| ID (ISN) del documento | 48854 |
| Número CIS |
88-329 |
| ISSN - Título de la serie |
0047-1879 - Japanese Journal of Industrial Health - Sangyō-Igaku |
| Año |
1986 |
| Número de serie |
|
| Autor(es) |
Misawa T., Shigeta S. |
| Título |
An experimental study of work load on VDT performance - Part 1. Effects of polarity of screen and colour of display |
| Título original |
VDT sagyō ni okeru sagyō futan ni kansuru jikkenteki kenkyū. Dai-1-hen. VDT gamen no hyōji-kyokusei to hyōji-shoku no eikyō [en japonés] |
| Información bibliográfica |
Nov. 1986, Vol.28, No.6, p.420-427. Illus. 27 ref. |
| Resumen |
Eight healthy male college students searched for e's in given sequences of letters displayed on a CRT and converted them to 5's by keyboard operations. Four levels of screen image (positive and negative screens and green and white coloured displays) were adopted and 2h were given for each operation. Critical flicker fusion frequencies (CFF), near point distance, accommodation time, subjective fatigue symptoms, heart rate, electromyogram in upper limbs and performance score were measured. Decrease in CFF, extension of near point distance and increase in complaints of subjective fatigue related to visual function were observed under all experimental conditions. Greater extension of near point distance and more complaints of subjective fatigue were observed in subjects using the green display than in those using the white display. This suggests that the visual load using the green display is larger than that using the white display. A larger decrease in CRT and greater complaints of subjective fatigue occurred with negative screens than with positive screens. This suggests that the visual load using the negative screen is larger than that using the positive screen. |
| Descriptores (primarios) |
carga física; carga de trabajo mental; mecanografía; pantallas de visualización; fatiga visual |
| Descriptores (secundarios) |
investigaciones sobre el hombre; valoracion de la capacidad de trabjo |
| Tipo de documento |
D - Artículos periódicos |
| Tema(s) |
Iluminación, color, visión
|
| Broad subject area(s) |
Fisiología, ergonomía
|
| Navegación por categoria(s) |
Office work
Visual display terminals (VDTs)
Mental workload
Fatiga
|
