A Control Study On FMRI Brain Map In Healthy Adults Undergoing Active, Passive And Intentional Fist Movement

ObjectiveTo observe the characteristic of the fMRI brain map in healthy adult undergoing active, passive and intentions fist movement, provide the theoretical basis for exploring the essence of the central modulating mechanism of passive movement.Materials and MethodTwelve healthy volunteers have been choosed to partake the experience.Everyone has accomplished the following five duties separately: (1) active fist movement of left hand; (2) active fist movement of right hand; (3) passive fist movement of left hand;(4) passive fist movement of right hand; (5) intentions fist movement of left handThe data have been analyzed statistically using Analysis of Functional NeuroImages (AFNI) software(edition: 2008₀2₀1₁144),in the condition of F (6,1121), P=0.005, the signal which is bigger than three voxels is retained, and is considered the activated signal.These actived signals organize the activated brain areas.Results(1)Under the basic conditions, the brain functional areas concerning active left hand- fisting movement showed as : right precentral gyrus,right superior temporal gyrus and left superior temporal gyrus,aespecially right precentral gyrus;under the basic conditions, the brain functional areas concerning passive left hand- fisting movement showed as:right precentral gyrus,left tonsil of cerebellum and left superior temporal gyrus;(2)Under the basic conditions, the brain functional areas concerning active right hand- fisting movement showed as: left precentral gyrus, left inferior frontal gyrus, left superior temporal gyrus and right tonsil of cerebellum; under the basic conditions, the brain functional areas concerning passive right hand- fisting movement showed as:left superior temporal gyrus,left inferior frontal gyrus, right superior temporal gyrus and right tonsil of cerebellum;(3)Under the basic conditions, the brain functional areas concerning intentional fisting movement showed as: left gyrus frontalis medialis;(4)Under the basic conditions, the brain functional areas with statistical significance between active and passive left hand- fisting movement, were right postcentral gyrus ,right superior frontal gyrus and right cingulate gyrus;(5)Under the basic conditions, there were no brain functional areas with statistical significance between active and passive right hand- fisting movement;(6)Under the basic conditions, the brain functional areas with statistical significance between active left hand and intentional fisting movement were left precentral gyrus;Conclusions(1)Both active and passive fisting movement were controlled specifically by certain brain areas;(2)Both dominant hand and non-dominant hand have similar brain activation areas,among them the precentral gyrus activation is most apparent;(3)The passive dominant hand fisting movement was able to activate the areas related to passively;(4)The passive non-dominant hand fisting movement was able to activate the areas related to passively,and more stronger .(5)Passive non-dominant hand fisting movement activated a larger area in a stronger way than active;(6)Compared to the intentional fist movement, the passive fist movement can active the primary motor cortex,especially the precentral gyrus. And the intentional fist movement can not active the similar motor cortex.