Direct real-time neural evidence for task-set inertia

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Evans, Lisa H. ; Herron, Jane E. ; Wilding, Edward L. (2015)
  • Publisher: SAGE
  • Journal: Psychological Science, volume 26, issue 3, pages 284-290 (issn: 0956-7976, eissn: 1467-9280)
  • Related identifiers: doi: 10.1177/0956797614561799, pmc: PMC4361352
  • Subject: episodic memory | task-set inertia | task switching | recollection | Research Articles | ERPs

One influential explanation for the costs incurred when switching between tasks is that they reflect interference arising from completing the previous task—known as task-set inertia. We report a novel approach for assessing task-set inertia in a memory experiment using event-related potentials (ERPs). After a study phase, participants completed a test block in which they switched between a memory task (retrieving information from the study phase) and a perceptual task. These tasks alternated every two trials. An ERP index of the retrieval of study information was evident in the memory task. It was also present on the first trial of the perceptual task but was markedly attenuated on the second. Moreover, this task-irrelevant ERP activity was positively correlated with a behavioral cost associated with switching between tasks. This real-time measure of neural activity thus provides direct evidence of task-set inertia, its duration, and the functional role it plays in switch costs.
  • References (25)
    25 references, page 1 of 3

    Allport, A., Styles, E. A., & Hsieh, S. (1994). Shifting intentional set: Exploring the dynamic control of tasks. In C. Umilta & M. Moscovitch (Eds.), Attention and performance XV (pp. 421-452). Cambridge, MA: MIT Press.

    Bergstrom, Z. M., Velmans, M., de Fockert, J., & RichardsonKlavehn, A. (2007). ERP evidence for successful voluntary avoidance of conscious recollection. Brain Research, 1151, 119-133.

    Coltheart, M. (1981). The MRC Psycholinguistic Database. Quarterly Journal of Experimental Psychology, 33A, 497-505.

    Evans, L. H., Wilding, E. L., Hibbs, C. S., & Herron, J. E. (2010). An electrophysiological study of boundary conditions for control of recollection in the exclusion task. Brain Research, 1324, 43-53.

    Friedman, D., & Johnson, R. (2000). Event-related potential (ERP) studies of memory encoding and retrieval: A selective review. Microscopy Research & Techniques, 51, 6-28.

    Herron, J. E., & Rugg, M. D. (2003). Strategic influences on recollection in the exclusion task: Electrophysiological evidence. Psychonomic Bulletin & Review, 10, 703-710.

    Jasper, H. H. (1958). Report of the Committee on Methods of Clinical Examination in Electroencephalography. Electroencephalography and Clinical Neurophysiology, 10, 370-375.

    Kiesel, A., Steinhauser, M., Wendt, M., Falkenstein, M., Jost, K., Philipp, A. M., & Koch, I. (2010). Control and interference in task switching-a review. Psychological Bulletin, 136, 849-874.

    Lakens, D. (2013). Calculating and reporting effect sizes to facilitate cumulative science: A practical primer for t-tests and ANOVAs. Frontiers in Psychology, 4, Article 863. Retrieved from http:// journal.frontiersin.org/Journal/10.3389/fpsyg.2013.00863/full Loftus, G. R., & Masson, M. E. J. (1994). Using confidence intervals in within-subjects designs. Psychonomic Bulletin & Review, 1, 476-490.

    Longman, C. S., Lavric, A., & Monsell, S. (2013). More attention to attention? An eye-tracking investigation of selection of perceptual attributes during a task switch. Journal of Experimental Psychology: Learning, Memory, and Cognition, 39, 1142-1151.

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