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Requirement of Prefrontal and Midbrain Regions for Rapid Executive Control of Behavior in the Rat

机译:提前额外和中脑地区的要求,以便大鼠行为的快速行政控制

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摘要

To study rapid sensorimotor remapping, we developed a method to train rats in a behavior in which subjects are cued, on each trial, to apply a sensorimotor association to orient either toward a visual target ("Pro'') or away from it, toward its reverse ("Anti''). Multiple behavioral asymmetries suggested that Anti behavior is cognitively demanding while Pro is easier to learn and perform. This is consistent with a prominent hypothesis in the primate literature that Anti requires prefrontal cortex (PFC), whereas Pro could be mediated by midbrain superior colliculus (SC). Pharmacological inactivation of rat medial PFC supported its expected role in Anti. Remarkably, bilateral SC inactivation substantially impaired Anti while leaving Pro essentially intact. Moreover, SC inactivation eliminated the performance cost of switching from Anti to Pro tasks. Our results establish a rodent model of single-trial sensorimotor remapping and suggest a critical role for SC in the cognitively demanding Anti task.
机译:为了研究快速的感觉传递器重新映射,我们开发了一种在每次试验中培训受试者被提示的行为中培训大鼠的方法,以将感觉电流协会朝向视觉目标(“Pro”)或远离它,朝向它的反向(“反”)。多种行为不对称表明反对行为正在认知苛刻,而Pro更容易学习和执行。这与抗预期皮质(PFC)的灵长类动物文献中的突出假设一致,而Pro可以通过中脑优异的小集(SC)介导。大鼠内侧PFC的药理失活在抗体中支持其预期作用。值得注意的是,双侧SC失活显着受到抗的,同时让Pro基本完好无损。此外,SC灭活消除了从抗替代任务切换的性能成本。我们的结果建立了一个啮齿动物的单试赛道Remappation refappator,并为Cognitive要求苛刻的反任务中的SC表达了一个关键作用。

著录项

  • 来源
    《Neuron》 |2015年第6期|共13页
  • 作者单位

    Princeton Univ Princeton Neurosci Inst Princeton NJ 08544 USA;

    Princeton Univ Princeton Neurosci Inst Princeton NJ 08544 USA;

    Princeton Univ Princeton Neurosci Inst Princeton NJ 08544 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 神经病学;
  • 关键词

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