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Related Experiment Videos

Response-based strengthening in task shifting: evidence from shift effects produced by errors.

Marco Steinhauser1, Ronald Hübner

  • 1Fachbereich Psychologie, Universität Konstanz, Konstanz, Germany. Marco.Steinhauser@uni-konstanz.de

Journal of Experimental Psychology. Human Perception and Performance
|July 11, 2006
PubMed
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Producing an overt response strengthens task associations, leading to shift costs. However, task confusion errors, even when detected, can surprisingly yield performance benefits on subsequent trials, challenging existing models of error processing.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Performance

Background:

  • Shift costs are a common phenomenon in cognitive tasks, often attributed to the strengthening of task-related associations.
  • The precise mechanisms underlying shift costs and the impact of errors on cognitive control remain areas of active research.

Purpose of the Study:

  • To investigate the role of overt responses in generating shift costs.
  • To examine the effects of errors and error compensation processes on subsequent task performance.
  • To test the hypothesis that specific types of errors, like task confusion, might lead to shift benefits rather than costs.

Main Methods:

  • A series of three experiments were conducted to analyze shift effects.
  • Participants' performance was examined following different types of errors and error detection/correction processes.

Related Experiment Videos

  • Task confusion errors were specifically analyzed for their impact on subsequent trial performance.

    • Main Results:

    • Task confusion errors were found to produce significant shift benefits in subsequent trials.
    • These benefits persisted even when the error was detected by the participant.
    • Only post-error processes involving an explicit error correction response resulted in the expected shift costs.

    Conclusions:

    • Overt responses may contribute to shift costs by strengthening task associations.
    • Task confusion errors represent a distinct category of error that can enhance, rather than impair, subsequent performance.
    • Error detection alone is insufficient to eliminate the influence of errors on cognitive performance; the nature of post-error processing is critical.