| Document ID (ISN) | 69606 |
| CIS number |
97-1360 |
| ISSN - Serial title |
0007-9952 - Cahiers de notes documentaires - Hygiène et sécurité du travail |
| Year |
1997 |
| Convention or series no. |
|
| Author(s) |
Salsi S., et al. |
| Title |
Contrast threshold changes during a long working session on visual display terminals |
| Original title |
Variations du seuil de contraste au cours d'un travail de longue durée sur écran de visualisation [in French] |
| Bibliographic information |
2nd Quarter 1997, No.167, Note No.2051-167-97, p.275-284. Illus. 31 ref. |
| Abstract |
In order to evaluate the visual fatigue due to work on visual display units (VDUs), a contrast-threshold measurement method was developed. An experimental VDU workstation was set up in a laboratory. Test subjects performed data control tasks for a period of 3h. During this exercise, contrast thresholds, functional performance in a serial perceptual discrimination test and cerebral activity (by electroencephalogram) were measured every 30min. It is shown that contrast threshold increases may constitute an early warning sign of visual fatigue in VDU work. |
| Descriptors (primary) |
visual fatigue; visual display terminals; computer terminals |
| Descriptors (secondary) |
hazard evaluation; early symptoms |
| Document type |
D - Periodical articles |
| Country / State or Province | France |
| Subject(s) |
Lighting, colour and vision
|
| Broad subject area(s) |
Physiology, ergonomics
|
| Browse category(ies) |
Office work
Visual display terminals (VDTs)
Fatigue
|
