Two New-Discovered Functional Networks of Resting Brains

Yi Chia Li¹, Jyh Horng Chen²

Up to 10 functional networks contributed by low frequency fluctuations (LFFs) have been reliably identified to consistently exist in human resting brains. These networks consist of regions which are known to be involved in function of motor, vision, execution, auditory, pain perception, language, cerebellum, and the so called default-mode network (DMN). In our present work, we analyzed resting-state fMRI data of 11 healthy participants to further investigate functional networks which consistently exist in resting brains. The functional networks obtained in our work largely corresponded to the findings in prior literatures. Additionally, we discovered two new functional networks: spatial cognition network and facial sensory network. Spatial cognition network consisted predominantly of superior and inferior parietal gyrus (BA 7/40), which were crucial in visuo-spatial processing during cognition-Chinese-language paradigms (reading and writing). Facial sensory network covered pons and medial temporal pole, which served to process sensory information from human faces such as the sense of smell and taste.