be acquired simultaneously without time separation by providing an appropriate cue to indicate the force field and learning in the environment in which the force field is switched at random.

KW - Cue

KW - MOSAIC model

KW - Movement learning

KW - Reaching motion

KW - Viscous force field

UR - http://www.scopus.com/inward/record.url?scp=33746125389&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33746125389&partnerID=8YFLogxK

U2 - 10.1002/ecjb.20279

DO - 10.1002/ecjb.20279

M3 - Article

AN - SCOPUS:33746125389

VL - 89

SP - 29

EP - 39

JO - Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi)

JF - Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi)

SN - 8756-663X

IS - 7

ER -