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- Knez, Igor, 1959-
(författare)
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Changes in females' and males' positive and negative moods as a result of variations in CCT, CRI and illuminance levels.
- 1997
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Ingår i: Right Light 4 Proceedings.. ; , s. 149-154
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Konferensbidrag (refereegranskat)abstract
- Knez (1995a) reported two experiments on the indirect, non-visual, psychological effects of the office lighting which varied correlated colour temperature (CCT), colour rendering index (CRI), illuminance and gender ?in a factorial, between-subject, experimental design (Kirk, 1968). The separate analyses of these experiments did not, however, enable a conclusive interpretation of the CRI parameter?s impact on subjects? emotional state. As a follow-up analysis, the present paper synthesised statistically the experiments reported in Knez (1995a) into one experiment. This revealed several new results, showing a combined impact of the CCT, CRI and illuminance parameters on females? and males? positive and negative mood.
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| 2. |
- Knez, Igor, 1959-, et al.
(författare)
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Effects of office lighting on mood and cognitive performance, and a gender effect in work-related judgement
- 1998
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Ingår i: Environment and Behavior. - : SAGE Publications. - 0013-9165 .- 1552-390X. ; 30:4, s. 553-567
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Tidskriftsartikel (refereegranskat)abstract
- The study presents an investigation of the effects of the recommended office lighting on subjects' mood and cognitive performance in the physical setting of an office. In addition, a gender effect in the performance appraisal task was examined, both as a between- and within-subject factor. The results showed no significant effect of the lighting on the performance of cognitive tasks. However, an interaction between gender and color temperature on mood showed that 3000K (more reddish) and 4000K (more bluish) office lighting may communicate different affective loadings or meanings to each gender. The cognitive workload induced by almost 2 hours of intellectual work diminished the subjects' positive mood and augmented a negative mood. Moreover, independently of their gender, the raters evaluated the neutral female significantly different from the neutral male ratee. Implications of these findings for the mood effects of indoor lighting and the gender effect in work-related judgment are discussed.
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