A Study on the Auditory-Visual Fatigue Classification Validation Based on the Working Memory Task.

In this research, three experiments were conducted to investigate the consistency of information processing in visual and auditory working memory tasks. On this basis, the comprehensive exploration and verification for the fatigue classification were carried out in the visual and auditory channels. It is shown from the experiments that: (1) Similar accuracy can be obtained in information processing of visual and auditory channels, however, processing time of auditory channel was longer than that of visual channel when the working memory capacity is 3 (for the N-back test); (2) the working memory task with the duration of 5 min, 30 min and 60 min can be utilized to induce low-level, medium-level and high-level fatigue respectively, which has been verified through the experiment III comprehensively; (3) there were some differences in information processing between visual channel and auditory channel, and it is more likely to accumulate fatigue for visual channel than that for auditory channel.