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Lim JYL, Boardman JM, Anderson C, Dickinson DL, Bennett D, Drummond SPA. Sleep restriction alters the integration of multiple information sources in probabilistic decision-making. J Sleep Res 2024; 33:e14161. [PMID: 38308529 DOI: 10.1111/jsr.14161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/04/2024]
Abstract
The detrimental effects of sleep loss on overall decision-making have been well described. Due to the complex nature of decisions, there remains a need for studies to identify specific mechanisms of decision-making vulnerable to sleep loss. Bayesian perspectives of decision-making posit judgement formation during decision-making occurs via a process of integrating knowledge gleaned from past experiences (priors) with new information from current observations (likelihoods). We investigated the effects of sleep loss on the ability to integrate multiple sources of information during decision-making by reporting results from two experiments: the first implementing both sleep restriction (SR) and total sleep deprivation (TSD) protocols, and the second implementing an SR protocol. In both experiments, participants were administered the Bayes Decisions Task on which optimal performance requires the integration of Bayesian prior and likelihood information. Participants in Experiment 1 showed reduced reliance on both information sources after SR, while no significant change was observed after TSD. Participants in Experiment 2 showed reduced reliance on likelihood after SR, especially during morning testing sessions. No accuracy-related impairments resulting from SR and TSD were observed in both experiments. Our findings show SR affects decision-making through altering the way individuals integrate available sources of information. Additionally, the ability to integrate information during SR may be influenced by time of day. Broadly, our findings carry implications for working professionals who are required to make high-stakes decisions on the job, yet consistently receive insufficient sleep due to work schedule demands.
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Affiliation(s)
- Jeryl Y L Lim
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Clayton, Victoria, Australia
| | - Johanna M Boardman
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Clayton, Victoria, Australia
| | - Clare Anderson
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Clayton, Victoria, Australia
| | - David L Dickinson
- Department of Economics and CERPA, Appalachian State University, Boone, North Carolina, USA
- Economics Science Institute, Chapman University, Orange, California, USA
- Insititute of Labor Economics, Bonn, Germany
| | - Daniel Bennett
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Clayton, Victoria, Australia
| | - Sean P A Drummond
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Clayton, Victoria, Australia
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Ruiz-Herrera N, Friedman M, St. Hilaire MA, Arrona-Palacios A, Czeisler CA, Duffy JF. Time of Day and Sleep Deprivation Effects on Risky Decision Making. Clocks Sleep 2024; 6:281-290. [PMID: 38920421 PMCID: PMC11202614 DOI: 10.3390/clockssleep6020020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/11/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024] Open
Abstract
Previous research has revealed that daily variations in human neurobehavioral functions are driven in part by the endogenous circadian system. The objective of this study was to explore whether there exists a circadian influence on performance regarding a risky decision-making task and to determine whether the performance changes with sleep deprivation (SD). Thirteen participants underwent a 39 h constant routine (CR) protocol, during which they remained awake in constant conditions and performed the BART (balloon analogue risk task) every two hours. The mean pumps (gains) (p < 0.001) and balloons popped (losses) (p = 0.003) exhibited variation during the CR. The reaction time (RT) also showed significant variation across the CR (p < 0.001), with slower mean RTs in the morning hours following SD. A greater risk propensity was observed around midday before SD and a lower risk propensity after 29.5 h of being awake. The sensitivity to punishment varied during the CR, but did not follow a predictable trend. Further research using real monetary incentives and neurophysiological measures is warranted to elucidate these findings.
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Affiliation(s)
- Noelia Ruiz-Herrera
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA; (N.R.-H.); (M.A.S.H.)
- Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Mia Friedman
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA; (N.R.-H.); (M.A.S.H.)
| | - Melissa A. St. Hilaire
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA; (N.R.-H.); (M.A.S.H.)
- Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA
- Department of Computer and Data Sciences, School of Engineering and Computational Sciences, Merrimack College, North Andover, MA 01845, USA
| | - Arturo Arrona-Palacios
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA; (N.R.-H.); (M.A.S.H.)
- Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Charles A. Czeisler
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA; (N.R.-H.); (M.A.S.H.)
- Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Jeanne F. Duffy
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA; (N.R.-H.); (M.A.S.H.)
- Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA
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van Dorp R, Rolleri E, Deboer T. Sleep and the sleep electroencephalogram in C57BL/6 and C3H/HeN mice. J Sleep Res 2024; 33:e14062. [PMID: 37803888 DOI: 10.1111/jsr.14062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/08/2023] [Accepted: 09/20/2023] [Indexed: 10/08/2023]
Abstract
Different mouse strains used in biomedical research show different phenotypes associated with their genotypes. Two mouse strains commonly used in biomedical sleep research are C57Bl/6 and C3H/He, the strains differ in numerous aspects, including their ability to secrete melatonin as well as the expression of several sleep-related genes. However, sleep regulation has only limitedly been compared between C3H/HeN and C57Bl/6 mice. We therefore compared sleep-wake behaviour and EEG-measured spectral brain activity for C57bl/6 and C3H/HeN mice during a 12:12 h light: dark baseline and during and after a 6 h sleep deprivation. The C3H mice spent more time in NREM sleep around the light-dark transition and more time in REM sleep during the dark phase compared with C57bl/6 mice. The C3H mice also showed more EEG activity in the 4.5-7.5 Hz range during all stages and a stronger 24 h modulation of EEG power density in almost all EEG frequencies during NREM sleep. After the sleep deprivation, C3H mice showed a stronger recovery response, which was expressed in both a larger increase in EEG slow wave activity (SWA) and more time spent in NREM sleep. We show large differences regarding sleep architecture and EEG activity between C3H and C57bl/6 mice. These differences include the amount of waking during the late dark phase, the 24 h amplitude in EEG power density, and the amount of REM sleep during the dark phase. We conclude that differences between mouse strains should be considered when selecting a model strain to improve the generalisability of studies investigating biomedical parameters related to sleep and circadian rhythms.
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Affiliation(s)
- Rick van Dorp
- Laboratory for Neurophysiology, Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Elisa Rolleri
- Laboratory for Neurophysiology, Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Tom Deboer
- Laboratory for Neurophysiology, Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
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Specht A, Kolosov G, Cederberg KLJ, Bueno F, Arrona-Palacios A, Pardilla-Delgado E, Ruiz-Herrera N, Zitting KM, Kramer A, Zeitzer JM, Czeisler CA, Duffy JF, Mignot E. Circadian protein expression patterns in healthy young adults. Sleep Health 2024; 10:S41-S51. [PMID: 38087675 PMCID: PMC11031319 DOI: 10.1016/j.sleh.2023.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 04/20/2024]
Abstract
OBJECTIVES To explore how the blood plasma proteome fluctuates across the 24-hour day and identify a subset of proteins that show endogenous circadian rhythmicity. METHODS Plasma samples from 17 healthy adults were collected hourly under controlled conditions designed to unmask endogenous circadian rhythmicity; in a subset of 8 participants, we also collected samples across a day on a typical sleep-wake schedule. A total of 6916 proteins were analyzed from each sample using the SomaScan aptamer-based multiplexed platform. We used differential rhythmicity analysis based on a cosinor model with mixed effects to identify a subset of proteins that showed circadian rhythmicity in their abundance. RESULTS One thousand and sixty-three (15%) proteins exhibited significant daily rhythmicity. Of those, 431 (6.2%) proteins displayed consistent endogenous circadian rhythms on both a sleep-wake schedule and under controlled conditions: it included both known and novel proteins. When models were fitted with two harmonics, an additional 259 (3.7%) proteins exhibited significant endogenous circadian rhythmicity, indicating that some rhythmic proteins cannot be solely captured by a simple sinusoidal model. Overall, we found that the largest number of proteins had their peak levels in the late afternoon/evening, with another smaller group peaking in the early morning. CONCLUSIONS This study reveals that hundreds of plasma proteins exhibit endogenous circadian rhythmicity in humans. Future analyses will likely reveal novel physiological pathways regulated by circadian clocks and pave the way for improved diagnosis and treatment for patients with circadian disorders and other pathologies. It will also advance efforts to include knowledge about time-of-day, thereby incorporating circadian medicine into personalized medicine.
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Affiliation(s)
- Adrien Specht
- Department of Psychiatry and Behavioral Sciences, Stanford University, Palo Alto, California, USA
| | - German Kolosov
- Department of Psychiatry and Behavioral Sciences, Stanford University, Palo Alto, California, USA
| | - Katie L J Cederberg
- Department of Psychiatry and Behavioral Sciences, Stanford University, Palo Alto, California, USA
| | - Flavia Bueno
- Department of Psychiatry and Behavioral Sciences, Stanford University, Palo Alto, California, USA
| | - Arturo Arrona-Palacios
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital and Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Enmanuelle Pardilla-Delgado
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital and Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Noelia Ruiz-Herrera
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital and Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Kirsi-Marja Zitting
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital and Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Achim Kramer
- Division of Chronobiology, Institute of Medical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Jamie M Zeitzer
- Department of Psychiatry and Behavioral Sciences, Stanford University, Palo Alto, California, USA
| | - Charles A Czeisler
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital and Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Jeanne F Duffy
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital and Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA.
| | - Emmanuel Mignot
- Department of Psychiatry and Behavioral Sciences, Stanford University, Palo Alto, California, USA.
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Snipes S, Meier E, Meissner SN, Landolt HP, Huber R. How and when EEG reflects changes in neuronal connectivity due to time awake. iScience 2023; 26:107138. [PMID: 37534173 PMCID: PMC10391938 DOI: 10.1016/j.isci.2023.107138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/13/2023] [Accepted: 06/12/2023] [Indexed: 08/04/2023] Open
Abstract
Being awake means forming new memories, primarily by strengthening neuronal synapses. The increase in synaptic strength results in increasing neuronal synchronicity, which should result in higher amplitude electroencephalography (EEG) oscillations. This is observed for slow waves during sleep but has not been found for wake oscillations. We hypothesized that this was due to a limitation of spectral power analysis, which does not distinguish between changes in amplitudes from changes in number of occurrences of oscillations. By using cycle-by-cycle analysis instead, we found that theta and alpha oscillation amplitudes increase as much as 30% following 24 h of extended wake. These increases were interrupted during the wake maintenance zone (WMZ), a window just before bedtime when it is difficult to fall asleep. We found that pupil diameter increased during this window, suggesting the ascending arousal system is responsible. In conclusion, wake oscillation amplitudes reflect increased synaptic strength, except during the WMZ.
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Affiliation(s)
- Sophia Snipes
- Child Development Center, University Children’s Hospital Zürich, University of Zürich, 8032 Zürich, Switzerland
- Neural Control of Movement Lab, Department of Health Sciences and Technology, ETH Zürich, 8092 Zürich, Switzerland
| | - Elias Meier
- Child Development Center, University Children’s Hospital Zürich, University of Zürich, 8032 Zürich, Switzerland
| | - Sarah Nadine Meissner
- Neural Control of Movement Lab, Department of Health Sciences and Technology, ETH Zürich, 8092 Zürich, Switzerland
| | - Hans-Peter Landolt
- Institute of Pharmacology and Toxicology, University of Zürich, Zürich, 8057 Zürich, Switzerland
- Sleep & Health Zürich, University of Zürich, Zürich, 8006 Zürich, Switzerland
| | - Reto Huber
- Child Development Center, University Children’s Hospital Zürich, University of Zürich, 8032 Zürich, Switzerland
- Sleep & Health Zürich, University of Zürich, Zürich, 8006 Zürich, Switzerland
- Department of Child and Adolescent Psychiatry and Psychotherapy, Psychiatric Hospital, University of Zürich, 8008 Zürich, Switzerland
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Vizeli P, Cuccurazzu B, Drummond SPA, Acheson DT, Risbrough VB. Effects of total sleep deprivation on sensorimotor gating in humans. Behav Brain Res 2023; 449:114487. [PMID: 37169130 DOI: 10.1016/j.bbr.2023.114487] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/08/2023] [Accepted: 05/08/2023] [Indexed: 05/13/2023]
Abstract
Sensorimotor gating is a measure of pre-attentional information processing and can be measured by prepulse inhibition (PPI) of the startle reflex. Sleep deprivation has been shown to disrupt PPI in animals and humans, and has been proposed as an early phase 2 model to probe antipsychotic efficacy in heathy humans. To further investigate the reliability and efficacy of sleep deprivation to produce PPI deficits we tested the effects of total sleep deprivation (TSD) on PPI in healthy controls in a highly controlled sleep laboratory environment. Participants spent 4 days and nights in a controlled laboratory environment with their sleep monitored with polysomnography. Participants were randomly assigned to either normal sleep on all 4 nights (N=17) or 36hours of TSD on the 3rd or 4th night (N=40). Participants were assessed for sleepiness using the Karolinska Sleepiness Scale (KSS) and underwent a daily PPI task (interstimlulus intervals 30-2000 ms) in the evening. Both within-subject effects (TSD vs. normal sleep in TSD group alone) and between-subject effects (TSD vs. no TSD group) of TSD on PPI were assessed. TSD increased subjective sleepiness measured with the KSS, but did not significantly alter overall startle, habituation or PPI. Sleep measures including duration, rapid eye movement and slow wave sleep duration were also not associated with PPI performance. The current results show that human sensorimotor gating may not be reliably sensitive to sleep deprivation. Further research is required for TSD to be considered a dependable model of PPI disruption for drug discovery in humans.
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Affiliation(s)
- Patrick Vizeli
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA.
| | - Bruna Cuccurazzu
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA; Center of Excellence for Stress and Mental Health, San Diego Veterans Affairs, San Diego, CA, USA
| | - Sean P A Drummond
- Turner Institute for Brain and Mental Health, Monash School of Psychological Sciences, Monash University, Clayton, VIC, Australia
| | - Dean T Acheson
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA; Center of Excellence for Stress and Mental Health, San Diego Veterans Affairs, San Diego, CA, USA
| | - Victoria B Risbrough
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA; Center of Excellence for Stress and Mental Health, San Diego Veterans Affairs, San Diego, CA, USA
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