The parieto-insular vestibular cortex in humans: more than a single area?

Frank, Sebastian M. and Greenlee, Mark W. (2018) The parieto-insular vestibular cortex in humans: more than a single area? JOURNAL OF NEUROPHYSIOLOGY, 120 (3). pp. 1438-1450. ISSN 0022-3077, 1522-1598

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Abstract

Here, we review the structure and function of a core region in the vestibular cortex of humans that is located in the midposterior Sylvian fissure and referred to as the parieto-insular vestibular cortex (PIVC). Previous studies have investigated PIVC by using vestibular or visual motion stimuli and have observed activations that were distributed across multiple anatomical structures, including the temporo-parietal junction, retroinsula, parietal operculum, and posterior insula. However, it has remained unclear whether all of these anatomical areas correspond to PIVC and whether PIVC responds to both vestibular and visual stimuli. Recent results suggest that the region that has been referred to as PIVC in previous studies consists of multiple areas with different anatomical correlates and different functional specializations. Specifically, a vestibular but not visual area is located in the parietal operculum, close to the posterior insula, and likely corresponds to the nonhuman primate PIVC, while a visualvestibular area is located in the retroinsular cortex and is referred to, for historical reasons, as the posterior insular cortex area (PIC). In this article, we review the anatomy, connectivity, and function of PIVC and PIC and propose that the core of the human vestibular cortex consists of at least two separate areas, which we refer to together as PIVC+. We also review the organization in the nonhuman primate brain and show that there are parallels to the proposed organization in humans.

Item Type: Article
Uncontrolled Keywords: VISUAL GRAVITATIONAL MOTION; SURFACE-BASED ANALYSIS; SELF-MOTION; CALORIC STIMULATION; SQUIRREL-MONKEY; ALERT MONKEY; HUMAN BRAIN; SPATIAL REFERENCE; NEURONAL-ACTIVITY; CORTICAL FIELDS; area PIC; area PIVC; self-motion perception; vestibular cortex; visual-vestibular network
Subjects: 100 Philosophy & psychology > 150 Psychology
Divisions: Human Sciences > Institut für Psychologie > Lehrstuhl für Psychologie I (Allgemeine Psychologie I und Methodenlehre) - Prof. Dr. Mark W. Greenlee
Depositing User: Petra Gürster
Date Deposited: 09 Jul 2020 10:40
Last Modified: 09 Jul 2020 10:40
URI: https://pred.uni-regensburg.de/id/eprint/13935

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