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Marie-laure Bocca - One of the best experts on this subject based on the ideXlab platform.
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Specific EEG Sleep Pattern in the Prefrontal Cortex in Primary Insomnia
PLoS ONE, 2015Co-Authors: Joy Perrier, Patrice Clochon, Françoise Bertran, Colette Couque, Jan Bulla, Pierre Denise, Marie-laure BoccaAbstract:Objective To assess the specific prefrontal activity in comparison to those in the other main cortical areas in primary insomnia patients and in good Sleepers. Methods Fourteen primary insomnia patients and 11 good Sleepers were included in the analysis. Participants completed one night of polysomnography in the Sleep lab. Power spectra were calculated during the NREM (Non-rapid eyes movements) and the REM (Rapid eyes movements) Sleep periods at prefrontal, occipital, temporal and central electrode positions. Results During the NREM Sleep, the power spectra did not differ between groups in the prefrontal cortex; while primary insomnia patients exhibited a higher beta power spectrum and a lower delta power spectrum compared to good Sleepers in other areas. During the REM Sleep, the beta1 power spectrum was lower in the prefrontal cortex in primary insomnia patients compared to good Sleepers; while no significant difference between groups was obtained for the other areas. Conclusions The present study shows a specific prefrontal Sleep Pattern during the whole Sleep period. In addition, we suggest that primary insomnia patients displayed a dysfunction in the reacti-vation of the limbic system during the REM Sleep and we give additional arguments in favor of a Sleep-protection mechanism displayed by primary insomnia patients.
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specific eeg Sleep Pattern in the prefrontal cortex in primary insomnia
PLOS ONE, 2015Co-Authors: Joy Perrier, Patrice Clochon, Françoise Bertran, Colette Couque, Jan Bulla, Pierre Denise, Marie-laure BoccaAbstract:Objective To assess the specific prefrontal activity in comparison to those in the other main cortical areas in primary insomnia patients and in good Sleepers.
Sergio Tufik - One of the best experts on this subject based on the ideXlab platform.
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Effects of acute physical exercise in the light phase of Sleep in rats with temporal lobe epilepsy.
Epilepsy Research, 2017Co-Authors: Cristiano De Lima, Monica L. Andersen, Daniel Ninello Polesel, Tathiana A. Alvarenga, Gabriela Matos, Ricardo Mario Arida, Rodrigo Luiz Vancini, Sergio TufikAbstract:Abstract Objective Our aim was to investigate the influence of an acute exercise session on Sleep Pattern in rats with temporal lobe epilepsy (TLE). Methods Twenty male Wistar rats were randomly assigned to 4 groups: control (C); acute exercise (EX); epilepsy (E) and epilepsy acute exercise (EEX). Two Sleep electrocorticography recordings were performed during the light phase [baseline and day 2 (after the acute physical exercise session)]. After baseline recording, the exercise groups (EX and EEX) were submitted to an exercise session on a motor-driven treadmill at 12 m/min for 30 min. Twelve hours later, the rats were submitted to the second Sleep recording. Results At baseline, the E group showed a higher wakefulness and a lower Total Sleep time, Slow Wave Sleep and REM Sleep compared with the C group. After acute exercise, there was an increase in Total Sleep time and Slow Wave Sleep and a decrease of wakefulness in EEX (+11.10%, +20.29% and −11.25%, respectively) and EX (+5.20%, +11.60% and −8.12%, respectively) groups. Conclusion These findings suggest that acute physical exercise positively impacts the Sleep Pattern of rats with TLE, inducing a more consolidated Sleep.
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Sleep Pattern is associated with adipokine levels and nutritional markers in resident physicians
Chronobiology International, 2014Co-Authors: Maria Carliana Mota, Sergio Tufik, Marco Tulio De Mello, Jim Waterhouse, Daurea Abadia Desouza, Luana Thomazetto Rossato, Catarina Mendes Silva, Maria Bernadete Jeha Araujo, Cibele Aparecida CrispimAbstract:Shift work and long hours of work are common in medical training and have been associated with a higher propensity for developing nutritional problems and obesity. Changes in leptin and ghrelin concentrations – two hormones that contribute importantly to the central regulation of food intake – are poorly described in this population. The aim of this study was to identify possible negative associations between Sleep Patterns, nutritional status and serum levels of adipokines. The study included 72 resident physicians (52 women and 20 men) who underwent the following assessments: nutritional assessment (3-day dietary recall evaluated by the Adapted Healthy Eating Index), anthropometric variables, fasting metabolism, physical activity level, Sleep quality and Sleepiness. Resident physicians with poor Sleep quality reported greater weight gain after the beginning of residency (5.1 and 3.0 kg, respectively; p = 0.01) and higher frequency of abnormal waist circumference (44.2 and 17.6%, respectively; p = 0.04) ...
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Temporal Sleep Patterns in adults using actigraph.
Sleep Science, 2014Co-Authors: Lia Matuzaki, Sergio Tufik, Rogerio Santos-silva, Elaine Cristina Marqueze, Claudia Roberta De Castro Moreno, Lia BittencourtAbstract:The aim of the present study was to characterize the temporal Patterns of Sleep and wakefulness in a sample of the adult subjects from Sao Paulo city. All subjects filled the Morningness/Eveningness Questionnaire (MEQ) and wore an actigraph for at least three consecutive days. A total of 359 subjects were considered for the analyses. The mean age was 43±14 years, the mean body mass index was 26.7±5.7 kg/m2, and 60% were female. The mean MEQ score was 58.0±10.7. The Sleep Pattern evaluated by the actigraphic analyses showed that 92% had a monophasic Sleep Pattern, 7% biphasic, and 1% polyphasic Sleep Pattern. Cluster analysis, based on time to Sleep onset, Sleep efficiency, Sleep latency, and total Sleep time, was able to identify three different groups denominated: morning type, evening type, and undefined type. Morning type subjects were more frequent, older, and had higher MEQ scores than evening type subjects. Our results showed that the actigraph objectively assessed the Sleep-wake cycle and was able to discriminate between morning and evening type individuals. These findings suggest that the actigraph could be a valuable tool for assessing temporal Sleep Patterns, including the circadian preferences.
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physical exercise performed before bedtime improves the Sleep Pattern of healthy young good Sleepers
Psychophysiology, 2012Co-Authors: Noler Heyden Flausino, Sergio Tufik, Juliana Martuscelli Da Silva Prado, Sandra Souza De Queiroz, Marco Tulio De MelloAbstract:d Bolsista—Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brasil Abstract To investigate the influence of different intensities and durations of exercise before bedtime on the Sleep Pattern and core body temperature of individuals considered good Sleepers, we selected 17 healthy males and all underwent 5 noncon- secutive days of study. Measurements of polysomnographic parameters and core body temperature were taken at baseline and after each experimental protocol, performed at night. We found increased Sleep efficiency (p = .016) among all protocols compared with baseline data and increase in REM Sleep latency (p = .047) between two experiments; there was decrease in the percentage of stage 1 Sleep (p = .046) and wake after Sleep onset (p = .003). Core body temperature did not change significantly during the nights following exercise. Exercise performed before Sleep does not impair Sleep quality; rather, its practice improves Sleep in good Sleepers who are nonathletes, and may be considered to improve Sleep Pattern.
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relationship between food intake and Sleep Pattern in healthy individuals
Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2011Co-Authors: Cibele Aparecida Crispim, Sergio Tufik, Iona Zalcman Zimberg, Bruno Gomes Dos Reis, Rafael Marques Diniz, Marco Tulio De MelloAbstract:Study Objectives: The purpose of this study was to analyze the relationship between food intake and Sleep Patterns in healthy individuals. Methods: Fifty-two healthy volunteers (27 women and 25 men) were recruited to participate in the study. Volunteers underwent Sleep evaluation through nocturnal polysomnography and completed a 3-day food diary to evaluate food intake. Results: No differences in Sleep Patterns were observed in either gender, except in the percentage of stage 1 Sleep, which was greater in men. Different correlations were observed between Sleep and dietary variables according to gender. The correlation between dietary and Sleep variables in men indicated a negative relationship between nocturnal fat intake and the Sleep latency, including REM Sleep. The percentage of nocturnal fat intake correlated with Sleep effiSleep latency, REM latency, stage 2 Sleep, REM Sleep, and wake after Sleep onset (WASO) in women. The percentage of nocturnal caloric intake correlated with Sleep latency and effi ciency in women. Conclusions: We conclude that food intake during the nocturnal period is correlated with negative effects on the Sleep quality of healthy individuals. Indeed, food intake near the Sleeping period (dinner and late night snack) was negatively associated with Sleep quality variables. More studies are necessary to elucidate the real effect of food intake on Sleep.
Joy Perrier - One of the best experts on this subject based on the ideXlab platform.
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Specific EEG Sleep Pattern in the Prefrontal Cortex in Primary Insomnia
PLoS ONE, 2015Co-Authors: Joy Perrier, Patrice Clochon, Françoise Bertran, Colette Couque, Jan Bulla, Pierre Denise, Marie-laure BoccaAbstract:Objective To assess the specific prefrontal activity in comparison to those in the other main cortical areas in primary insomnia patients and in good Sleepers. Methods Fourteen primary insomnia patients and 11 good Sleepers were included in the analysis. Participants completed one night of polysomnography in the Sleep lab. Power spectra were calculated during the NREM (Non-rapid eyes movements) and the REM (Rapid eyes movements) Sleep periods at prefrontal, occipital, temporal and central electrode positions. Results During the NREM Sleep, the power spectra did not differ between groups in the prefrontal cortex; while primary insomnia patients exhibited a higher beta power spectrum and a lower delta power spectrum compared to good Sleepers in other areas. During the REM Sleep, the beta1 power spectrum was lower in the prefrontal cortex in primary insomnia patients compared to good Sleepers; while no significant difference between groups was obtained for the other areas. Conclusions The present study shows a specific prefrontal Sleep Pattern during the whole Sleep period. In addition, we suggest that primary insomnia patients displayed a dysfunction in the reacti-vation of the limbic system during the REM Sleep and we give additional arguments in favor of a Sleep-protection mechanism displayed by primary insomnia patients.
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specific eeg Sleep Pattern in the prefrontal cortex in primary insomnia
PLOS ONE, 2015Co-Authors: Joy Perrier, Patrice Clochon, Françoise Bertran, Colette Couque, Jan Bulla, Pierre Denise, Marie-laure BoccaAbstract:Objective To assess the specific prefrontal activity in comparison to those in the other main cortical areas in primary insomnia patients and in good Sleepers.
Colette Couque - One of the best experts on this subject based on the ideXlab platform.
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Specific EEG Sleep Pattern in the Prefrontal Cortex in Primary Insomnia
PLoS ONE, 2015Co-Authors: Joy Perrier, Patrice Clochon, Françoise Bertran, Colette Couque, Jan Bulla, Pierre Denise, Marie-laure BoccaAbstract:Objective To assess the specific prefrontal activity in comparison to those in the other main cortical areas in primary insomnia patients and in good Sleepers. Methods Fourteen primary insomnia patients and 11 good Sleepers were included in the analysis. Participants completed one night of polysomnography in the Sleep lab. Power spectra were calculated during the NREM (Non-rapid eyes movements) and the REM (Rapid eyes movements) Sleep periods at prefrontal, occipital, temporal and central electrode positions. Results During the NREM Sleep, the power spectra did not differ between groups in the prefrontal cortex; while primary insomnia patients exhibited a higher beta power spectrum and a lower delta power spectrum compared to good Sleepers in other areas. During the REM Sleep, the beta1 power spectrum was lower in the prefrontal cortex in primary insomnia patients compared to good Sleepers; while no significant difference between groups was obtained for the other areas. Conclusions The present study shows a specific prefrontal Sleep Pattern during the whole Sleep period. In addition, we suggest that primary insomnia patients displayed a dysfunction in the reacti-vation of the limbic system during the REM Sleep and we give additional arguments in favor of a Sleep-protection mechanism displayed by primary insomnia patients.
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specific eeg Sleep Pattern in the prefrontal cortex in primary insomnia
PLOS ONE, 2015Co-Authors: Joy Perrier, Patrice Clochon, Françoise Bertran, Colette Couque, Jan Bulla, Pierre Denise, Marie-laure BoccaAbstract:Objective To assess the specific prefrontal activity in comparison to those in the other main cortical areas in primary insomnia patients and in good Sleepers.
Patrice Clochon - One of the best experts on this subject based on the ideXlab platform.
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Specific EEG Sleep Pattern in the Prefrontal Cortex in Primary Insomnia
PLoS ONE, 2015Co-Authors: Joy Perrier, Patrice Clochon, Françoise Bertran, Colette Couque, Jan Bulla, Pierre Denise, Marie-laure BoccaAbstract:Objective To assess the specific prefrontal activity in comparison to those in the other main cortical areas in primary insomnia patients and in good Sleepers. Methods Fourteen primary insomnia patients and 11 good Sleepers were included in the analysis. Participants completed one night of polysomnography in the Sleep lab. Power spectra were calculated during the NREM (Non-rapid eyes movements) and the REM (Rapid eyes movements) Sleep periods at prefrontal, occipital, temporal and central electrode positions. Results During the NREM Sleep, the power spectra did not differ between groups in the prefrontal cortex; while primary insomnia patients exhibited a higher beta power spectrum and a lower delta power spectrum compared to good Sleepers in other areas. During the REM Sleep, the beta1 power spectrum was lower in the prefrontal cortex in primary insomnia patients compared to good Sleepers; while no significant difference between groups was obtained for the other areas. Conclusions The present study shows a specific prefrontal Sleep Pattern during the whole Sleep period. In addition, we suggest that primary insomnia patients displayed a dysfunction in the reacti-vation of the limbic system during the REM Sleep and we give additional arguments in favor of a Sleep-protection mechanism displayed by primary insomnia patients.
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specific eeg Sleep Pattern in the prefrontal cortex in primary insomnia
PLOS ONE, 2015Co-Authors: Joy Perrier, Patrice Clochon, Françoise Bertran, Colette Couque, Jan Bulla, Pierre Denise, Marie-laure BoccaAbstract:Objective To assess the specific prefrontal activity in comparison to those in the other main cortical areas in primary insomnia patients and in good Sleepers.