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Objective To explore the mechanism of brain function connection (FC) by observing the changes of unilateral spatial neglect (USN) and non-USN patients, using functional magnetic resonance imaging technique (fMRI). Methods 8 USN and 8 control patients participated in the study and fMRI data were collected. The data was analyzed by independent component analysis method. Results USN group showed increased FC in the left frontal/temporal lobeas well and decreased FC in the right cingulate gyrus, precuneus, temporalgyrus compared with control group. These were highly related to behavioral scores. Conclusions Abnormal brain function connection may be related to USN. The findings were helpful for understanding the potential mechanism underlying of USN.
RESUMO
Objective To study the relationship between injury site (right or left) or pathological type (hemorrhage or infarct) and atten-tion impairment in post stroke cognitive impairment (PSCI). Methods June, 2014 to June 2015, 49 patients with PSCI were assessed with Test of Attentional Performance (TAP) within 1 week of admission. The reaction time and the numbers of correct response were recorded. Results The reaction time of alertness (with or without alarm) was shorter in the patients with left infarction (Z=-2.32, t=-3.76, P2.32, t=-3.10, P<0.05). Conclusion A trend of lateralization was found in patients with PSCI, rather than in the pathology.