Objective：To explore the difference in creative thinking and the related factors between deaf children and normal children.Methods：Observation group(n=122)with the hearing disability students were selected from 4 special education schools.Control group(n=122)was come from 2 ordinary primary schools and 2 ordinary middle schools.The two groups were given both the New Creativity Test and the Combined Raven's Test.Results：(1)Deaf children got lower scores than normal children in verbal fluency[(7.76±0.75)vs.(12.98±0.59),P<0.001],verbal flexibility[(4.28±0.33)vs.(7.87±0.28),P<0.001],verbal originality [(7.16±0.89)vs.(11.35±0.72),P<0.001],figural flexibility[(9.69±0.35)vs.(11.10±0.31),P=0.003]and IQ[(101.05±1.196)vs.(105.01±1.102),P=0.030].Deaf children got higher scores than normal children in figural elaboration[(3.24±0.40)vs.(1.96±0.22),P=0.006].There was no significant difference in fluency and originality of figural task between the two groups.(2)Deaf children's scores of verbal fluency and verbal originality were positively correlated with their age(β=0.310,0.301;Ps<0.01).Deaf children's scores of verbal flexibility were positively correlated with length of bilingual education(β=0.308,P<0.001).Deaf children's scores of figural fluency,figural flexibility,figural originalityand figural elaboration were correlated positively with their age of sign language(β=0.321,0.308,0.228,0.456;Ps<0.05).Conclusions:(1)Deaf children are lower than normal children in verbal fluency,verbal flexibility,verbal originality,figural flexibility,and are higher in figural elaboration.There is no difference in figural fluency and originality between them.(2)Sign language is a major related factor to deaf children's figural creative thinking.

Objective To observe the value of B1 corrected T1 mapping for distinguishing pathological types and differentiation degrees of lung cancers.Methods A total of 74 lesions in 65 patients with lung cancers were prospectively enrolled,including 49 poorly differentiated lesions and 25 moderately or well differentiated ones,i.e.42 adenocarcinomas,14 squamous cell carcinomas and 18 small cell lung cancers(all poorly differentiated).B1 corrected T1 mapping was performed,ROI(ROI1 and ROI2)were delineated using 2 methods,and T1 values of different pathological types and differentiation degrees lung cancers were compared.The receiver operating characteristic(ROC)curves were drawn,and the areas under the curve(AUC)were calculated.Results Significant differences of T1 values were found among different pathological types of lung cancer(all P＜0.05),as well as between small cell lung cancer and the rest 2 types of lung cancer(both P＜0.05).There were significant differences of T1 values between poorly differentiated and moderately well differentiated lung cancer(squamous cell carcinoma+adenocarcinoma)(both P＜0.05).Taken ROI1 T1 value=1 524.21 ms as the cut-off value,the AUC of T1 value for distinguishing poorly differentiated and moderately well differentiated lung cancer(squamous cell carcinoma+adenocarcinoma)was 0.698,with sensitivity of 64.50％and specificity of 76.00％.Taken ROI2 T1 value=1 630.68 ms as the cut-off value,the AUC of T1 value was 0.676,with sensitivity of 54.80％and specificity of 80.00％.Conclusion B1 corrected T1 mapping was helpful for distinguishing pathological types and differentiation degrees of lung cancers.