The reliability and internal consistency of one-shot and flicker change detection for measuring individual differences in visual working memory capacity.
We investigated the psychometric properties of the one-shot change detection task for estimating visual working memory (VWM) storage capacity-and also introduced and tested an alternative flicker change detection task for estimating these limits. In three experiments, we found that the one-shot whol...
| Publicado en: | Memory & Cognition Vol. 43; no. 3; pp. 397 - 421 |
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| Autores principales: | , |
| Formato: | Artículo |
| Publicado: |
Springer Nature
Apr2015
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=102426887&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 102426887 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 0090502X MEG jtl: Memory & Cognition issn: 0090502X maglogo: N pubinfo: dt: Apr2015 vid: 43 iid: 3 pid: 237 pub: Springer Nature artinfo: ui: 102426887 10.3758/s13421-014-0492-0 ppf: 397 ppct: 24 formats: fmt: @attributes: type: P size: 2MB tig: atl: The reliability and internal consistency of one-shot and flicker change detection for measuring individual differences in visual working memory capacity. aug: au: Pailian, Hrag Halberda, Justin affil: Department of Psychological and Brain Sciences, Johns Hopkins University, 3400 North Charles Street Baltimore 21218 USA su: Task performance Short-term memory sug: subj: Task performance Short-term memory keyword: Individual differences Memory Working memory Individual differences Memory Working memory ab: We investigated the psychometric properties of the one-shot change detection task for estimating visual working memory (VWM) storage capacity-and also introduced and tested an alternative flicker change detection task for estimating these limits. In three experiments, we found that the one-shot whole-display task returns estimates of VWM storage capacity ( K) that are unreliable across set sizes-suggesting that the whole-display task is measuring different things at different set sizes. In two additional experiments, we found that the one-shot single-probe variant shows improvements in the reliability and consistency of K estimates. In another additional experiment, we found that a one-shot whole-display-with-click task (requiring target localization) also showed improvements in reliability and consistency. The latter results suggest that the one-shot task can return reliable and consistent estimates of VWM storage capacity ( K), and they highlight the possibility that the requirement to localize the changed target is what engenders this enhancement. Through a final series of four experiments, we introduced and tested an alternative flicker change detection method that also requires the observer to localize the changing target and that generates, from response times, an estimate of VWM storage capacity ( K). We found that estimates of K from the flicker task correlated with estimates from the traditional one-shot task and also had high reliability and consistency. We highlight the flicker method's ability to estimate executive functions as well as VWM storage capacity, and discuss the potential for measuring multiple abilities with the one-shot and flicker tasks. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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