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469 results on '"Gruber, Reut"'

5. National strategy on the integration of sleep and circadian rhythms into public health research and policies: Report from the Canadian Sleep and Circadian Network

Author

Chaput, Jean-Philippe, Gariépy, Geneviève, Pendharkar, Sachin R., Ayas, Najib T., Samuels, Charles, Vallières, Annie, Davidson, Judith R., Morin, Charles M., Simonelli, Guido, Bourguinat, Catherine, Gruber, Reut, Petit, Dominique, Narang, Indra, Viau, Valérie, and Carrier, Julie

Published
2022
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12. Sleep and insulin sensitivity in adolescents at risk of type 2 diabetes: the Sleep Manipulation in Adolescents at Risk of Type 2 Diabetes (SMART2D)randomized crossover study

Author

Dutil, Caroline, primary, Podinic, Irina, additional, Featherstone, Ryan B, additional, Eaton, Amelia, additional, Sadler, Christin M, additional, Goldfield, Gary S, additional, Hadjiyannakis, Stasia, additional, Gruber, Reut, additional, Tremblay, Mark S, additional, Prud’homme, Denis, additional, and Chaput, Jean-Philippe, additional

Published
2023
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30. Sleep Disturbances in Adolescents with Attention-Deficit/Hyperactivity Disorder

Author

Gruber,Reut, Salamon,Liron, Tauman,Riva, Al-Yagon,Michal, Gruber,Reut, Salamon,Liron, Tauman,Riva, and Al-Yagon,Michal

Abstract

Reut Gruber,1,2 Liron Salamon,3 Riva Tauman,4 Michal Al-Yagon3 1Department of Psychiatry, McGill University, Montreal, QC, Canada; 2Attention, Behaviour and Sleep Lab, Douglas Mental Health University Institute, Montreal, QC, Canada; 3Department of School Counseling and Special Education, Tel-Aviv University, Tel-Aviv, Israel; 4Sleep Disorders Center, Tel Aviv Souraski Medical Center, Tel Aviv, IsraelCorrespondence: Reut Gruber, Department of Psychiatry, McGill University, Montreal, QC, Canada, Email Reut.Gruber@Douglas.Mcgill.CaIntroduction: Delayed sleep phase syndrome (DSPS) and insomnia disorders are prevalent in adolescents and are comorbid with attention-deficit/hyperactivity disorder (ADHD), but only limited information is available regarding the prevalence of DSPS and insomnia in adolescents with ADHD. Moreover, previous studies comparing objective sleep parameters averaged the findings across all participants of each group (ADHD, control) regardless of each individual’s level of reported sleep disturbance. This might have resulted in inconsistency between information obtained by objective and subjective sleep measures in adolescents with ADHD. The objectives of the present study were 1) to compare the prevalence of risk for DSPS and insomnia in adolescents with ADHD and control adolescents in our samples; 2) to compare objectively measured sleep characteristics of adolescents with ADHD and controls while taking into consideration their levels of risk for DSPS or their level of insomnia; and 3) to compare the ADHD symptom levels of adolescents with moderate/high and low risk for DSPS or insomnia.Methods: Seventy-three adolescents (37 ADHD, 36 controls) aged 12– 15 years participated in a cross-sectional study. Actigraphy was used to characterize objective sleep parameters and parents’ or adolescents’ reports were used to characterize subjective sleep parameters.Results: Of the participants in the ADHD and control groups, 33.33% and 27%, respectively

Published
2023

38. Association between Fatigue and Autistic Symptoms in Children with Cri du Chat Syndrome

Author

Claro, Anthony, Cornish, Kim, and Gruber, Reut

Abstract

In the current study, the authors examined whether the fatigue level of children diagnosed with cri du chat syndrome was associated with the expression of autistic symptoms. Sixty-nine children with cri du chat syndrome were compared with 47 children with moderate to severe intellectual disabilities who did not differ on intellectual severity. Participants were assessed using the Infant Sleep Questionnaire (J. M. B. Morrell, 1999) for fatigue-level rating and the Childhood Autism Rating Scale (E. Schopler, R. J. Reichler, & B. R. Renner, 1988) for autism-level rating. In support of the authors' hypothesis, results indicated that children who exhibited high levels of fatigue were more likely to express high levels of autistic symptoms. Contrary to the authors' hypothesis, children in the comparison group who exhibited high levels of fatigue conferred the greatest vulnerability to the expression of autistic symptoms.

Published
2011
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46. Sleep and COMT Polymorphism in ADHD Children: Preliminary Actigraphic Data

Author

Gruber, Reut, Grizenko, Natalie, Schwartz, George, Amor, Leila Ben, Gauthier, Julie, de Guzman, Rosherrie, and Joober, Ridha

Abstract

Objective: To examine whether COMT (catechol-O-methyltransferase) polymorphism modulates aspects of sleep in children diagnosed with attention-deficit/hyperactivity disorder (ADHD). Method: Nightly sleep actigraphic recordings during a double-blind, placebo-controlled, crossover clinical study (1 week of 0.5 mg/kg MPH; 1 week of placebo) were obtained for 34 children, 7.4 to 12 years old, diagnosed with ADHD ("DSM-IV"). Diagnosis was generated by the Diagnostic Interview Schedule for Children and was confirmed by multidisciplinary consensus. Results: Children who were Val allele carriers had poorer sleep continuity compared with children with the Met-Met genotype while receiving a placebo and while receiving methylphenidate. Conclusions: The findings of the present study support the hypothesis that sleep disturbances in children with ADHD are related to the underlying pathophysiology of the disorder. (Contains 3 tables.)

Published
2006
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47. Children's Gender-Related Inferences and Judgments: A Cross-Cultural Study.

Author

Lobel, Thalma E., Gruber, Reut, Govrin, Nurit, and Mashraki-Pedhatzur, Sharon

Abstract

Compared gender-related inferences and judgments of third and fifth graders from Taiwan (a traditional collectivistic culture), and Israel (a less traditional modern culture). Found that Taiwanese children distinguished more than did Israeli children between male targets in stories behaving stereotypically and counterstereotypically. Interpreted findings within framework of differences between the two cultures. (Author/KB)

Published
2001

48. Gender Schema and Social Judgements: A Developmental Study of Children from Hong Kong.

Author

Lobel, Thalma E., Bar-David, Eva, Gruber, Reut, Lau, Sing, and Bar-Tal, Yoram

Abstract

Examined the inferences and judgements of gender schematic and aschematic elementary school students in Hong Kong. After being categorized according to their reaction times to gender stereotypic and counterstereotypic items, students made inferences and judgements about four male and female targets behaving gender stereotypically or counterstereotypically. Age and gender schematicity related to children's inferences. (SM)

Published
2000

49. Sleep Patterns and Sleep Disruptions in School-Age Children.

Author

Sadeh, Avi, Raviv, Amiram, and Gruber, Reut

Abstract

Assessed sleep patterns, sleep disruptions, and sleepiness of second-, fourth-, and sixth-graders. Found that older children had more delayed sleep onset times and increased reported daytime sleepiness than younger; girls spent more time in sleep than boys and had increased percentage of motionless sleep; and 18 percent of children had fragmented sleep. Identified parental correlates of child's sleep-wake measures. (Author/KB)

Published
2000

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