Objective To explore the role of FM100 Munsell color vision test (FM100HueTest) in the training of traditional Chinese medicine inspection skills. Methods A total of 98 cases of medical college students were selected as the test objects, and the color vision ability of the students was evaluated by using FM100 HueTest. After two weeks of color vision ability training, the total error score (TES) and color discrimination ability grades of the students before and after the training were compared. Color discrimination ability of hue. Results There was a statistically significant difference between the TES [(35.44±34.99) points] and the post-training TES [(17.31±21.92) points] of the Testers before training (P<0.01). After training, those with good color vision ability increased significantly (P<0.01); in the color discrimination ability of different hues, the improvement of red-yellow hue group was the most significant, and the difference was statistically significant compared with before training (P<0.01). 01). Conclusion FM100HueTest can objectively evaluate the color vision ability of medical students, and the color vision training by this method can effectively improve the color discrimination ability of medical students.
Color diagnosis is an important part of the teaching of TCM diagnostics. In the past, the knowledge of color diagnosis was mostly taught through words and pictures, and there has been no evaluation method for learning ability and learning effect. Before the color diagnosis, the color perception of each student should be known for targeted training. After training, effective methods should also be used to evaluate the learning effect. Modern research on color science has proved [1] that people's color discrimination ability can be measured, and the commonly used color discrimination ability test method is FM100 Munsell color vision test (FM100 HueTest). FM100HueTest can prompt the participants whether they have normal color discrimination ability, as well as the specific difficulty of color discrimination, and can be used for training to improve color discrimination ability. At present, this method has been applied in many fields such as printing and dyeing, printing, fine arts, medicine and education [2-4]. This study will
The FM100HueTest method introduces the skill teaching and training of traditional Chinese medicine inspection. On the basis of measuring the color discrimination ability of medical students, through color vision training, the color discrimination ability of medical students can be improved, aiming to lay a good foundation for the skill teaching and training of face color diagnosis and tongue color diagnosis.
1 Materials and methods
1.1 General information
A total of 98 undergraduates and postgraduates selected for the course "Research on Diagnosis of Traditional Chinese Medicine" in Beijing University of Traditional Chinese Medicine from March to July 2011, including 44 males and 54 females; 95 undergraduates and 3 postgraduates; 16 9 students aged 19 to 19, 85 students aged 20 to 29, and 4 students aged 30 to 39; all students had no abnormal color vision.
1.2 Test software
Use X-Rite [5] (X-Rite) company's FM100HueTest online testing software. FM100HueTest online test consists of 80 moving color blocks and 8 fixed color blocks, all color blocks are divided into 4 groups: red-yellow hue group (group 1), yellow-green hue group (group 2), green-blue hue group Hue group (group 3), blue-red hue group (group 4). The color blocks at both ends of each group are fixed, and the rest of the color blocks are arranged in random order at the beginning of the test. Participants are required to arrange them in the correct order within the specified time. The test software automatically calculates the
The Tester's total error score (Testing Error Score, TES) and the color mixing zone, the type and degree of color vision abnormality of the person with color vision abnormality.
1.3 Research methods
Teachers who have received professional color management training will guide all the test takers to learn how to use the FM100HueTest online test. After completing the test, the test takers will use the computer to complete the online test independently, obtain the initial color discrimination score, and save it in the computer. Raw data for the first test.
After completing the initial assessment of color discrimination, all participants used the FM100HueTest system for a two-week color discrimination training, no less than 5 times a week, and completed 3 rounds of all hue permutation training independently each time, and FM100HueTest was repeated two weeks later Measurement. Comparing the TES before and after training, the grading of color discrimination, and the level of color discrimination of different tones to evaluate the training effect.
1.4 Evaluation of color discrimination
Referring to literature [5], the lower the TES, the better the color discrimination. Grading standard of color discrimination ability: 0-19 points for good color discrimination ability; 20-100 points for normal color discrimination ability; >100 points for poor color discrimination ability.
SPSS13.0 statistical software was used for statistical analysis. The data were tested by Levene’s homogeneity of variance test. The variances were homogeneous. The measurement data was tested by independent sample t test, expressed as mean ± standard deviation (x x ± s), and the count data were expressed by chi-square. test.
1.5 Statistical methods
2 results
2.1 Comparison of color discrimination ability of participants of different genders
Before carrying out color vision ability training, it was first investigated whether there is a difference in the color discrimination ability of men and women. The results showed that the male TES was (36.32±34.17) points, and the female TES was (34.72±35.94) points, and there was no significant difference between them (P>0.05). 2.2 Comparison of the color discrimination ability of the participants before and after training The TES of the participants before the training was (35.44±34.99) points, and the TES after the training was (17.31±21.92) points. Compared with before training, TES decreased significantly after training, and the difference was statistically significant (P<0.01). 2.3 Comparison of color discrimination before and after training
Table 1 shows that compared with pre-training, those who are good after training are significantly increased (P<0.01); those with poor color discrimination are significantly reduced (P<0.05). 2.4 Comparison of the color discrimination ability of different hues before and after training of the test participants Table 2 shows that compared with before training, the color discrimination ability of groups 1, 3 and 4 after training was significantly improved (P<0.05 or P<0 .01), the color discrimination ability of group 2 improved, and the difference was not statistically significant compared with that before training (P>0.05).
3 discussions
FM100HueTest was designed by Farnsworth in 1943 based on the principle of color rendering and selected standard Munsell color samples. Since the Munsell color maintains a high degree of consistency with human color vision [6], and the color difference of adjacent color blocks tested by FM100HueTest is very small, the sensitivity is high [7]. TCM diagnosis methods rely on the doctor's sensory organs to collect information. The formation of TCM facial complexion and tongue color diagnosis theory and the accumulation of experience cannot be separated from the participation of human psychological activities and human eye color and visual functions. Inspection uses the doctor's vision, an important component of which is color vision. As a kind of feeling, color vision is the result of psychological activities. Psychological research on color vision has confirmed that it has a memory function, which can be described by psychophysical quantities, and has strong plasticity. With the help of hue matching training and other methods, psychophysical quantities can be improved, that is, people's color perception can be improved. Perceptual ability [8]. In this study, the training of color vision ability is taken as the basic training method , starting from improving students' ability to distinguish colors, and establishing a color vision training and objective evaluation method for inspection teaching.
This study found that the average value of TES, which reflects the color vision ability of the participating students, decreased significantly after training. After Chinese medicine students received color discrimination training, their color vision ability has been effectively improved on the whole. With the decrease of the average value of TES, the number of students with good color discrimination ability has increased by 21%. It also provides an objective quantitative evaluation and training method for the training of traditional Chinese medicine inspection skills.
As a simple and effective tool for distinguishing color discrimination ability, FM100HueTest can not only provide the type of abnormal color discrimination ability, but also provide the specific status of color discrimination ability of different hues [9-10]. We analyzed the difficulty of color discrimination of the participants, and the hue closely related to facial complexion diagnosis and tongue diagnosis in traditional Chinese medicine is group 1 in the FM100 HueTest test. After training, among the four groups, the color vision ability of group 1 improved most significantly , which further illustrates the unique value of this training in improving the learning effect of inspection skills. However, the acquisition of color discrimination ability varies from person to person, and is related to students' visual characteristics, psychological factors, and training intensity. At the same time, it is strictly restricted by the diagnostic theory of complexion and tongue color in traditional Chinese medicine. It has not been effectively improved, which may be due to the above reasons, and it is worth further research. In the future, on the basis of this study, we will set up a step-by-step training program for color diagnosis skills, in order to further improve the actual effect of inspection skills teaching.
