A multisensory perspective onto primate pulvinar functions

NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS

卷:125

Article

Froesel, Mathilda¹  Cappe, Celine²  Hamed, Suliann Ben¹ 

[1] Univ Claude Bernard Lyon I, CNRS, UMR 5229, Inst Sci Cognit Marc Jeannerod, 67 Blvd Pinel, F-69675 Bron, France

[2] Univ Toulouse, Univ Paul Sabatier, Ctr Rech Cerveau & Cognit, F-31062 Toulouse 9, France

关键词: Pulvinar;    Cortex;    Multisensory;    Visual;    Auditory;    Somatosensory;    Anatomy;    fMRI;   

DOI  :  10.1016/j.neubiorev.2021.02.043

来源: Elsevier

【 摘 要 】

Perception in ambiguous environments relies on the combination of sensory information from various sources. Most associative and primary sensory cortical areas are involved in this multisensory active integration process. As a result, the entire cortex appears as heavily multisensory. In this review, we focus on the contribution of the pulvinar to multisensory integration. This subcortical thalamic nucleus plays a central role in visual detection and selection at a fast time scale, as well as in the regulation of visual processes, at a much slower time scale. However, the pulvinar is also densely connected to cortical areas involved in multisensory integration. In spite of this, little is known about its multisensory properties and its contribution to multisensory perception. Here, we review the anatomical and functional organization of multisensory input to the pulvinar. We describe how visual, auditory, somatosensory, pain, proprioceptive and olfactory projections are differentially organized across the main subdivisions of the pulvinar and we show that topography is central to the organization of this complex nucleus. We propose that the pulvinar combines multiple sources of sensory information to enhance fast responses to the environment, while also playing the role of a general regulation hub for adaptive and flexible cognition.

【 授权许可】

Free