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Is human classification by experienced untrained observers a gold standard in fixation detection?

Hooge, Ignace; Niehorster, Diederick C LU ; Nyström, Marcus LU ; Andersson, Richard LU and Hessels, Roy S (2017) In Behavior Research Methods 140.
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, Fixation classification, Eye tracking, Human coder
in
Behavior Research Methods
volume
140
pages
18 pages
publisher
The Psychonomic Society
external identifiers
  • scopus:85031766293
ISSN
1554-3528
DOI
10.3758/s13428-017-0955-x
language
English
LU publication?
yes
id
b9ab30ff-f8d2-43b6-bd49-694314230766
date added to LUP
2017-10-24 08:55:32
date last changed
2018-01-07 12:23:27
@article{b9ab30ff-f8d2-43b6-bd49-694314230766,
  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       = {Hooge, Ignace and Niehorster, Diederick C and Nyström, Marcus and Andersson, Richard and Hessels, Roy S},
  issn         = {1554-3528},
  keyword      = {Microsaccades,Monocular,Eye-tracker data,Fixation classification,Eye tracking,Human coder},
  language     = {eng},
  month        = {10},
  pages        = {18},
  publisher    = {The Psychonomic Society},
  series       = {Behavior Research Methods},
  title        = {Is human classification by experienced untrained observers a gold standard in fixation detection?},
  url          = {http://dx.doi.org/10.3758/s13428-017-0955-x},
  volume       = {140},
  year         = {2017},
}