1.Face holistic processing is modulated by high-motivation intensity:an event-related potential study
Anqi WANG ; Haidong ZHU ; Xun ZHU ; Qincai QIAO ; Mi CHEN ; Zehai MAO
Chinese Journal of Behavioral Medicine and Brain Science 2019;28(4):359-364
Objective To investigate the influence of high-motivated affect background on the holistic face processing and its neural mechanism.Methods Totally 26 subjects were instructed to perform composite-face process under the priming condition of three emotional pictures (food,neutral and fear).Results (1)Behavioral studies showed a significant interaction between emotion type and face combination(F(2,50) =5.37,P=0.008).Composite-face effect was observed in neutral emotional condition due to the fact that the recognition accuracy of the misaligned face ((90.21 ± 11.20)%) was significantly higher than that of the aligned face((84.83 ± 11.20) %,t (25) =3.95,P=0.001).However,the composite-face effect disappeared under the condition of high-motivated emotion.That is,there was no significant difference in the recognition accuracy of the misaligned faces ((87.88± 10.28)%) and aligned faces ((85.12± 8.81)%,t(25)=1.93,P=0.065) under the condition of high-motivated negative emotion.Under the condition of high-motivated positive emotion,there was also no significant difference in the recognition accuracy between the misaligned faces ((87.92±11.00)%) and aligned faces((88.33±8.89)%,t(z5)=0.263,P=0.795).(2) According to the results of ERP,P3 components showed significant interaction between emotion type and face combination form(F(2,50) =3.23,P=0.048).Under the neutral emotional condition,the P3 amplitude of aligned faces ((3.46 ± 1.26) μV) was significantly higher than that of misaligned faces ((2.82 ± 1.43)μV,F (1,25)=5.28,P=0.03).In the case of high-motivated negative condition,there was no significant difference in P3amplitude between aligned faces ((3.21 ± 1.16) μV) and misaligned faces ((3.07 ± 1.22) μV,F (1,25) =0.53,P=0.476).The P3 amplitude of aligned faces((3.33±1.20) μV) and misaligned faces((3.42±1.40) μV) were also not significantly different under the condition of high-motivated positive affect (F(1,25)=0.23,P=0.638).Conclusion The study shows a high correlation between face processing and emotional processing.Additionally,the emotional motivation has a stronger influence on face processing.Regardless of the emotional valence,high-motivated intensity affect can cause local attention bias and reduce the holistic processing level of the face,which is mainly manifested in the later cognitive processing stage.
2.Effect of amifostine on efficacy and hematologic toxicity in patients with advan ced non-small-cell lung cancer treated with chemotherapy
Kai CHEN ; Qincai WANG ; Min TAO
China Oncology 2000;0(06):-
Purpose:To study the effect of amifostine on ef ficacy in patients with advanced non-small-cell lung cancer(NSCLC) treated w ith chemotherapy and the protection of amifostine on myelosuppression induced by chemotherapy and to investigate major adverse reaction induced by amfostine. Methods:33 patients with advanced NSCLC were randomly divided i nto protection group (amosfostine + MMC +VDS + DDP) and control group (MMC + VDS + DDP), The regimen was given every 4 weeks , All enrolled patients were evalua ted for efficacy and hematologic toxicity after 3 cycles of treatment , Patients in both groups were well-matched for baseline disease characteristics. Results:In protection group (PG) , the response rate was 40% (1 CR , 5 PR , 6 NC , 3 PD), whereas in control group (CG) , the response rate was 33.3% (0 CR , 5 CR , 8 NC , 2 PD), the differentce of response rates betwee n two the groups was not statistically significant (P=0.705). The minimum wh ite blood cell (WBC) counts after chemotherapy in treatment group and in control group were (3.387?1.169)?109/L and (2.46?0.98)?109/L respectively (P =0.026). The minimum blood platelet cell (BPC) counts in PG and in CG were (11 4.53?48.24)?109 /L and (88.2?32.83)?109 /L respectively (P=0.091) . The minimum hemoglobin (HB) counts in CG and in CG were (94.4?14.69)g/L and (89 .33?13.98)g/L respectively (P=0.341). Grade (Ⅱ-Ⅳ) leukopenia rate in PG and in CG were 66.7% (10/15) and 33.3% (5/15) respectively (P= 0.068), Gr ade (Ⅱ-Ⅳ) thrombocytopenia rate in PG and in CG were 33.3% (5/15) and 20% (3/ 15) respectively (P= 0.409), Grade (Ⅱ-Ⅳ) hypochromia rate in PG and in CG were 53.3% (8/15) and 46.7% (7/15) respectively (P= 0.715). Major ad verse effects of amifostine were mild hypotension , nausea and vomiting , dizzin ess , malaise etc. Conclusions:Amifostine does not reduce the efficacy of chemothe rapy in patients with advanced NSCLC , it can reduce the hematologic toxicity as sociated with chemotherapy of MVP regimen , the adverse effects of amifostine ar e mild.

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