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Consistency of eye movements in MOT using horizontally flipped trials

SYSNO ASEP	0397030
Document Type	A - Abstract
R&D Document Type	Není vybrán druh dokumentu
Title	Consistency of eye movements in MOT using horizontally flipped trials
Author(s)	Děchtěrenko, F. (CZ) Lukavský, Jiří (PSU-E)_{RID, ORCID, SAI}
Source Title	Perception - ISSN 0301-0066 Roč. 42, Suppl (2013), s. 42-42
Number of pages	1 s.
Publication form	Online - E
Action	36th European Conference on Visual Perception
Event date	25.08.2013.-29.08.2013
VEvent location	Brémy
Country	DE - Germany
Event type	EUR
Language	eng - English
Country	NL - Netherlands
Keywords	eye movements ; symmetry ; consistency
Subject RIV	AN - Psychology
R&D Projects	GA13-28709S GA ČR - Czech Science Foundation (CSF)
Institutional support	PSU-E - RVO:68081740
UT WOS	000334901000132
Annotation	When measuring intra-subject variability of eye movements, we often need to present trials repeatedly. In this experiment we studied, if we can use horizontally flipped trajectories of tracked objects and get similarly consistent eye trajectories. We presented each trial in two variants: L and R (horizontally flipped variant of L). Each variant was presented 6 times and each participant (N=26) was presented 5 different trials. Tracked objects moved in circular area with radius 15deg. We used Normalized scanpath saliency (NSS) metric for computing consistency of trajectories. Similarity of eye movements in within the same condition (NSS computed separately for L and R trials) was compared with mixed condition (NSS computed over trials sampled from both L and R trials). In the mixed condition we observed 14.7% decrease in eye movement consistency compared to the same condition and empirical baseline (similarity of individual eye movements across different trials). Those results are without any further corrections for gaze bias.
Workplace	Institute of Psychology
Contact	Štěpánka Halamová, Halamova@praha.psu.cas.cz, Tel.: 222 222 096
Year of Publishing	2014

Number of the records: 1