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Statements

Subject Item
n2:RIV%2F68081740%3A_____%2F14%3A00433886%21RIV15-GA0-68081740
rdf:type
n15:Vysledek skos:Concept
rdfs:seeAlso
http://www.perceptionweb.com/abstract.cgi?id=v1411705
dcterms:description
Previously, it has been shown the gaze position during Multiple Object Tracking is systematically lagging behind the scene content by approx. 100 ms. We ran additional experiments to investigate how the cognitive workload and predictability of objects’ movements affect the lag time. In Experiment 1 we manipulated the number of tracked objects (2 or 4). In Experiments 2a and 2b we manipulated the predictability of movements on the screen by adjusting the parameters of von Mises distribution from which the objects’ directions were sampled. All experiments confirmed the presence of gaze position lag of 100 ms when tracking 4 targets with speed 5 deg/s. We found a significant increase of lag in less predictable movements (by +33 ms). The observed changes in gaze position lag for lower cognitive workload (-14 ms) or more predictable movements (-19 ms) were not significant. Previously, it has been shown the gaze position during Multiple Object Tracking is systematically lagging behind the scene content by approx. 100 ms. We ran additional experiments to investigate how the cognitive workload and predictability of objects’ movements affect the lag time. In Experiment 1 we manipulated the number of tracked objects (2 or 4). In Experiments 2a and 2b we manipulated the predictability of movements on the screen by adjusting the parameters of von Mises distribution from which the objects’ directions were sampled. All experiments confirmed the presence of gaze position lag of 100 ms when tracking 4 targets with speed 5 deg/s. We found a significant increase of lag in less predictable movements (by +33 ms). The observed changes in gaze position lag for lower cognitive workload (-14 ms) or more predictable movements (-19 ms) were not significant.
dcterms:title
Factors affecting gaze position lag in multiple object tracking Factors affecting gaze position lag in multiple object tracking
skos:prefLabel
Factors affecting gaze position lag in multiple object tracking Factors affecting gaze position lag in multiple object tracking
skos:notation
RIV/68081740:_____/14:00433886!RIV15-GA0-68081740
n3:aktivita
n4:I n4:P
n3:aktivity
I, P(GA13-23940S)
n3:dodaniDat
n5:2015
n3:domaciTvurceVysledku
n9:2669501
n3:druhVysledku
n12:O
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n8:predkladatel
n3:idSjednocenehoVysledku
16327
n3:idVysledku
RIV/68081740:_____/14:00433886
n3:jazykVysledku
n17:eng
n3:klicovaSlova
eye movements; multiple object tracking; visual attention
n3:klicoveSlovo
n10:multiple%20object%20tracking n10:eye%20movements n10:visual%20attention
n3:kontrolniKodProRIV
[1B8C144FC5D1]
n3:obor
n14:AN
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:projekt
n11:GA13-23940S
n3:rokUplatneniVysledku
n5:2014
n3:tvurceVysledku
Lukavský, Jiří