Universität zu Köln

Mattes, André ORCID: 0000-0002-4821-8012, Tavera, Felice ORCID: 0000-0003-0994-6620, Ophey, Anja ORCID: 0000-0001-5858-7762, Roheger, Mandy ORCID: 0000-0002-6015-3194, Gaschler, Robert ORCID: 0000-0002-8576-5330 and Haider, Hilde ORCID: 0000-0001-7293-3166 (2020). Parallel and serial task processing in the PRP paradigm: a drift–diffusion model approach. Psychological Research. ISSN 0340-0727

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Abstract

Even after a long time of research on dual-tasking, the question whether the two tasks are always processed serially (response selection bottleneck models, RSB) or also in parallel (capacity-sharing models) is still going on. The first models postulate that the central processing stages of two tasks cannot overlap, producing a central processing bottleneck in Task 2. The second class of models posits that cognitive resources are shared between the central processing stages of two tasks, allowing for parallel processing. In a series of three experiments, we aimed at inducing parallel vs. serial processing by manipulating the relative frequency of short vs. long SOAs (Experiments 1 and 2) and including no-go trials in Task 2 (Experiment 3). Beyond the conventional response time (RT) analyses, we employed drift–diffusion model analyses to differentiate between parallel and serial processing. Even though our findings were rather consistent across the three experiments, they neither support unambiguously the assumptions derived from the RSB model nor those derived from capacity-sharing models. SOA frequency might lead to an adaptation to frequent time patterns. Overall, our diffusion model results and mean RTs seem to be better explained by participant’s time expectancies.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Mattes, André UNSPECIFIED orcid.org/0000-0002-4821-8012 UNSPECIFIED Tavera, Felice UNSPECIFIED orcid.org/0000-0003-0994-6620 UNSPECIFIED Ophey, Anja UNSPECIFIED orcid.org/0000-0001-5858-7762 UNSPECIFIED Roheger, Mandy UNSPECIFIED orcid.org/0000-0002-6015-3194 UNSPECIFIED Gaschler, Robert UNSPECIFIED orcid.org/0000-0002-8576-5330 UNSPECIFIED Haider, Hilde UNSPECIFIED orcid.org/0000-0001-7293-3166 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-365029
DOI:	10.1007/s00426-020-01337-w
Journal or Publication Title:	Psychological Research
Date:	25 April 2020
ISSN:	0340-0727
Language:	English
Faculty:	Faculty of Human Sciences
Divisions:	Faculty of Human Sciences > Department Psychologie
Subjects:	Psychology
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/36502