作者: Javier Buendia , Francis R. Loayza , Elkin O. Luis , Marta Celorrio , Maria A. Pastor
DOI: 10.1016/J.BJPS.2015.10.033
关键词:
摘要: Several techniques have been described for smile restoration after facial nerve paralysis. When a other than the contralateral is used to restore smile, some controversy appears because of nonphysiological mechanism recovering. Different authors reported natural results with masseter nerve. The physiological pathways which determine whether this achieved continue remain unclear. Using functional magnetic resonance imaging, brain activation pattern measuring blood-oxygen-level-dependent (BOLD) signal during smiling and jaw clenching was recorded in group 24 healthy subjects (11 females). Effective connectivity premotor regions also compared both tasks. similar jaw-clenching Smile activations showed topographic overlap though more extended clenching. Gender comparisons movements, according kinematics BOLD signal, did not reveal significant differences. psychophysiological interaction (PPI) from same seeds located bilateral task gender differences (p < 0.001). hypothesis plasticity between areas supported by broad cortical representation muscles.