Lighting, Motivation, and Fatigue
Most people in industrialized countries spend a large part of their life indoors and are exposed to artificial lighting. Thus, it is crucial to investigate physiological and psychological influences of artificial lighting, particularly in the current advent of new technologies for light emitting diodes. We are interested in how ambient lighting can affect motivation and more specifically mental effort, and whether light can counteract motivational deficits caused by fatigue (mental fatigue or fatigue due to sleep restriction). We are testing impact of different lighting parameters, like spectral properties and illuminance levels. We employ methods from cognitive psychology, cardiovascular physiology, and neuroscience.
- “Influence of lighting on mental effort and on motivational deficit caused by fatigue” 2020-2024 (SNSF)
The aim of this project is to test the facilitating effects of light (spectral wavelength composition and illuminance parameters) under mental fatigue and sleep restriction conditions.
- “Neurovascular and cardiovascular responses to a cognitive challenge under different ambient lighting conditions” 2019-2020 (EMBO)
- “Light level and effort-related cardiovascular response” 2018-2019 (Research Fund by the University of Basel)
- “Effects of lighting on listening effort and listening fatigue” 2017-2018 (Biäsch-Stiftung)
- “Lighting and effort-related cardiovascular response” 2016-2018 (SNSF)
Dr. Ruta Lasauskaite
PhD student, psychologist
Former interns: Alessia Giezendanner, Esther Haselhoff, Alina Burkart, Sophie Schallberger
Dr. Michael Richter, Liverpool John Moores University, UK The Effort Lab
Prof. Rex A. Wright, University of North Texas, USA Wright Research Lab
Lasauskaite, R., Hazelhoff, E.M., Cajochen, C. (2018). Four minutes might not be enough for color temperature of light to affect subjective sleepiness, mental effort, and light ratings. Lighting Research & Technology. doi:10.1177/1477153518796700
Lasauskaite, R., Cajochen, C. (2018). Influence of lighting color temperature on effort-related cardiac response. Biological Psychology, 132, 64-70. doi:10.1016/j.biopsycho.2017.11.005
Published conference contributions
Lasauskaite, R., & Cajochen, C. (2018, September). Subjective sleepiness and waketime are related to light perception. In Journal of Sleep Research (Vol. 27).
Lasauskaite, R., Richter, M., & Cajochen, C. (2016, January). Effects of Lighting Color Temperature on Effort Intensity for Cognitive and Listening Tasks. In Neuropsychobiology (Vol. 74, No. 4, pp. 243-244).
Lasauskaite, R., Richter, M., & Cajochen, C. (2017, December). Color temperature of light and effort-related cardiac response: Effecs for cognitive and listening tasks. In Psychophysiology (Vol. 54, pp. S130-S130).