Human-Computer Interaction: Ergonomics and User Interfaces - Vol. 1

By Hans-Jörg Bullinger; Jürgen Ziegler | Go to book overview

brain waves (p < 0.01); (ii) changes in the value of range of LF to HF heart rates i.e. the autonomous nerve index (p < 0.05).

On the basis of GSR (Max-Min) (p < 0.05) it was found that display B and display C were almost the same in the depth of relaxation achieved, both being more effective than display A. However no significant difference between B and C was found based on GSR values. One reason may be that display C was not given enough scope for the special functions for which it was designed. Other factors might influence the GSR results. For example, the brain wave monitoring hat might have been too tight or the unfamiliar monitoring equipment may have affected GSR levels.


4
Conclusion

First we proposed a unique strategy, "break monitoring", for physiological measurements. The experiment demonstrates that displays C and B (especially Q were more comfortable than display A. These displays were intermittently radiating the far infrared rays from the cathode ray tube (CRT). The tube surfaces of the C and B displays are coated with aluminium trioxide (Al203) which strongly radiates the far infrared rays to the side of the tube. Based on these results we can say that these displays reduce problems such as tiredness and stress compared to the normal displays of the type A used in this experiment.

We believe that our proposal and the results can impact research on user interface comfort levels.


5
References

Tamura, H. ( 1998). Human interface. Omen Publish. 61-65.

Ohsuga, M ( 1993). "To evaluate the workload with index of autonomous nerve system". Proc. of the Society of Instrument and Control Engineers. 29-8, 979- 986.

Andreassi, J. L. ( 1995). Psychophysiology: Human Behavior & Physiological Response (The Third Edition). Lawrence Erlbaum Associates, Publishers Hove, UK, 21-25, 166-171.

Takajima, H. ( 1996). Easy to learn far-Infrared ray engineering. Kogyo Chosakai Publishing Co., Ltd..

Takeuchi .T., Takeuchi. A., Yokoyama. M. ( 1996). Clinical experiences of farInfrared whole body hyperthermia by the use of RHD2002, Proc. of the 7th "International Congress on Hyperthermic Oncology", 272-274.

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