Save

Auditory and Visual Durations Load a Unitary Working-Memory Resource

In: Timing & Time Perception
Authors:
Kielan Yarrow Department of Psychology, City, University of London, London, UK

Search for other papers by Kielan Yarrow in
Current site
Google Scholar
PubMed
Close
,
Carine Samba Department of Psychology, City, University of London, London, UK

Search for other papers by Carine Samba in
Current site
Google Scholar
PubMed
Close
,
Carmen Kohl Department of Neuroscience, Brown University, Providence, RI, USA

Search for other papers by Carmen Kohl in
Current site
Google Scholar
PubMed
Close
, and
Derek H. Arnold School of Psychology, The University of Queensland, Brisbane, Qld, Australia

Search for other papers by Derek H. Arnold in
Current site
Google Scholar
PubMed
Close
Download Citation Get Permissions

Access options

Get access to the full article by using one of the access options below.

Institutional Login

Log in with Open Athens, Shibboleth, or your institutional credentials

Login via Institution

Purchase

Buy instant access (PDF download and unlimited online access):

$40.00

Abstract

Items in working memory are typically defined by various attributes, such as colour (for visual objects) and pitch (for auditory objects). The attribute of duration can be signalled by multiple modalities, but has received relatively little attention from a working-memory perspective. While the existence of specialist stores (e.g., the phonological loop and visuospatial sketchpad) is often asserted in the wider working-memory literature, the interval-timing literature has more often implied a unitary (amodal) store. Here we combine two modelling frameworks to probe the basis of working memory for duration; a Bayesian-observer framework, previously used to explain behaviour in duration-reproduction tasks, and mixture models, describing distributions of continuous reports about items in working memory. We modelled different storage mechanisms, such as a limited number of fixed-resolution slots or a resource spread between items at a cost to resolution, in order to ask whether items from different sensory modalities are maintained in separate, independent stores. We initially analysed data from 32 participants, who memorised between one and eight items before reproducing the duration of a randomly selected target. In separate blocks, items could be all visual, all auditory, or an alternating mixture of both. A small control experiment included a further condition with precuing of target modality. Certain kinds of slot models, resource models, and combination models incorporating both mechanisms could account for the data. However, looking across all plausible models, the decline in performance with increasing memory load was most consistent with a single store for event durations, regardless of stimulus modality.

Content Metrics

All Time Past 365 days Past 30 Days
Abstract Views 559 128 9
Full Text Views 38 4 0
PDF Views & Downloads 47 12 0