visual apperception test
2.Through detailed review on related literatures, the study shows the history, types, characteristics , and the classification of the defense mechanism ,together with some study on it in and outside. At the same time, the content, characteristics,and the domestic research of the thematic apperception test (TAT) is briefly presented .
10.Methods:By Benton Visual Retention Test (BVRT) including three means of C, D, and E, Trail Making Test, and Symbol-Digit Modalities Test (SDMT), 50 cases of ADHD and 50 cases of normal children were examined in their visual consciousness, visual memory, visual space structure, visual motion attention, and visual scanning et al.

