Representation of visual gravitational motion in the human vestibular cortex

Iole Indovina, Vincenzo Maffei, Gianfranco Bosco, Myrka Zago, Emiliano Macaluso, Francesco Lacquaniti

Research output: Contribution to journalArticlepeer-review

Abstract

How do we perceive the visual motion of objects that are accelerated by gravity? We propose that, because vision is poorly sensitive to accelerations, an internal model that calculates the effects of gravity is derived from graviceptive information, is stored in the vestibular cortex, and is activated by visual motion that appears to be coherent with natural gravity. The acceleration of visual targets was manipulated while brain activity was measured using functional magnetic resonance imaging. In agreement with the internal model hypothesis, we found that the vestibular network was selectively engaged when acceleration was consistent with natural gravity. These findings demonstrate that predictive mechanisms of physical laws of motion are represented in the human brain.

Original languageEnglish
Pages (from-to)416-419
Number of pages4
JournalScience
Volume308
Issue number5720
DOIs
Publication statusPublished - Apr 15 2005

ASJC Scopus subject areas

  • General

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