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Related Experiment Video

Updated: Jun 23, 2026

Irrelevant Stimuli and Action Control: Analyzing the Influence of Ignored Stimuli via the Distractor-Response Binding Paradigm
12:12

Irrelevant Stimuli and Action Control: Analyzing the Influence of Ignored Stimuli via the Distractor-Response Binding Paradigm

Published on: May 14, 2014

Sticky plans: Inhibition and binding during serial-task control.

Ulrich Mayr1

  • 1Department of Psychology, University of Oregon, Eugene, OR 97403, United States. mayr@uoregon.edu

Cognitive Psychology
|May 12, 2009
PubMed
Summary
This summary is machine-generated.

Task sequence costs are not due to task inhibition but interference from memory links. This interference occurs in complex sequences with multiple chunks, impacting task performance.

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Area of Science:

  • Cognitive Psychology
  • Human Memory
  • Task Switching

Background:

  • Previous research indicated response-time costs for lag-2 task repetitions in explicit task sequences.
  • These costs were often interpreted as task-set inhibition, where irrelevant tasks are suppressed.

Purpose of the Study:

  • To investigate the underlying mechanisms of lag-2 costs in task sequences.
  • To differentiate between task-set inhibition and interference models.
  • To explore the role of chunking and memory in sequential task performance.

Main Methods:

  • Experiments compared lag-2 costs under serial-control versus externally cued conditions.
  • The influence of sequence chunking and direct repetitions was examined.
  • Hypotheses were tested by manipulating sequence complexity and memory conditions.

Main Results:

  • Lag-2 costs were significantly larger under serial-control than externally cued conditions.
  • Costs were contingent on sequences containing at least two distinct chunks.
  • Direct lag-2 repetitions were not necessary for these costs to emerge.
  • Evidence supported an interference hypothesis over task-set inhibition.
  • Interference was linked to long-term memory, not working memory.

Conclusions:

  • Large lag-2 costs in complex task sequences stem from interference, not task-set inhibition.
  • This interference arises from associations between sequence positions and controlled tasks.
  • Findings necessitate integrating models of serial-order control and serial memory.