It's the mere suggestion that they might have those tics, but the article says: > Fourth, in some patients, a rapid and complete remission occurred after exclu

It's the mere suggestion that they might have those tics, but the article says: > Fourth, in some patients, a rapid and complete remission occurred after exclusion of the diagnosis of Tourette syndrome. It also mentions other examples of MSI, where symptoms across the group would subside after a couple weeks or months. So yeah, in most cases all it needs is someone to say Stop That! You're imagining things