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Chellappa Sarah Laxhmi

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Main Referenced Co-authors
Vandewalle, Gilles  (42)
Maquet, Pierre  (38)
Phillips, Christophe  (34)
Dijk, Derk-Jan (28)
Archer, Simon (25)
Main Referenced Keywords
Humans (13); Female (8); Male (8); Sleep (8); Adult (7);
Main Referenced Unit & Research Centers
GIGA CRC (Cyclotron Research Center) In vivo Imaging-Aging & Memory - ULiège [BE] (8)
Main Referenced Disciplines
Neurology (33)
Human health sciences: Multidisciplinary, general & others (22)
Neurosciences & behavior (16)
Life sciences: Multidisciplinary, general & others (5)
Engineering, computing & technology: Multidisciplinary, general & others (4)

Publications (total 73)

The most downloaded
3294 downloads
Gabel, V., Maire, M., Reichert, C. F., Chellappa, S. L., Schmidt, C., Hommes, V., Viola, A. U., & Cajochen, C. (2013). Effects of Artificial Dawn and Morning Blue Light on Daytime Cognitive Performance, Well-being, Cortisol and Melatonin Levels. Chronobiology International, 30 (8), 988-97. doi:10.3109/07420528.2013.793196 https://hdl.handle.net/2268/171514

The most cited

372 citations (Scopus®)

Chellappa, S. L., Steiner, R., Blattner, P., Oelhafen, P., Gotz, T., & Cajochen, C. (2011). Non-visual effects of light on melatonin, alertness and cognitive performance: can blue-enriched light keep us alert? PLoS ONE, 6 (1), 16429. doi:10.1371/journal.pone.0016429 https://hdl.handle.net/2268/171517

Chellappa, S. L., Viola, A. U., & Mongrain, V. (2023). Circadian rhythm sleep disorder: genetic and environmental factors. In Encyclopedia of Sleep and Circadian Rhythms: Volume 1-6, Second Edition. Elsevier. doi:10.1016/B978-0-12-822963-7.60002-6

Muto, V., Frasso, G., Jaspar, M., Meyer, C., Chellappa, S. L., LY, J., Gaggioni, G., Berthomier, C., Brandewinder, M., Phillips, C., Collette, F., Archer, S., Dijk, D.-J., MAQUET, P., Vandewalle, G., Schmidt, C., & Hammad, G. (23 September 2020). Impact of the PER3 VNTR polymorphism on delta power across different sleep contexts [Paper presentation]. 25th congress of the European Sleep Research Society.

Deantoni, M., Muto, V., Hammad, G., Berthomier, C., Baillet, M., Reyt, M., Jaspar, M., Meyer, C., Vanegroo, M., Lambot, E., Chellappa, S. L., Brandewinder, M., Degueldre, C., Luxen, A., SALMON, E., Phillips, C., Balteau, E., Collette, F., Dijk, D.-J., ... Schmidt, C. (22 September 2020). Association between sleep regulation and neuroimaging-derived myelin markers [Paper presentation]. 25th Congress of the European Sleep Research Society ESRS.

Berthomier, C.* , Muto, V.* , Schmidt, C., Vandewalle, G., Jaspar, M., Devillers, J., Gaggioni, G., Chellappa, S. L., Meyer, C., Phillips, C., Salmon, E., Berthomier, P., Prado, J., Benoit, O., Bouet, R., Brandewinder, M., Mattout, J., & Maquet, P. (2020). Exploring scoring methods for research studies: Accuracy and variability of visual and automated sleep scoring. Journal of Sleep Research. doi:10.1111/jsr.12994
Peer reviewed
* These authors have contributed equally to this work.

Muto, V., Berthomier, C., Schmidt, C., Vandewalle, G., Jaspar, M., Devillers, J., Gaggioni, G., Chellappa, S. L., Meyer, C., Phillips, C., Salmon, E., Berthomier, P., Prado, J., Benoit, O., Brandewinder, M., Mattout, J., & MAQUET, P. (2019). Looking for a reference for large datasets: relative reliability of visual and automatic sleep scoring. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/242962. doi:10.1101/576090

Gaggioni, G., Chellappa, S. L., LY, J., Coppieters't Wallant, D., Sarasso, S., Rosanova, M., Archer, S., Maquet, P., Dijk, D., Massimini, M., Casali, A., Phillips, C., & Vandewalle, G. (15 June 2016). Sleep deprivation affects brain global cortical responsivenes [Paper presentation]. SLEEP 2016 - APSS Annual meeting.

Gaggioni, G., Ly, J., Chellappa, S. L., Rosanova, M., Sarasso, S., Archer, S., Phillips, C., Dijk, D.-J., Maquet, P., Moran, R., Massimini, M., & Vandewalle, G. (15 March 2016). Human cortical excitability and excitation/inhibition balance is set by the circadian timing system [Poster presentation]. Sleep Regulation & Function - Gordon Research Conference, Galveston, TX, United States.

Meyer, C.* , Muto, V.* , Jaspar, M.* , Kussé, C., Lambot, E., Chellappa, S. L., Degueldre, C., Balteau, E., Luxen, A., Middleton, B., Archer, S., Collette, F., Dijk, D.-J., Phillips, C., MAQUET, P., & Vandewalle, G. (2016). Seasonality in human cognitive brain responses. Proceedings of the National Academy of Sciences of the United States of America. doi:10.1073/pnas.1518129113
Peer Reviewed verified by ORBi
* These authors have contributed equally to this work.

Gaggioni, G., Chellappa, S. L., LY, J., Coppieters't Wallant, D., Sarasso, S., Rosanova, M., Archer, S., Maquet, P., Dijk, D.-J., Massimini, M., Casali, A. G., Phillips, C., & Vandewalle, G. (2016). Sleep deprivation affects brain global cortical responsiveness [Poster presentation]. SLEEP 2016 - APSS annual meeting.

Coppieters't Wallant, D., Muto, V., Gaggioni, G., Jaspar, M., Chellappa, S. L., Meyer, C., Vandewalle, G., Maquet, P., & Phillips, C. (January 2016). Automatic artifacts and arousals detection in whole-night sleep EEG recordings. Journal of Neuroscience Methods, 258. doi:10.1016/j.jneumeth.2015.11.005
Peer Reviewed verified by ORBi

Muto, V., Jaspar, M., Meyer, C., Kussé, C., Chellappa, S. L., Degueldre, C., Balteau, E., Shaffii-Le Bourdiec, A., Luxen, A., Middleton, B., Archer, S., Phillips, C., Collette, F., Vandewalle, G., Dijk, D.-J., & Maquet, P. (2016). Circadian and homeostatic sleep pressure modulate fMRI correlates of vigilant attention. Journal of Sleep Research, 25 (s1).
Peer Reviewed verified by ORBi

Vanvinckenroye, A., Vandewalle, G., Phillips, C., & Chellappa, S. L. (2015). Eyes Open on Sleep and Wake: In Vivo to In Silico Neural Networks. Neural Plasticity. doi:10.1155/2016/1478684
Peer Reviewed verified by ORBi

Meyer, C., Muto, V., Jaspar, M., Kusse, C., Lambot, E., Chellappa, S. L., Degueldre, C., Balteau, E., Luxen, A., Middleton, B., Archer, S., Collette, F., Dijk, D.-J., Phillips, C., Maquet, P., & Vandewalle, G. (04 September 2015). Seasonality in human cognitive brain responses [Poster presentation]. Symposium "Sleep and aging: Perks for longevity?", Liège, Belgium.

Phillips, C., Chellappa, S. L., Ly, J., Gaggioni, G., Papachilleos, S., Borsu, C., Brzozowski, A., Rosanova, M., Sarasso, S., Archer, S., Dijk, D.-J., Massimini, M., Maquet, P., Moran, R., & Vandewalle, G. (2015). Neuronal excitation/inhibition balance is set by the need for sleep and the biological clock. NeuroImage.
Peer Reviewed verified by ORBi

Gaggioni, G., Ly, J., Chellappa, S. L., Coppieters't Wallant, D., Muto, V., Borsu, C., Papachilleos, S., Brzozowski1, A., Sarasso, S., Rosanova, M., Archer, S., Maquet, P., Dijk, D.-J., Phillips, C., Massimini, M., & Vandewalle, G. (27 January 2015). Human cortical excitability depends on time awake and circadian phase [Poster presentation]. Giga Day.

Gaggioni, G., Ly, J., Chellappa, S. L., Coppieters't Wallant, D., Muto, V., Borsu, C., Papachilleos, S., Brzozowski, A., Sarasso, S., Rosanova, M., Archer, S., Maquet, P., Dijk, D.-J., Phillips, C., Massimini, M., & Vandewalle, G. (15 January 2015). Human cortical excitability depends on time awake and circadian phase and is predicted by sleep slow-wave activity [Paper presentation]. 2015 Annual Joint CRPP Sleep and Health Symposium.

Ly, J., Chellappa, S. L., & MAQUET, P. (2015). Evolution of Treatment and Investigative Approaches in Sleep Medicine. In M. Billiard (Ed.), Sleep Medicine: a comprehensive guide. Elsevier Science.
Peer reviewed

Ly, J., Chellappa, S. L., & Maquet, P. (2015). Development and Impact of Brain Imaging Techniques. In Evolution of treatment and Investigate Approaches in Sleep Medicine". New York, United States: Springer Science.

Viola, A. U., Gabel, V., Chellappa, S. L., Schmidt, C., Hommes, V., Tobaldini, E., Montano, N., & Cajochen, C. (2015). Dawn simulation light: a potential cardiac events protector. Sleep Medicine, 16 (4), 457-61. doi:10.1016/j.sleep.2014.12.016
Peer Reviewed verified by ORBi

Gabel, V., Maire, M., Reichert, C. F., Chellappa, S. L., Schmidt, C., Hommes, V., Cajochen, C., & Viola, A. U. (2015). Dawn simulation light impacts on different cognitive domains under sleep restriction. Behavioural Brain Research, 281, 258-66. doi:10.1016/j.bbr.2014.12.043
Peer Reviewed verified by ORBi

Ziegler, E., Chellappa, S. L., Gaggioni, G., Ly, J., Vandewalle, G., André, E., Geuzaine, C.* , & Phillips, C.*. (December 2014). A finite-element reciprocity solution for EEG forward modeling with realistic individual head models. NeuroImage, 103, 542-551. doi:10.1016/j.neuroimage.2014.08.056
Peer Reviewed verified by ORBi
* These authors have contributed equally to this work.

Ly, J., Gaggioni, G., Chellappa, S. L., Papachilleos, S., Brzozowski, A., Borsu, C., Rosanova, M., Sarrasso, S., Archer, S. N., Dijk, D.-J., Phillips, C., MAQUET, P., Massimini, M., & Vandewalle, G. (04 October 2014). Human cortical excitability depends on time spent awake and circadian phase [Paper presentation]. Belgian Brain Council 2014.

Gaggioni, G., Ly, J., Coppieters't Wallant, D., Muto, V., Borsu, C., Papachilleos, S., Brzozowski, A., Sarasso, S., Rosanova, M., Archer, S., MAQUET, P., Dijk, D.-J., Phillips, C., Massimini, M., Vandewalle, G., & Chellappa, S. L. (October 2014). Sleep slow-wave activity predicts changes in human cortical excitability during extended wakefulness [Poster presentation]. Belgian Brain Council 2014, Ghent, Belgium.

Ly, J., Chellappa, S. L., Gaggioni, G., Papachilleos, S., Brzozowski, A., Borsu, C., Rosanova, M., Sarrasso, S., Archer, S. N., Dijk, D.-J., Phillips, C., MAQUET, P., & Vandewalle, G. (17 September 2014). Human cortical excitability depends on time spent awake and circadian phase [Paper presentation]. 22nd Congress of the European Sleep Research Society (ESRS) 2014, Tallinn, Estonia.

Coppieters't Wallant, D., Chellappa, S. L., Gaggioni, G., Jaspar, M., Meyer, C., Muto, V., Vandewalle, G., MAQUET, P., & Phillips, C. (17 September 2014). Automatic artifact detection for whole-night polysomnographic sleep recordings [Poster presentation]. 22nd Congress of the European Sleep Research Society, Tallinn, Estonia.

Ly, J., Chellappa, S. L., Gaggioni, G., Papachilleos, S., Brzozowski, A., Borsu, C., Rosanova, M., Sarrasso, S., Archer, S. N., Dijk, D.-J., Phillips, C., MAQUET, P., Massimini, M., & Vandewalle, G. (17 September 2014). Human cortical excitability depends on time awake and circadian phase [Paper presentation]. 22nd Congress of the European Sleep Research Society (ESRS) 2014, Tallinn, Estonia.

González y Viagas, M., Ly, J., Gaggioni, G., Meyer, C., Muto, V., Jaspar, M., Vandewalle, G., Maquet, P., Phillips, C., & Chellappa, S. L. (September 2014). Automatic biorythms description from actigraphic data [Poster presentation]. European Sleep research Society - ESRS, Tallinn, Estonia.

Chellappa, S. L., Viola, A., Schmidt, C., Bachmann, V., Gabel, V., Maire, M., Reichert, C., Valomon, A., Landolt, H. P., & Cajochen, C. (2014). Individual differences in the non-image frroming effects of light on human sleep. Journal of Sleep Research.
Peer Reviewed verified by ORBi

Gaggioni, G., Ly, J., Coppieters't Wallant, D., Muto, V., Borsu, C., Papachilleos, S., Brzozowski, A., Sarasso, S., Rosanova, M., Archer, S., MAQUET, P., Dijk, D.-J., Phillips, C., Massimini, M., Vandewalle, G., & Chellappa, S. L. (September 2014). Sleep slow-wave activity predicts changes in human cortical excitability during extended wakefulness [Poster presentation]. 22nd Congress of the European Sleep Research Society, Tallinn, Estonia.

Borsu, C., Gaggioni, G., Ly, J., Papachilleos, S., Brzozowski, A., Rosanova, M., Sarasso, S., Archer, S., Dijk, D.-J., Phillips, C., Maquet, P., Massimini, M., Chellappa, S. L., & Vandewalle, G. (September 2014). Cortical excitability dynamics of during sleep deprivation set PVT performance [Poster presentation]. European Sleep Research Society Symposium.

Chellappa, S. L., Ly, J., Meyer, C., Balteau, E., Delguedre, C., Luxen, A., Phillips, C., Cooper, H., & Vandewalle, G. (17 June 2014). Prior light history impacts on higher order cognitive brain function [Paper presentation]. Society for Biological Rhythms Symposium.

Chellappa, S. L., LY, J. (Other coll.), Gaggioni, G. (Other coll.), Archer, S. (Other coll.), Massimini, M. (Other coll.), Dijk, D.-J. (Other coll.), Maquet, P. (Other coll.), Phillips, C. (Other coll.), Moran, R. (Other coll.), & Vandewalle, G. (Other coll.). (16 June 2014). The circadian system sets the temporal organization of basic human neuronal function [Paper presentation]. Society for Biological Rhythms Symposium.

Chellappa, S. L., Schmidt, C., & Cajochen, C. (2014). Neurophysiological basis of sleep and wakefulness. In S. Garbarino (Ed.), Sleepiness and Human Impact Assessment. Springer Science.
Peer reviewed

Chellappa, S. L., Ly, J., Meyer, C., Balteau, E., Delguedre, C., Luxen, A., Phillips, C., Cooper, H., & Vandewalle, G. (2014). Prior light history impacts on higher order cognitive brain function [Paper presentation]. Belgium Brain Conference.

Chellappa, S. L., Viola, A. U., Schmidt, C., Bachmann, V., Gabel, V., Maire, M., Reichert, C. F., Valomon, A., Landolt, H.-P., & Cajochen, C. (2014). Light modulation of human sleep depends on a polymorphism in the clock gene Period3. Behavioural Brain Research, 271, 23-29. doi:10.1016/j.bbr.2014.05.050
Peer Reviewed verified by ORBi

Chellappa, S. L., Ly, J., Meyer, C., Balteau, E., Degueldre, C., Luxen, A., Phillips, C., Cooper, H., & Vandewalle, G. (2014). Photic memory for executive brain responses. Proceedings of the National Academy of Sciences of the United States of America, 4263. doi:10.1073/pnas.1320005111
Peer Reviewed verified by ORBi

Meyer, C., Jaspar, M., Muto, V., Kussé, C., Chellappa, S. L., Degueldre, C., Balteau, E., Luxen, A., Collette, F., Phillips, C., Middleton, B., Archer, S., Dijk, D.-J., & Maquet, P. (2014). Seasonal variation in human executive brain responses [Poster presentation]. 22nd Congress of the European Sleep Research Society.

Muto, V., Jaspar, M., Meyer, C., Shaffii-LeBourdiec, A., Kussé, C., Chellappa, S. L., Vandewalle, G., Degueldre, C., Luxen, A., Collette, F., Phillips, C., Middleton, B., Archer, S., Dijk, D.-J., & Maquet, P. (2014). Neural correlates of sustained attention under sleep deprivation during a constant routine: circadian and homeostatic interaction. Journal of Sleep Research.
Peer Reviewed verified by ORBi

Jaspar, M., Meyer, C., Muto, V., Shaffii-LeBourdiec, A., Chellappa, S. L., Kussé, C., Vandewalle, G., Collette, F., Middleton, B., Archer, S., Dijk, D.-J., & Maquet, P. (2014). Sleep loss changes executive brain responses in the wake maintenance zone. Journal of Sleep Research, 23 (1), 61.
Peer Reviewed verified by ORBi

Jaspar, M., Meyer, C., Muto, V., Shaffii-LeBourdiec, A., Chellappa, S. L., Kussé, C., Vandewalle, G., Collette, F., Middleton, B., Archer, S., Dijk, D.-J., & Maquet, P. (2014). Sleep loss changes executive brain responses in the wake maintenance zone [Paper presentation]. 22nd Congress of the European Sleep Research Society.

Borsu, C., Gaggioni, G., Ly, J., Papachilleos, S., Brzozowski, A., Rosanova, M., Sarasso, S., Archer, S., Dijk, D.-J., Phillips, C., Maquet, P., Massimini, M., Chellappa, S. L., & Vandewalle, G. (2014). Cortical excitability dynamics of during sleep deprivation set PVT performance [Paper presentation]. European Sleep Research Society Symposium.

Schmidt, C., Cajochen, C., & Chellappa, S. L. (2014). Circadian and homeostatic regulation of sleepiness and cognition and its neuronal underpinnings. In S. Garbarino (Ed.), Sleepiness and Human Impact Assessment. Springer Science. doi:10.1007/978-88-470-5388-5_4
Peer reviewed

Cajochen, C., Schmidt, C., & Chellappa, S. L. (2014). Two time pieces for sleep regulation: the circadian clock and the homeostatic hourglass. In S. Garbarino (Ed.), Sleepiness and Human Impact Assessment. Springer Science.
Peer reviewed

Chellappa, S. L., Ly, J., Meyer, C., Balteau, E., Delguedre, C., Luxen, A., Phillips, C., Cooper, H., & Vandewalle, G. (2014). Prior light history impacts on cognitive brain function [Paper presentation]. European Sleep Research Society Symposium.

Chellappa, S. L., Ly, J., Gaggioni, G., Papachilleos, S., Borsu, C., Brzozowski, A., Archer, S., Rosanova, M., Sarasso, S., Dijk, D.-J., Maquet, P., Massimini, M., Phillips, C., Moran, R., & Vandewalle, G. (2014). Dynamics of human cortical ensembles are set by circadian system and sleep homeostasis [Paper presentation]. European Sleep Research Society Symposium.

Ly, J., Gaggioni, G., Chellappa, S. L., Rosanova, M., Sarasso, S., Archer, S., Dijk, D.-J., Maquet, P., Massimini, M., & Vandewalle, G. (2014). Cortical excitability depends on time awake and circadian phase [Paper presentation]. Congrès de la Society for Research on Biological Rhythms (SRBR), Big Sky, United States.

Jaspar, M., Meyer, C., Muto, V., Shaffii-LeBourdiec, A., Chellappa, S. L., Vandewalle, G., Collette, F., Archer, S., Dijk, D.-J., & Maquet, P. (12 August 2013). Influence of circadian rhythm and PER3 genotype on executive discriminative ability under sleep deprivation during a constant routine [Paper presentation]. 17th EURON PhD Days.

Chellappa, S. L., & Cajochen, C. (2013). Ultradian and circadian modulation of dream recall: EEG correlates and age effects. International Journal of Psychophysiology. doi:10.1016/j.ijpsycho.2013.03.006
Peer Reviewed verified by ORBi

Gabel, V., Maire, M., Reichert, C. F., Chellappa, S. L., Schmidt, C., Hommes, V., Viola, A. U., & Cajochen, C. (2013). Effects of Artificial Dawn and Morning Blue Light on Daytime Cognitive Performance, Well-being, Cortisol and Melatonin Levels. Chronobiology International, 30 (8), 988-97. doi:10.3109/07420528.2013.793196
Peer Reviewed verified by ORBi

Chellappa, S. L., Ly, J., Meyer, C., Balteau, E., Degueldre, C., Luxen, A., Cooper, H., & Vandewalle, G. (2013). Melanopsin bistability impinges on higher order cognitive brain function. Sleep, 36 (Suppl. 1).
Peer Reviewed verified by ORBi

Ly, J., Dang-Vu, T., Chellappa, S. L., Schabus, M., Vandewalle, G., Phillips, C., & Maquet, P. (2013). Neural correlates of the transition from wakefulness to sleep assessed by simultaneous high density electroencephalography and functional magnetic resonance imaging. Sleep.
Peer Reviewed verified by ORBi

Chellappa, S. L., Steiner, R., Oelhafen, P., Götz, T., Krebs, J., & Cajochen, C. (2013). Acute exposure to evening blue-enriched light impacts on human sleep. Journal of Sleep Research. doi:10.1111/jsr.12050
Peer Reviewed verified by ORBi

Chellappa, S. L., Viola, A., & Mongrain, V. (2013). Circadian Rhythm Sleep Disorder: Genetic and Environmental Factors. In C. Kushida (Ed.), Encyclopaedia of Sleep. Elsevier Science. doi:10.1016/B978-0-12-378610-4.00263-1
Peer reviewed

Jaspar, M., Meyer, C., Muto, V., Shaffii-LeBourdiec, A., Chellappa, S. L., Vandewalle, G., Collette, F., Archer, S., Dijk, D. J., & MAQUET, P. (2013). Influence of circadian rhythm and PER3 genotype on executive discriminative ability under sleep deprivation during a constant routine. Sleep, 36.
Peer Reviewed verified by ORBi

Muto, V., Meyer, C., Jaspar, M., Shaffii-LeBourdiec, A., Chellappa, S. L., Vandewalle, G., Collette, F., Archer, S., Dijk, D. J., & MAQUET, P. (2013). Influence of sleep homeostasis and circadian rhythm on waking EEG oscillations in PER3 polymorphism under sleep deprivation. Sleep, 36.
Peer Reviewed verified by ORBi

Jaspar, M., Meyer, C., Muto, V., Shaffii, A., Chellappa, S. L., Vandewalle, G., Collette, F., Archer, S., Dijk, D.-J., & MAQUET, P. (September 2012). Influence of sleep homeostasis and circadian rhythm on executive discriminative ability during a constant routine [Poster presentation]. 21st Congress of the European Sleep Research Society, Paris, France.

Muto, V., Jaspar, M., Meyer, C., Shaffii, A., Kussé, C., Foret, A., Chellappa, S. L., Vandewalle, G., Collette, F., Archer, S., Dijk, D.-J., & Maquet, P. (2012). Influence of sleep homeostasis and circadian rhythm on waking EEG oscillations during a constant routine. Journal of Sleep Research.
Peer Reviewed verified by ORBi

Chellappa, S. L., Munch, M., Knoblauch, V., & Cajochen, C. (2012). Age effects on spectral electroencephalogram activity prior to dream recall. Journal of Sleep Research, 21 (3), 247-56. doi:10.1111/j.1365-2869.2011.00947.x
Peer Reviewed verified by ORBi

Viola, A. U., Chellappa, S. L., Archer, S. N., Pugin, F., Gotz, T., Dijk, D.-J., & Cajochen, C. (2012). Interindividual differences in circadian rhythmicity and sleep homeostasis in older people: effect of a PER3 polymorphism. Neurobiology of Aging, 33 (5), 1010.e17-27. doi:10.1016/j.neurobiolaging.2011.10.024
Peer Reviewed verified by ORBi

Chellappa, S. L., Steiner, R., Oelhafen, P., Götz, T., Krebs, J., & Cajochen, C. (2012). Acute exposure to blue-enriched light impacts on melatonin and sleep in humans. Journal of Sleep Research.
Peer Reviewed verified by ORBi

Chellappa, S. L., Viola, A. U., Schmidt, C., Bachmann, V., Gabel, V., Maire, M., Reichert, C. F., Valomon, A., Gotz, T., Landolt, H.-P., & Cajochen, C. (2012). Human melatonin and alerting response to blue-enriched light depend on a polymorphism in the clock gene PER3. Journal of Clinical Endocrinology and Metabolism, 97 (3), 433-7. doi:10.1210/jc.2011-2391
Peer Reviewed verified by ORBi

Viola, A. U., Tobaldini, E., Chellappa, S. L., Casali, K. R., Porta, A., & Montano, N. (2011). Short-term complexity of cardiac autonomic control during sleep: REM as a potential risk factor for cardiovascular system in aging. PLoS ONE, 6 (4), 19002. doi:10.1371/journal.pone.0019002
Peer Reviewed verified by ORBi

Chellappa, S. L., & Cajochen, C. (2011). Depression and sleepiness: A chronobiological approach. In M. Thorpy & M. Billiard (Eds.), Sleepiness Causes, Consequences and Treatment. Cambridge University Press. doi:10.1017/CBO9780511762697.027
Peer reviewed

Birchler-Pedross, A., Frey, S., Chellappa, S. L., Gotz, T., Brunner, P., Knoblauch, V., Wirz-Justice, A., & Cajochen, C. (2011). Higher frontal EEG synchronization in young women with major depression: a marker for increased homeostatic sleep pressure? Sleep, 34 (12), 1699-706. doi:10.5665/sleep.1440
Peer Reviewed verified by ORBi

Chellappa, S. L., Steiner, R., Blattner, P., Oelhafen, P., Gotz, T., & Cajochen, C. (2011). Non-visual effects of light on melatonin, alertness and cognitive performance: can blue-enriched light keep us alert? PLoS ONE, 6 (1), 16429. doi:10.1371/journal.pone.0016429
Peer Reviewed verified by ORBi

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, 119-33. doi:10.1016/B978-0-444-53817-8.00007-4
Peer Reviewed verified by ORBi

Chellappa, S. L., Frey, S., Knoblauch, V., & Cajochen, C. (2011). Cortical activation patterns herald successful dream recall after NREM and REM sleep. Biological Psychology, 87 (2), 251-6. doi:10.1016/j.biopsycho.2011.03.004
Peer Reviewed verified by ORBi

Cajochen, C., Chellappa, S. L., & Schmidt, C. (2010). What keeps us awake? The role of clocks and hourglasses, light, and melatonin. International Review of Neurobiology, 93, 57-90. doi:10.1016/S0074-7742(10)93003-1
Peer Reviewed verified by ORBi

Chellappa, S. L., & Cajochen, C. (2010). The Circadian Clock and the homeostatic hourglass - two timepieces controlling Sleep and wakefulness. In U. Albercht (Ed.), The circadian clock. Springer.
Peer reviewed

Chellappa, S. L., Schroder, C., & Cajochen, C. (2009). Chronobiology, excessive daytime sleepiness and depression: Is there a link? Sleep Medicine, 10 (5), 505-14. doi:10.1016/j.sleep.2008.05.010
Peer Reviewed verified by ORBi

Chellappa, S. L., Munch, M., Blatter, K., Knoblauch, V., & Cajochen, C. (2009). Does the circadian modulation of dream recall modify with age? Sleep, 32 (9), 1201-9. doi:10.1093/sleep/32.9.1201
Peer Reviewed verified by ORBi

Chellappa, S. L., & Araujo, J. F. (2007). Sleep disorders and suicidal ideation in patients with depressive disorder. Psychiatry Research, 153 (2), 131-6. doi:10.1016/j.psychres.2006.05.007
Peer Reviewed verified by ORBi

Chellappa, S. L., & Araujo, J. F. (2006). Excessive daytime sleepiness in patients with depressive disorder. Revista Brasileira de Psiquiatria, 28 (2), 126-9. doi:10.1590/S1516-44462006000200010
Peer Reviewed verified by ORBi

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