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Searching for monocular microsaccades - a red Hering of modern eye trackers?

Nyström, Marcus LU ; Andersson, Richard LU ; Niehorster, Diederick C LU and Hooge, Ignace (2017) In Vision Research 140. p.44-54
Abstract

Despite early reports and the contemporary consensus on microsaccades as purely binocular phenomena, recent work has proposed not only the existence of monocular microsaccades, but also that they serve functional purposes. We take a critical look at the detection of monocular microsaccades from a signal perspective, using raw data and a state-of-the-art, video-based eye tracker. In agreement with previous work, monocular detections were present in all participants using a standard microsaccade detection algorithm. However, a closer look at the raw data invalidates the vast majority of monocular detections. These results again raise the question of the existence of monocular microsaccades, as well as the need for improved methods to... (More)

Despite early reports and the contemporary consensus on microsaccades as purely binocular phenomena, recent work has proposed not only the existence of monocular microsaccades, but also that they serve functional purposes. We take a critical look at the detection of monocular microsaccades from a signal perspective, using raw data and a state-of-the-art, video-based eye tracker. In agreement with previous work, monocular detections were present in all participants using a standard microsaccade detection algorithm. However, a closer look at the raw data invalidates the vast majority of monocular detections. These results again raise the question of the existence of monocular microsaccades, as well as the need for improved methods to study small eye movements recorded with video-based eye trackers.

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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Microsaccades, Monocular, Eye-tracker data
in
Vision Research
volume
140
pages
44 - 54
publisher
Elsevier
ISSN
1878-5646
DOI
10.1016/j.visres.2017.07.012
language
English
LU publication?
yes
id
fe8c5820-564f-466e-b783-9466fc90bbdb
date added to LUP
2017-08-26 22:02:54
date last changed
2017-08-30 11:05:12
@article{fe8c5820-564f-466e-b783-9466fc90bbdb,
  abstract     = {<p>Despite early reports and the contemporary consensus on microsaccades as purely binocular phenomena, recent work has proposed not only the existence of monocular microsaccades, but also that they serve functional purposes. We take a critical look at the detection of monocular microsaccades from a signal perspective, using raw data and a state-of-the-art, video-based eye tracker. In agreement with previous work, monocular detections were present in all participants using a standard microsaccade detection algorithm. However, a closer look at the raw data invalidates the vast majority of monocular detections. These results again raise the question of the existence of monocular microsaccades, as well as the need for improved methods to study small eye movements recorded with video-based eye trackers.</p>},
  author       = {Nyström, Marcus and Andersson, Richard and Niehorster, Diederick C and Hooge, Ignace},
  issn         = {1878-5646},
  keyword      = {Microsaccades, Monocular,Eye-tracker data},
  language     = {eng},
  month        = {08},
  pages        = {44--54},
  publisher    = {Elsevier},
  series       = {Vision Research},
  title        = {Searching for monocular microsaccades - a red Hering of modern eye trackers?},
  url          = {http://dx.doi.org/10.1016/j.visres.2017.07.012},
  volume       = {140},
  year         = {2017},
}