Eye Movement Research On Graphics Recognition Of Different Skilled Mechanical Majors

In this paper,two experiments were made to explore the differences in the pattern recognition ability and the eye movement strategies of the recognition of the mechanical professional students with different skill levels.At the same time,the influence of the figure type and presentation mode on the recognition performance and the eye movement strategy of the subjects with different skill levels was also investigated.Through the Eprime quickly presenting materials,adopted 2(skill level: high,low)X 2(graphics type: physical map,general three-dimensional map)X 2(presentation mode: non rotation,rotation)X 2(gender: male,female)four factor mixed experimental design,the experiment one was carried to inspect the differences of the correct rate and reaction time in recognition of different skilled subjects.Among them,the skill level and gender are the between-subject factor,while the figure type and the presentation mode are the within-subject factors.Using Eyelink II helmet eye movements,adopted 2(skill levels: high,low)X3(graphics type: workpiece map,physical map,general three-dimensional map)X2(presentation mode: non rotation,rotation)X 2(gender: male,female)four factor mixed experimental design,the experiment two was conducted to investigate the differences of correct rate and eye movement index in recognition of participants with different skill levels.Among them,the skill level and gender are the between variables,while the pattern type and the recognition method are the internal variables.The results showed that:(1)the correct rate of subjects with high skill level was significantly higher than that of low skilled subjects;(2)in memorizing phase,the IA_dwell_time and IA_first_fixation_duration of subjects with high skill level are longer than these of low skilled subjects,the IA_fixation_count of subjects with high skill level is more,the average_saccade_amplitude of subjects with high skill level is bigger;in recognition phase,the IA_dwell_time and IA_first_fixation_duration of subjects with high skill level are shorter,the IA_fixation_count of subjects with high skill level is more,the average_saccade_amplitude of subjects with high skill level is smaller;(3)the S(in memorizing phase)-IA_fixation_% and Z(in recognition phase)-IA_fixation_% of subjects with high skill level are lower,the S-blink_count of subjects with high skill level is more;(4)for the participants with high skill level,the Z-IA_dwell_time in the rotating presentation mode is longer than in the non rotating presentation mode,the Z-IA_fixation_count in the rotating presentation mode is more,the Z-IA_first_fixation_duration in the rotating presentation mode is shorter;for the participants with low skill level,the Z-IA_fixation_count in the rotating presentation mode is less,theZ-IA_first_fixation_duration in the rotating presentation mode is shorter;(5)for the subjects with high skill level,the Z-IA_fixation_% in the rotating presentation mode is more than in the non rotation presentation mode,the Z blink_count in the rotating presentation mode is less;(6)for the subjects with high skill level,workpiece map <general three-dimensional map <physical map on the S-IA_dwell_time;for the subjects with low skill level,workpiece map <general three-dimensional map and physical map on the S-IA_dwell_time;for all the subjects,general three-dimensional map >workpiece map and physical map on the Z-IA_dwell_time;for the subjects with high skill level,physical map <workpiece map and general three-dimensional map on the S-IA_first_fixation_duration;for the subjects with low skill level,workpiece map >general three-dimensional map and physical map on the S-IA_first_fixation_duration;for the subjects with high skill level,general three-dimensional map <workpiece map and physical map on the Z-IA_first_fixation_duration;for the subjects with low skill level,workpiece map >general three-dimensional map and physical map on the Z-IA_first_fixation_duration;for the subjects with high skill level,physical map >workpiece map >general three-dimensional map on the S-IA_fixation_count;for the subjects with low skill level,physical map >general three-dimensional map >workpiece map on the S-IA_fixation_count;for all the subjects,general three-dimensional map >workpiece map > physical map on the Z-IA_fixation_count;for the subjects with high skill level,physical map >workpiece map > general three-dimensional map on the S-average_saccade_amplitude;for the subjects with low skill level,workpiece map >physical map >general three-dimensional map on the S-average_saccade_amplitude;(7)for all the subjects,physical map >general three-dimensional map >workpiece map on the S-IA_fixation_%;for the subjects with high skill level,general three-dimensional map >workpiece map >physical map on the Z-IA_fixation_%;for the subjects with low skill level,general three-dimensional map >workpiece map and physical map on the Z-IA_fixation_%;for the subjects with high skill level,workpiece map >physical map >general three-dimensional map on the S-blink_count;for the subjects with low skill level,workpiece map >physical map and general three-dimensional map on the S-blink_count.According to the above results,it can be concluded that: the graphics recognition ability of subjects with high skill level is higher,and the expertise effect has a certain transfer;the graphics recognition strategy of subjects with high skill level is more effective;the ability in graphic encoding and graphic information extraction of subjects with high skill level may be higher;the influence of presentation mode and graphic type on subjects with different skill levels is different.