Research Group Comparative Neuroscience, Leibniz Institute for Neurobiology, Brenneckestraße 6, Magdeburg 39118, Germany.
Research Group Comparative Neuroscience, Leibniz Institute for Neurobiology, Brenneckestraße 6, Magdeburg 39118, Germany; Center for Behavioral Brain Sciences, Otto-von-Guericke-University, Universitätsplatz 2, Magdeburg 39106, Germany.
Prog Neurobiol. 2024 Sep;240:102637. doi: 10.1016/j.pneurobio.2024.102637. Epub 2024 Jun 13.
While it is well established that sensory cortical regions traditionally thought to be unimodal can be activated by stimuli from modalities other than the dominant one, functions of such foreign-modal activations are still not clear. Here we show that visual activations in early auditory cortex can be related to whether or not the monkeys engaged in audio-visual tasks, to the time when the monkeys reacted to the visual component of such tasks, and to the correctness of the monkeys' response to the auditory component of such tasks. These relationships between visual activations and behavior suggest that auditory cortex can be recruited for visually-guided behavior and that visual activations can prime auditory cortex such that it is prepared for processing future sounds. Our study thus provides evidence that foreign-modal activations in sensory cortex can contribute to a subject's ability to perform tasks on stimuli from foreign and dominant modalities.
虽然已经确定传统上认为单模态的感觉皮层区域可以被非主导模态的刺激激活，但这些外来模态激活的功能仍不清楚。在这里，我们表明，早期听觉皮层中的视觉激活与猴子是否参与视听任务、猴子对这些任务的视觉成分做出反应的时间以及猴子对这些任务的听觉成分的反应的正确性有关。这些视觉激活与行为之间的关系表明，听觉皮层可以被招募用于视觉引导的行为，并且视觉激活可以使听觉皮层准备好处理未来的声音。因此，我们的研究提供了证据表明，感觉皮层中的外来模态激活可以有助于主体对来自外来和主导模态的刺激执行任务的能力。
