Functional Connectivity MR Imaging Reveals Cortical Functional Connectivity in the Developing Brain

Functional connectivity MR imaging reveals cortical functional connectivity in the developing brain.

BACKGROUND AND PURPOSE Unlike conventional functional MR imaging where external sensory/cognitive paradigms are needed to specifically activate different regions of the brain, resting functional connectivity MR imaging acquires images in the absence of cognitive demands (a resting condition) and detects brain regions, which are highly temporally correlated. Therefore, resting functional MR imag...

Functional Connectivity Magnetic Resonance Imaging Reveals Cortical Functional Connectivity in the Developing Brain

Background and Purpose: Resting functional MRI was utilized to depict brain regions exhibiting temporal synchronization, also known as resting brain functional connectivity (rfc). This study aims to determine the temporal and spatial patterns of rfc in healthy pediatric subjects between 2wks and 2yrs old. Methods: Rfc studies were performed on 85 children: 38 neonates (2-4 wks), 26 1yr olds and...

Brain Functional Connectivity Changes During Learning of Time Discrimination

The human brain is a complex system consist of connected nerve cells that adapts with and learn from the environment by changing its regional activities. Synchrony between these regional activities called functional network changes during the life, and with learning of new skills. Time perception and interval discrimination are among the most necessary skills for the human being to perceive mot...

Functional connectivity MR imaging: fact or artifact?

Resting-state Functional Connectivity During Controlled Respiratory Cycles Using Functional Magnetic Resonance Imaging

Introduction: This study aimed to assess the effect of controlled mouth breathing during the resting state using functional magnetic resonance imaging (fMRI). Methods: Eleven subjects participated in this experiment in which the controlled “Nose” and “Mouth” breathings of 6 s respiratory cycle were performed with a visual cue at 3T MRI. Voxel-wise seed-to-voxel maps and whole-brain region of i...