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An Operant Intra-/Extra-dimensional Set-shift Task for Mice
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An Operant Intra-/Extra-dimensional Set-shift Task for Mice.

Diego Scheggia1, Francesco Papaleo2

  • 1Department of Neuroscience and Brain Technologies, Istituto Italiano di Tecnologia.

Journal of Visualized Experiments : Jove
|February 11, 2016
PubMed
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Researchers developed a novel automated rodent task to assess cognitive flexibility, crucial for understanding neuropsychiatric disorders. This tool aids in preclinical drug testing and genetic screening for executive dysfunction.

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Behavioral Pharmacology

Background:

  • Executive control and cognitive flexibility deficits are key in neuropsychiatric diseases.
  • Current rodent models for attentional set-shifting have limitations hindering translational research.
  • Existing tasks often rely on manual procedures, limiting efficiency and standardization.

Purpose of the Study:

  • To develop a novel, automated operant-based task for assessing cognitive flexibility in rodents.
  • To create a tool that better mimics primate-based attentional set-shifting tasks.
  • To provide a flexible preclinical platform for drug and genetic screening related to executive dysfunction.

Main Methods:

  • Development of a two-chamber operant task, the "Operon" task, for rodents.

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Related Experiment Videos

Last Updated: Mar 26, 2026

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  • Utilized an Intra-/Extra-dimensional (ID/ED) set-shifting paradigm within the operant chamber.
  • Manipulated three perceptual dimensions with numerous stimulus cues to assess cognitive flexibility facets.

    • Main Results:

    • Demonstrated the "Operon" task's effectiveness in measuring attentional set formation and shifting in mice.
    • Showcased the task's ability to assess reversal learning.
    • Confirmed the task's flexibility with multiple perceptual dimensions and stimuli.

    Conclusions:

    • The novel "Operon" task serves as an effective preclinical tool for evaluating cognitive flexibility in rodents.
    • This automated system overcomes limitations of manual tasks, facilitating translational research in psychiatric medicine.
    • The task is suitable for drug testing and genetic screening for executive dysfunction and cognitive symptoms in neuropsychiatric disorders.