What happens when your brain can't tell which way is up or down?

In this virtual-reality-based study, McManus and Harris had their participants lie down in a virtual environment that was tilted so that the visual "up" was ...

source https://www.google.com/url?rct=j&sa=t&url=https://www.eurekalert.org/pub_releases/2021-01/yu-whw010721.php&ct=ga&cd=CAIyGjg5NjVlMGM0YzM3ZjhiODc6Y29tOmVuOlVT&usg=AFQjCNEojx6RzKBL69HuSfL0RUi_VITX5A