Custom-molded headcases have limited efficacy in reducing head motion during naturalistic fMRI experiments.

ABSTRACT: Effectively minimizing head motion continues to be a challenge for the collection of functional magnetic resonance imaging (fMRI) data. The use of individual-specific custom molded headcases is a promising solution to this issue, but there has been limited work to date. In the present work, we examine the efficacy of headcases in a larger group of participants engaged in naturalistic scanning paradigms including: long movie-watching scans (~20 to 45min) and a recall task that involved talking aloud inside the MRI. Unlike previous work, we find that headcases do not reliably reduce motion during movie viewing compared to alternative methods such as foam pillows or foam pillows plus medical tape. Surprisingly, we also find that motion is worse when participants talk aloud while wearing headc

SUBMITTER: Jolly E 

PROVIDER: S-EPMC7830829 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature