MARC details
| 000 -LEADER |
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| fixed length control field |
03419nam a22004817a 4500 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
210217s20212021 xxu||||| |||| 00| 0 eng d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER |
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| International Standard Serial Number |
0022-3077 |
| 024 ## - OTHER STANDARD IDENTIFIER |
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| Standard number or code |
10.1152/jn.00404.2020 [doi] |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
Ovid MEDLINE(R) |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) |
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| PMID |
33146065 |
| 245 ## - TITLE STATEMENT |
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| Title |
Perceived effort affects choice of limb and reaction time of movements. |
| 251 ## - Source |
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| Source |
Journal of Neurophysiology. 125(1):63-73, 2021 01 01. |
| 252 ## - Abbreviated Source |
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| Abbreviated source |
J Neurophysiol. 125(1):63-73, 2021 01 01. |
| 252 ## - Abbreviated Source |
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| Former abbreviated source |
J Neurophysiol. 125(1):63-73, 2021 Jan 01. |
| 253 ## - Journal Name |
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| Journal name |
Journal of neurophysiology |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
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| Year |
2021 |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
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| Manufacturer |
FY2021 |
| 265 ## - SOURCE FOR ACQUISITION/SUBSCRIPTION ADDRESS [OBSOLETE] |
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| Publication status |
ppublish |
| 266 ## - Date added to catalog |
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| Date added to catalog |
2021-02-17 |
| 268 ## - Previous citation |
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| -- |
Journal of Neurophysiology. 125(1):63-73, 2021 Jan 01. |
| 269 ## - Original dates |
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| Original fiscal year |
FY2021 |
| 501 ## - WITH NOTE |
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| Local holdings |
Available online from MWHC library: 1997 - present (after 1 year) |
| 520 ## - SUMMARY, ETC. |
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| Abstract |
The decision regarding which arm to use to perform a task reflects a complex process that can be influenced by many factors, including effort requirements of acquiring the goal. In this study, we considered a virtual reality environment in which people reached to a visual target in three-dimensional space. To vary the cost of reaching, we altered the visual feedback associated with motion of one arm but not the other. This altered the extent of motion that was required to reach, thus changing the effort required to acquire the goal. We then measured how that change in effort affected the decision regarding which arm to use, as well as the preparation time for the movement that ensued. As expected, with increased visual amplification of one arm (reduced effort to reach the goal), subjects increased the probability of choosing that arm. Surprisingly, however, the reaction times to start these movements were also reduced: despite constancy of the visual representation of the target, reaction times were shorter for movements with less effort. Thus, as the perceived effort associated with accomplishing a goal was reduced for a given limb, the decision-making process was biased toward use of that limb. Furthermore, movements that were perceived to be less effortful were performed with shorter reaction times. These results suggest that visual amplification can alter the perceived effort associated with using a limb, thus increasing frequency of use. This may provide a useful method to increase use of a limb during rehabilitation. NEW & NOTEWORTHY We report that visual amplification may serve as an effective means to alter the perceived effort associated with use of a limb. This method may provide an effective tool with which use of the affected limb can be encouraged noninvasively after neurological injury. |
| 546 ## - LANGUAGE NOTE |
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| Language note |
English |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
*Arm/ph [Physiology] |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
*Choice Behavior |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
*Movement |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Adult |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Female |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Functional Laterality |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Humans |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Male |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Reaction Time |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Visual Perception |
| 651 ## - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME |
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| Institution |
MedStar National Rehabilitation Network |
| 657 ## - INDEX TERM--FUNCTION |
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| Medline publication type |
Journal Article |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Local Authors |
Lee, Sang Wook |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Local Authors |
Lum, Peter S |
| 790 ## - Authors |
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| All authors |
Lee SW, Lum PS, Shadmehr R, Wang J |
| 856 ## - ELECTRONIC LOCATION AND ACCESS |
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| DOI |
<a href="https://dx.doi.org/10.1152/jn.00404.2020">https://dx.doi.org/10.1152/jn.00404.2020</a> |
| Public note |
https://dx.doi.org/10.1152/jn.00404.2020 |
| 858 ## - ORCID |
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| ORCID text |
Lum, Peter S |
| Orcid |
<a href="https://orcid.org/0000-0002-4735-6114">https://orcid.org/0000-0002-4735-6114</a> |
| Name |
https://orcid.org/0000-0002-4735-6114 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Journal Article |
| Item type description |
Article |
