Intermittent "real-time" fMRI feedback is superior to continuous presentation for a motor imagery task: a pilot study.

ABSTRACT:

Background

Real-time functional MRI feedback (RTfMRIf) is a developing technique, with unanswered methodological questions. Given a delay of seconds between neural activity and the measurable hemodynamic response, one issue is the optimal method for presentation of neurofeedback to subjects. The primary objective of this preliminary study was to compare the methods of continuous and intermittent presentation of neural feedback on targeted brain activity.

Methods

Thirteen participants performed a motor imagery task and were instructed to increase activation in an individually defined region of left premotor cortex using RTfMRIf. The fMRI signal change was compared between real and false feedback for scans with either continuous or intermittent feedback presentation.

Result

SUBMITTER: Johnson KA 

PROVIDER: S-EPMC3070198 | biostudies-literature | 2012 Jan

REPOSITORIES: biostudies-literature