Pregled bibliografske jedinice broj: 409963
A comparison of methods for estimating the capacity of visual working memory: Examination of encoding limitations
A comparison of methods for estimating the capacity of visual working memory: Examination of encoding limitations // Abstracts of the 8th Alps-Adria Psychology Conference / Podlesek, Anja ; Komidar, Luka (ur.).
Ljubljana, 2009. str. 16-16 (predavanje, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 409963 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
A comparison of methods for estimating the capacity of visual working memory: Examination of encoding limitations
Autori
Švegar, Domagoj ; Domijan, Dražen
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Abstracts of the 8th Alps-Adria Psychology Conference
/ Podlesek, Anja ; Komidar, Luka - Ljubljana, 2009, 16-16
Skup
Alps-Adria Psychology Conference (8 ; 2008)
Mjesto i datum
Ljubljana, Slovenija, 02.10.2008. - 04.10.2008
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
visual working memory; capacity limitations; change detection; visual encoding
Sažetak
The primary goal of the present study was to answer the following question: is visual working memory capacity indeed extremely limited, or it is erroneously underestimated due to inadequate encoding of stimuli? Visual working memory capacity is estimated by a procedure known as change-detection paradigm, in which two sets of stimuli are presented. These two displays are separated by an interstimulus interval, during which a change may occur, usually on one of the stimuli. Participants' task is to answer if change had occurred or not, and the memory capacity is then estimated through analyses of their performance. In the majority of recent studies it was found that the memory capacity is limited to three or four objects. Although there is a consensus regarding the capacity limitation, all previous studies are based on the same procedure, in which it is uncertain that visual objects are adequately encoded into working memory. In order to assure their adequate encoding, we constructed a new procedure, in which stimuli are presented successively in the initial stage. That experimental condition was compared to a condition using classical change-detection paradigm, in which objects are initially presented simultaneously. Besides the initial presentation, testing of memory was also varied: in one condition memory was tested with partial test-displays, while in the other, full test-displays were applied. Thus, a 2 x 2 experimental design was used. Analyses have shown that the main effect of the type of presentation was not significant, and it can therefore be concluded that visual working memory capacity was not underestimated due to encoding limitations in previous studies. The main effect of test display type and the interaction were both also insignificant.
Izvorni jezik
Engleski
Znanstvena područja
Psihologija
POVEZANOST RADA
Projekti:
009-0362214-0818 - Neuronsko modeliranje i bihevioralno testiranje vidne percepcije i kognicije (Domijan, Dražen, MZOS ) ( CroRIS)
Ustanove:
Filozofski fakultet, Rijeka