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Objective:To explore the cognitive processing characteristics of semantic emotion Stroop and memory recognition in pilots with depression, and to systematically reveal the cognitive processing characteristics of attention and memory.Methods:The semantic emotional Stroop task and memory recognition test were performed in 36 depressed pilots and 36 healthy pilots.The results of attention and memory in cognitive processing were analyzed by repeated measurement analysis of variance using SPSS 18.0 software.Results:In the semantic emotion Stroop, the response time of the depression group was longer than that of the control group ( F(1, 70)=7.03, P=0.008), and the response time of the depression group(579.55±141.62)ms ) was longer than that of the neutral words (565.66±132.60)ms, P=0.003) and positive words (563.09±138.88)ms, P<0.01). In memory recognition, the accuracy of response to emotion words in the depressed group was higher than that in the control group ( F(1, 70)=23.15, P<0.01). The accuracy of response to negative words was higher in the depressed group than that to positive words ((0.50±0.32) vs (0.32±0.21), P=0.006) and neutral words ((0.50±0.32) vs (0.33±0.23), P=0.007). The depression group showed a conservative bias towards negative words ((1.46±0.40), P<0.01), and negative words compared with neutral words ((0.63±0.24), P<0.01) and positive words ((0.57±0.27), P<0.01) were cautious and conservative. Conclusion:Patients with depression have attention bias toward the negative information in semantic information processing, and negative memory bias in memory recognition.
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Objective To observe the neural mechanism of learning and memory network disturbance induced by 36 hours sleep deprivation(SD).Methods 18 young male healthy volunteers were enrolled in this study.Resting state functional magnetic imaging(rs-fMRI) data was collected by blood oxygen level dependence functional magnetic imaging(BOLD-fMRI) during rest wakefulness(RW) and 36 hours SD.Bilateral hippocampus were selected as seed points by REST software automated anatomical labeling template.And then compared the differences of functional connectivity(FC) between bilateral hippocampus and whole brain regions by using paired-t test within statistical parametric mapping 8 (SPM8) software.Finally,correlation analysis had been done between significant FC of brain regions and WMS MQ values (SD-RW).Results Compared with RW,the bilateral hippocampus showed positive connected with the right dorsal posterior cingulate cortex,and showed negative functional connectivity with bilateral postcentral gyrus.The WMS MQ was significantly decreased after 36 hours SD.The connection between bilateral hippocampus and the right posterior cingulate cortex showed negative correlation with the deductionofWMS MQ (left:r=-0.463,P=0.015;right:r=-0.546,P=0.003).Conclusion SD has a significant effect on bilateral hippocampal FC.The FC between bilateral hippocampus and right dorsal posterior cingulate cortexis significant increased,while between bilateral postcentral gyrus is decreased after 36 hours SD.The former may be an important neurological mechanism in learning and memory ability regulation after 36 hours sleep deprivation.
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Objective:To explore the prevalence rate of suicidal ideation and its risk and protective factors in military personnel.Methods:A total of 2071 military personnel were investigated by stratified random cluster sampling in May to August of 2015.The Question 7 of Beck Depression Scale (BDI) was used to test suicide ideation (item 7 score ≥ 1 was dovetailed in suicide ideation group).Family,social demographic and occupational factors were assessed with the self-made general characteristics questionnaire.The data were analyzed with multiple stepwise logistic regression.Results:There were 382 (18.4％) military personnel whose scores of item 7 were ≥1.Family history of suicide (OR =42.97,95％ CI =29.14-63.35),surrounding suicide (OR =2.46,95％ CI =1.75-3.46),drinking (OR =1.64,95％ CI =1.31-2.07) and level of education (OR =1.38,95％ CI =1.01-1.90) were risk factors of suicidal ideation.Protective factors were (OR =0.60,95％ CI =0.50-0.72) and station (OR =0.15,95％ CI =0.03-0.64).Conclusion:It suggests that in suicidal prevention for military,more attention is deserved paying to those military personnel who have family history of suicide,surrounding suicide,drinking habit,and are stationed in remote areas and air force.
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Objective To explore the relationship between visuospatial abilities of the students ma-jor in air traffic management and their performances,and then provide theories of their vocational classified. Methods 104 healthy male college students were tested by the cognitive laterality battery (CLB),which included visuospatial tests and verbal-sequential tests.At the same time,their performances assessed by air traffic management stimulators.Results Subjects with higher scores achieved by operating on air traffic management stimulators have higher visuospatial abilities,which was confirmed by the visual spatial scores (A) ((0.183±0.094) vs (0.060±0.338), t=41.57, P=0.000) and cognitive laterality quotient (CLQ) ((0.087±0.108) vs (-0.096±0.101), t=43.14, P=0.000)).However,compared with others in lower scores group,their scores on the phonological tests (P) reduced ((0.096±0.081) vs (0.157±0.092), t=6.81, P=0.012) ) .Moreover,there were the significant positive correlation between their performance on air traffic management stimulators and A ( r=0.749, P<0.01) ,CLQ ( r=0.663, P<0.01) ,cognitive performance quotient (CPQ) ( r=0.394, P<0.01).Conclusion For air traffic management occupation,the higher visual spatial abilities were the base of having the higher performance.Thus the visuospatial abilities may be as a good index of selecting and vocational classified for air traffic management students.
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Objective To explore the relationship between general self-efficacy sense and psycho-logical health of nursing staff. Methods 230 healthy nursing staff were investigated with self-rating de-pression scale, serf-rating anxiety scale and general serf-efficacy scale. Correlation analysis and t test were adopted to analyze the data. Results There was a negative correlation between the scores of general self-efficacy scale and the scores of self-rating anxiety and depression scale. Moreover, the scores of anxi-ety and depression of nursing staff with higher self-efficacy were higher than those with lower self-effica-cy. Conclusions Self-efficacy sense has positive effects on the level of psychological health of nursing staff. The higher self-efficacy sense will help maintain higher psychological health state.