Discretionary task interleaving : heuristics for time allocation in cognitive foraging

Payne, Stephen J.; Duggan, Geoffrey B.; Neth, Hansjörg

Discretionary task interleaving : heuristics for time allocation in cognitive foraging

Dateien

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Datum

2007

Autor:innen

Payne, Stephen J.

Duggan, Geoffrey B.

Neth, Hansjörg

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Journal of Experimental Psychology: General. 2007, 136(3), pp. 370-388. ISSN 0096-3445. eISSN 1939-2222. Available under: doi: 10.1037/0096-3445.136.3.370

Zusammenfassung

When participants allocated time across 2 tasks (in which they generated as many words as possible from a fixed set of letters), they made frequent switches. This allowed them to allocate more time to the more productive task (i.e., the set of letters from which more words could be generated) even though times between the last word and the switch decision ("giving-up times") were higher in the less productive task. These findings were reliable across 2 experiments using Scrabble tasks and 1 experiment using word-search puzzles. Switch decisions appeared relatively unaffected by the ease of the competing task or by explicit information about tasks’ potential gain. The authors propose that switch decisions reflected a dual orientation to the experimental tasks. First, there was a sensitivity to continuous rate of retur - an information-foraging orientation that produced a tendency to switch in keeping with R. F. Green’s (1984) rule and a tendency to stay longer in more rewarding tasks. Second, there was a tendency to switch tasks after subgoal completion. A model combining these tendencies predicted all the reliable effects in the experimental data.

Fachgebiet (DDC)

150 Psychologie

Schlagwörter

task interleaving, time allocation, information foraging, multitasking, self-interruption

Zitieren

ISO 690

PAYNE, Stephen J., Geoffrey B. DUGGAN, Hansjörg NETH, 2007. Discretionary task interleaving : heuristics for time allocation in cognitive foraging. In: Journal of Experimental Psychology: General. 2007, 136(3), pp. 370-388. ISSN 0096-3445. eISSN 1939-2222. Available under: doi: 10.1037/0096-3445.136.3.370

BibTex

@article{Payne2007-08Discr-28388,
  year={2007},
  doi={10.1037/0096-3445.136.3.370},
  title={Discretionary task interleaving : heuristics for time allocation in cognitive foraging},
  number={3},
  volume={136},
  issn={0096-3445},
  journal={Journal of Experimental Psychology: General},
  pages={370--388},
  author={Payne, Stephen J. and Duggan, Geoffrey B. and Neth, Hansjörg}
}

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