The Study Of Emotional Chimeric Faces And Line Bisection To Attentional Bias In Schizophrenia

Objective Understanding the cognitive neuropsychological characteristics of patientswith schizophrenia attention disorder. Through the physical line bisection test confirmedthat schizophrenic patients whether there is unilateral spatial attention disorder, then tofurther explore patients with schizophrenia in different emotional face recognitioninterference whether there is spacial attention disorder by the emotional chimeric facestest. Through above two test in patients with schizophrenia to explore of associatedprocessing between line bisection test and emotional face recognition by attentionalbias, and provide a new method for the screening of clinical attention bias.Methods32cases of schizophrenes and32normal persons(control group), whoseage,educational degree, the grade of Mini-mental Status Examination were matchable,were comparatively measured by emotional chimeric facial test and line bisection test.The line bisection test: two groups marked the subjective midpoint of the segmentlength20cm, and observe the segment offset and drift rate. Emotional chimeric facestest: two groups were to require the first after Benton face recognition test assessment toproperly identify the range of those that can correctly identify the human facial features,choose the neutral faces of the people in the gallery of the standard face positiveemotion faces (happy) and negative emotional faces (anger, fear) graphics, the graphicsare along the midline incision, and graphics of neutral faces with different emotionalfaces graphic symmetrical splicing, synthesis are mirror images the two faces of theupper and lower place constitute a chimeric picture, and based on different emotionsconstitute a set of emotions (happy, anger, fear) chimeric group of pictures, each group have their own32pictures. Use of computer-generated random presents a variety ofemotional pictures group, to observe and calculate the offset value and offset raterespectively. Compare the test results are correlated.Results The line bisection test, the segment length20CM, the offset and drift rate ofthe two groups were negative, but the offset rate of the patient group compared withnormal control group, the difference was statistically different (Z=-3.56, P <0.01).Emotional Chimeric Faces Test, There was no statistic difference in the two groups inBenton Facial Recognition Test(BFRT)（P>0.05）. Compared with the normal controlgroup, schizophrenes in the happy emotional chimeric facial test and line bisection testrevealed apparent left attentional bias, with statistic difference(P <0.01); and the angryand fearful emotions chimeric faces test, the patient group offset rate, compared withthe control group, no statistically significant difference (P>0.05). Furthermore, the biasrates between happy emotional chimeric face and line bisection in schizophrenes existedthe relativity(r=0.68，P <0.01).ConclusionSchizophrenes apparent left attentional bias in happy emotional chimeric face, thischaracteristics and the line bisection test results the same line, and two kinds of tests arepositively correlated, which reminds patients of spacial attention damage that may berelated to functional disorder of left cerebral hemisphere.No significant differencebetween the two groups were in negative emotions (anger, fear) in the emotion chimericfaces test.Suggesting that patients may have negative emotional face recognition, thereare certain obstacles.