Measurement characteristics and convergent validity of temporally modulated Gap–Overlap task versions: Evidence from an Eye-Tracking study in adolescents

Dragana Žunič; Sonja Alimović; Mladen Milić; Ingrid Žolgar Jerković

doi:10.5937/specedreh25-64418

Dragana Žunič Nacionalni obrazovni institut, Ljubljana, Slovenija https://orcid.org/0009-0009-8535-2366
Sonja Alimović Univerzitet u Zagrebu, Edukacijsko-rehabilitaacijski fakultet, Zagreb, Hrvatska https://orcid.org/0000-0003-2122-7944
Mladen Milić Noredus d.o.o., Beograd, Srbija https://orcid.org/0009-0003-1127-7689
Ingrid Žolgar Jerković Univerzitet u Ljubljani, Učiteljski fakultet, Ljubljana, Slovenija https://orcid.org/0009-0001-5259-0263

DOI: https://doi.org/10.5937/specedreh25-64418

Ključne reči: gap-overlap paradigma, merne karakteristike, praćenje pokreta očiju, isključenje vizuelne pažnje, adolescencija

Sažetak

Uvod: Iako se paradigma gap-overlap široko koristi u istraživanjima praćenja pokreta očiju za ispitivanje isključenja vizuelne pažnje, metodološka heterogenost ograničava uporedivost nalaza između studija. Cilj: Cilj studije je da se ispitaju merne karakteristike i konvergentna validnost dve najčešće korišćene verzije gap-overlap zadatka, kao i da se proceni osetljivost i robusnost odabranih indikatora pokreta očiju i fiksacija u različitim eksperimentalnim uslovima. Metode: Primenjen je kvantitativni, neeksperimentalni istraživački dizajn na normativnom uzorku tipično razvijenih adolescenata (N = 53; M = 13.98; SD = 0.93). Isključenje vizuelne pažnje procenjivano je pomoću duže i kraće verzije gap-overlap zadatka, pri čemu su pokreti očiju snimani pomoću uređaja Tobii Pro Nano. Analizirani indikatori obuhvatali su stepen uspešnosti, vremenske i fiksacijske mere, kao i prostorne indikatore disperzije pogleda, definisane percentilima udaljenosti, u uslovima baseline (no-gap), gap i overlap. Rezultati: Rezultati su pokazali umerenu do veoma snažnu konvergenciju između duže i kraće verzije zadatka za većinu indikatora. U obe verzije potvrđen je izražen gap efekat, pri čemu su najkraće prosečne latencije sakadičnih pokreta očiju zabeležene u gap uslovu. Fiksacijski i prostorni indikatori disperzije pogleda pokazali su dosledno visoku konvergenciju u svim eksperimentalnim uslovima, dok su vremenski indikatori pokazali veću varijabilnost, uz slabu konvergenciju prosečne latencije sakadičnih pokreta očiju u overlap uslovu. Zaključak: Kraće verzije gap-overlap zadatka mogu obezbediti validne procene isključenja vizuelne pažnje ukoliko se koriste robusni merni indikatori. Fiksacijske mere i prostorni indikatori disperzije pogleda pokazuju snažnu konvergentnu validnost između verzija zadatka, što podržava njihovu primenu u razvojnim i primenjenim istraživanjima.

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