Flipping the stimulus: Effects on scanpath coherence?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081740%3A_____%2F17%3A00478406" target="_blank" >RIV/68081740:_____/17:00478406 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/17:10337624
Result on the web
<a href="http://dx.doi.org/10.3758/s13428-016-0708-2" target="_blank" >http://dx.doi.org/10.3758/s13428-016-0708-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3758/s13428-016-0708-2" target="_blank" >10.3758/s13428-016-0708-2</a>
Alternative languages
Result language
angličtina
Original language name
Flipping the stimulus: Effects on scanpath coherence?
Original language description
In experiments investigating dynamic tasks, it is often useful to examine eye movement scan patterns. We can present trials repeatedly and compute within-subjects/conditions similarity in order to distinguish between signal and noise in gaze data. To avoid obvious repetitions of trials, filler trials must be added to the experimental protocol, resulting in long experiments. Alternatively, trials can be modified to reduce the chances that the participant will notice the repetition, while avoiding significant changes in the scan patterns. In tasks in which the stimuli can be geometrically transformed without any loss of meaning, flipping the stimuli around either of the axes represents a candidate modification. In this study, we examined whether flipping of stimulus object trajectories around the x- and y-axes resulted in comparable scan patterns in a multiple object tracking task. We developed two new strategies for the statistical comparison of similarity between two groups of scan patterns, and then tested those strategies on artificial data. Our results suggest that although the scan patterns in flipped trials differ significantly from those in the original trials, this difference is small (as little as a 13 % increase of overall distance). Therefore, researchers could use geometric transformations to test more complex hypotheses regarding scan pattern coherence while retaining the same duration for experiments.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
50103 - Cognitive sciences
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Behavior Research Methods
ISSN
1554-351X
e-ISSN
—
Volume of the periodical
49
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
382-393
UT code for WoS article
000397198300027
EID of the result in the Scopus database
2-s2.0-84959574012