Manual tracking enhances smooth pursuit eye movements
Niehorster, Diederick C LU
; Siu, Wilfred W. F.
and Li, Li
(2015)
In Journal of Vision
15(15).
- Abstract
- Previous studies have reported that concurrent manual tracking enhances smooth pursuit eye movements only when tracking a self-driven or a predictable moving target. Here, we used a control-theoretic approach to examine whether concurrent manual tracking enhances smooth pursuit of an unpredictable moving target. In the eye-hand tracking condition, participants used their eyes to track a Gaussian target that moved randomly along a horizontal axis. In the meantime, they used their dominant hand to move a mouse to control the horizontal movement of a Gaussian cursor to vertically align it with the target. In the eye-alone tracking condition, the target and cursor positions recorded in the eye-hand tracking condition were replayed, and... (More)
- Previous studies have reported that concurrent manual tracking enhances smooth pursuit eye movements only when tracking a self-driven or a predictable moving target. Here, we used a control-theoretic approach to examine whether concurrent manual tracking enhances smooth pursuit of an unpredictable moving target. In the eye-hand tracking condition, participants used their eyes to track a Gaussian target that moved randomly along a horizontal axis. In the meantime, they used their dominant hand to move a mouse to control the horizontal movement of a Gaussian cursor to vertically align it with the target. In the eye-alone tracking condition, the target and cursor positions recorded in the eye-hand tracking condition were replayed, and participants only performed eye tracking of the target. Catch-up saccades were identified and removed from the recorded eye movements, allowing for a frequency-response analysis of the smooth pursuit response to unpredictable target motion. We found that the overall smooth pursuit gain was higher and the number of catch-up saccades made was less when eye tracking was accompanied by manual tracking than when not. We conclude that concurrent manual tracking enhances smooth pursuit. This enhancement is a fundamental property of eye-hand coordination that occurs regardless of the predictability of the target motion. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8310325
- author
- Niehorster, Diederick C
LU
; Siu, Wilfred W. F.
and Li, Li
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Vision
- volume
- 15
- issue
- 15
- article number
- 11
- publisher
- Association for Research in Vision and Ophthalmology Inc.
- external identifiers
-
- scopus:84950132508
- pmid:26605840
- ISSN
- 1534-7362
- DOI
- 10.1167/15.15.11
- language
- English
- LU publication?
- no
- id
- b4a510ec-4f5b-4a06-92cf-2efde4754080 (old id 8310325)
- date added to LUP
- 2016-04-01 13:35:19
- date last changed
- 2022-02-19 06:17:57
@article{b4a510ec-4f5b-4a06-92cf-2efde4754080,
abstract = {{Previous studies have reported that concurrent manual tracking enhances smooth pursuit eye movements only when tracking a self-driven or a predictable moving target. Here, we used a control-theoretic approach to examine whether concurrent manual tracking enhances smooth pursuit of an unpredictable moving target. In the eye-hand tracking condition, participants used their eyes to track a Gaussian target that moved randomly along a horizontal axis. In the meantime, they used their dominant hand to move a mouse to control the horizontal movement of a Gaussian cursor to vertically align it with the target. In the eye-alone tracking condition, the target and cursor positions recorded in the eye-hand tracking condition were replayed, and participants only performed eye tracking of the target. Catch-up saccades were identified and removed from the recorded eye movements, allowing for a frequency-response analysis of the smooth pursuit response to unpredictable target motion. We found that the overall smooth pursuit gain was higher and the number of catch-up saccades made was less when eye tracking was accompanied by manual tracking than when not. We conclude that concurrent manual tracking enhances smooth pursuit. This enhancement is a fundamental property of eye-hand coordination that occurs regardless of the predictability of the target motion.}},
author = {{Niehorster, Diederick C and Siu, Wilfred W. F. and Li, Li}},
issn = {{1534-7362}},
language = {{eng}},
number = {{15}},
publisher = {{Association for Research in Vision and Ophthalmology Inc.}},
series = {{Journal of Vision}},
title = {{Manual tracking enhances smooth pursuit eye movements}},
url = {{http://dx.doi.org/10.1167/15.15.11}},
doi = {{10.1167/15.15.11}},
volume = {{15}},
year = {{2015}},
}