Browse > Article
http://dx.doi.org/10.14695/KJSOS.2018.21.4.37

Effect of LED Illuminance and Task Difficulty on Long-term Memory  

Lee, Chung-Won (Department of Industrial & Systems Engineering, Kongju National University)
Kim, Jin-Ho (Department of Industrial & Systems Engineering, Kongju National University)
Publication Information
Science of Emotion and Sensibility / v.21, no.4, 2018 , pp. 37-42 More about this Journal
Abstract
This study was conducted to evaluate the effects of LED illumination and task difficulty on a person's long-term memory. Illumination levels of 400 lx and 1,000 lx were employed in this study, and task difficulty was set at learning 4 words (easy task) and 7 words (difficult task). The person's retention rate of the learned task was designated as a dependent variable. A total of 64 subjects participated in this study, and 16 participants assigned to each of the four sets of conditions. The results indicated that the retention rate for the difficult task under relatively dark 400 lx conditions was 68.49%, while and the retention rate was higher than 56.03% for 1,000 lx conditions. In addition, for the easy task, the retention rate was 67.97% and 56.55% for the 400 1x and the 1,000 1x conditions, respectively. However, the interaction between illumination and task difficulty was not statistically significant. The study results further suggested that long-term memory can be effective in relatively dark conditions and indirectly suggests that long-term memory may not follow the Yokers-Dodson law.
Keywords
LED Light; Long-term Memory; Word Fragment Complete Task; Task Difficulty; Illuminance; Yokers-Dodson Law;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Anderson, K. J. (1994). Impulsivity, caffeine, and task difficulty. A within-subjects test of the Yerkes- Dodson law. Personality and Individual Differences, 16, 813-829. DOI: 10.1016/0191-8869(94)90226-7   DOI
2 Bradley, M. M., Greenwald, M. K., & Lang, P. J. (1992). Remembering pictures: Pleasure and arousal in memory. Journal of Experimental Psychology: Learning Memory and Cognition, 18, 379-390. DOI: 10.1037/0278-7393.18.2.379   DOI
3 Cahill, L., Prins, B., Weber, M., & McGaugh, J. L. (1994). Beta-adrenergic activation and memory for emotional events. Nature, 371, 702-704. DOI: 10.1038/371702a0   DOI
4 Cajochen, C. (2007). Alerting effects of light. Sleep Medicine Review, 11(6), 453-464. DOI: 10.1016/j.smrv.2007.07.009   DOI
5 Chellappa, S. L., Gordijn, M. C. M., & Cajochen, C. (2011). Can light make us bright? Effects of light on cognition and sleep. Progress in Brain Research, 190, 119-133. DOI: 10.1016/B978-0-444-53817-8.00007-4
6 Chong, W. S., Kwon, T. K., & Kim, N. G. (2007). Study of the effect of cognitive by color light stimulation. Journal of the Korean Society for Precision Engineering, 24(10), 131-136.
7 Christiansen, S. A. (1992). Emotional stress and eyewitness memory: A critical review. Psychological Bulletin, 112, 284-309.   DOI
8 Han, S. S. (2010). Emotional lives of students in the classroom space LED fluorescent lamp for sensitivity lighting. Journal of Korea Academia- Industrial Cooperation Society, 11(9), 3446-3450. DOI: 10.5762/KAIS.2010.11.9.3446   DOI
9 Heuer, F., & Reisberg, D. (1990). Vivid memories of emotional events: The accuracy of remembered minutiae. Memory and Cognition, 18, 496-506. DOI: 10.3758/BF03198482   DOI
10 Hong, K. J., Kim, S. M., Lee, B. C., Lee, D. H., & An, S. K. (2009). The effect of color therapy on stress and electroencephalogram variation. Korean Journal of Aesthetics and Cosmetics Society, 7(1), 51-59.
11 Humphreys, M. S., & Revelle, W. (1984). Personality, motivation, and performance: A theory of the relationship between individual differences and information processing. Psychological Review, 91, 153-184. DOI: 10.1037/0033-295X.91.2.153   DOI
12 Jee, S. D., & Kim, C. B. (2011). Evaluation of concentration and visual discrimination according to the color temperatures of LED illumination. The Journal of Korean Institute of Educational Facilities, 18(3), 23-33.
13 Jee, S. D., & Kim, C. B. (2014). Electroencephalogram analysis on learning factors during relaxed or concentrated attention according to the color temperatures of LED illuminance. The Journal of Korean Institute of Educational Facilities, 21(6), 33-42.   DOI
14 Yerkes, R. M., & Dodson, J. D. (1908). The relation of strength of stimulus to rapidity of habit-formation. Journal of Comparative Neurology and Psychology, 18(5), 459-482. DOI: 10.1002/cne.920180503   DOI
15 Jung, H. C., Kim, J. H., & Lee, C. W. (2017). The effect of the illuminance of light emitting diode (LED) lamps on long-term memory. Displays, 49, 1-5. DOI: 10.1037/0033-295X.91.2.153   DOI
16 Kensinger, E. A., Garoff-Eaton, R. J., & Schacter, D. L. (2006). Memory for specific visual details can be enhanced by negative arousing content. Journal of Memory and Language, 54(1), 99-112. DOI: 10.1016/j.jml.2005.05.005   DOI
17 Ochsner, K. N. (2000). Are affective events richly 'recollected' or simply familiar? The experience and process of recognizing feeling past. Journal of Experimental Psychology: General, 129, 242-261. DOI: 10.1037/0096-3445.129.2.242   DOI
18 Park, H. S., Lee. C. S., Jang, J. S., Lee, K. H. & Kim, H. T (2011). A consideration and prospects of psychological research on lighting. Korean Journal of Psychology: General, 30(1), 23-43.