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N. Kalak · SciRah

Researcher profile · Semantic Scholar

N. Kalak

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N. Kalak — researcher profile on SciRah

h-index: 26
Works: 53
Citations: 2,664

Most-cited papers

Facing depression with botulinum toxin: a randomized controlled trial.
M. Wollmer, C. de Boer, N. Kalak, J. Beck +15 more
2012Journal of Psychiatric Research260 citations Open access
Semantic Scholar
Daily morning running for 3 weeks improved sleep and psychological functioning in healthy adolescents compared with controls.
N. Kalak, M. Gerber, R. Kirov, T. Mikoteit +4 more
2012Journal of Adolescent Health219 citations
Semantic Scholar
Validation of the German version of the insomnia severity index in adolescents, young adults and adult workers: results from three cross-sectional studies
M. Gerber, C. Lang, S. Lemola, F. Colledge +4 more
2016BMC Psychiatry183 citations Open access
Semantic Scholar
The relationship between physical activity and sleep from mid adolescence to early adulthood. A systematic review of methodological approaches and meta-analysis.
C. Lang, N. Kalak, S. Brand, E. Holsboer-trachsler +2 more
2016Sleep Medicine Reviews180 citations
Semantic Scholar
Are adolescents with high mental toughness levels more resilient against stress?
M. Gerber, N. Kalak, S. Lemola, P. Clough +5 more
2013Stress and Health179 citations Open access
Semantic Scholar
Adolescents' exercise and physical activity are associated with mental toughness
M. Gerber, N. Kalak, S. Lemola, P. Clough +4 more
2012161 citations
Semantic Scholar
Adolescents with greater mental toughness show higher sleep efficiency, more deep sleep and fewer awakenings after sleep onset.
S. Brand, M. Gerber, N. Kalak, R. Kirov +4 more
2014Journal of Adolescent Health109 citations Open access
Semantic Scholar
During early to mid adolescence, moderate to vigorous physical activity is associated with restoring sleep, psychological functioning, mental toughness and male gender
S. Brand, N. Kalak, M. Gerber, P. Clough +4 more
2017Jurnal sport science94 citations
Semantic Scholar
The relation of objective sleep patterns, depressive symptoms, and sleep disturbances in adolescent children and their parents: a sleep-EEG study with 47 families.
N. Kalak, M. Gerber, R. Kirov, T. Mikoteit +3 more
2012Journal of Psychiatric Research87 citations
Semantic Scholar
Poor Sleep Is Related to Lower Emotional Competence Among Adolescents
S. Brand, R. Kirov, N. Kalak, M. Gerber +4 more
2016Behavioural Sleep Medicine84 citations
Semantic Scholar
Examining Dark Triad traits in relation to mental toughness and physical activity in young adults
S. Sabouri, M. Gerber, D. Sadeghi Bahmani, S. Lemola +5 more
2016Neuropsychiatric Disease and Treatment77 citations Open access
Semantic Scholar
Acute Bouts of Exercising Improved Mood, Rumination and Social Interaction in Inpatients With Mental Disorders
S. Brand, F. Colledge, Sebastian Ludyga, Raphael Emmenegger +5 more
2018Frontiers in Psychology73 citations Open access
Semantic Scholar
Sleep duration and subjective psychological well-being in adolescence: a longitudinal study in Switzerland and Norway
N. Kalak, S. Lemola, S. Brand, E. Holsboer-trachsler +1 more
2014Neuropsychiatric Disease and Treatment69 citations Open access
Semantic Scholar
Examining Dark Triad traits in relation to sleep disturbances, anxiety sensitivity and intolerance of uncertainty in young adults.
S. Sabouri, M. Gerber, S. Lemola, Stephen P. Becker +6 more
2016Comprehensive Psychiatry68 citations
Semantic Scholar
Perfectionism related to self-reported insomnia severity, but not when controlled for stress and emotion regulation
S. Brand, R. Kirov, N. Kalak, M. Gerber +6 more
2015Neuropsychiatric Disease and Treatment67 citations Open access
Semantic Scholar
High self-perceived exercise exertion before bedtime is associated with greater objectively assessed sleep efficiency.
S. Brand, N. Kalak, M. Gerber, R. Kirov +2 more
2014Sleep Medicine67 citations
Semantic Scholar
During early and mid-adolescence, greater mental toughness is related to increased sleep quality and quality of life
S. Brand, N. Kalak, M. Gerber, P. Clough +3 more
2016Journal of Health Psychology63 citations Open access
Semantic Scholar
Concerns regarding hair cortisol as a biomarker of chronic stress in exercise and sport science.
M. Gerber, S. Brand, M. Lindwall, C. Elliot +4 more
2012Journal of Sports Science and Medicine62 citations
Semantic Scholar
Both Hair Cortisol Levels and Perceived Stress Predict Increased Symptoms of Depression: An Exploratory Study in Young Adults
M. Gerber, N. Kalak, C. Elliot, E. Holsboer-trachsler +2 more
2013Neuropsychobiology59 citations Open access
Semantic Scholar
“Sleep Well, Our Tough Heroes!”—In Adolescence, Greater Mental Toughness is Related to Better Sleep Schedules
S. Brand, M. Gerber, N. Kalak, R. Kirov +4 more
2014Behavioural Sleep Medicine55 citations Open access
Semantic Scholar
Objectively assessed physical activity is associated with increased hair cortisol content in young adults
M. Gerber, I. Jonsdottir, N. Kalak, C. Elliot +3 more
2013Stress50 citations Open access
Semantic Scholar
Dream recall and its relationship to sleep, perceived stress, and creativity among adolescents.
S. Brand, J. Beck, N. Kalak, M. Gerber +4 more
2011Journal of Adolescent Health50 citations
Semantic Scholar
Agitation Predicts Response of Depression to Botulinum Toxin Treatment in a Randomized Controlled Trial
M. Wollmer, N. Kalak, Stefanie Jung, C. de Boer +5 more
2014Frontiers in Psychiatry37 citations Open access
Semantic Scholar
Mental toughness, sleep disturbances, and physical activity in patients with multiple sclerosis compared to healthy adolescents and young adults
D. Sadeghi Bahmani, M. Gerber, N. Kalak, S. Lemola +6 more
2016Neuropsychiatric Disease and Treatment34 citations Open access
Semantic Scholar
The current state of physical activity and exercise programs in German-speaking, Swiss psychiatric hospitals: results from a brief online survey
S. Brand, F. Colledge, Nadja Beeler, U. Pühse +5 more
2016Neuropsychiatric Disease and Treatment29 citations Open access
Semantic Scholar
Aerobic exercise training in children and adolescents with inflammatory bowel disease: Influence on psychological functioning, sleep and physical performance – An exploratory trial
Laura Mählmann, M. Gerber, R. Furlano, C. Légeret +3 more
201726 citations
Semantic Scholar
Association between subjective actual sleep duration, subjective sleep need, age, body mass index, and gender in a large sample of young adults
S. Brand, N. Kalak, J. Beck, M. Wollmer +1 more
2015Neuropsychiatric Disease and Treatment26 citations Open access
Semantic Scholar
Favorable impact of long-term exercise on disease symptoms in pediatric patients with inflammatory bowel disease
C. Légeret, Laura Mählmann, M. Gerber, N. Kalak +4 more
2019BMC Pediatrics25 citations Open access
Semantic Scholar
The effectiveness of cognitive behavioral therapy with respect to psychological symptoms and recovering autobiographical memory in patients suffering from post-traumatic stress disorder
Fatemeh Akbarian, H. Bajoghli, M. Haghighi, N. Kalak +2 more
2015Neuropsychiatric Disease and Treatment25 citations Open access
Semantic Scholar
Psychological wellbeing and physical activity in children and adolescents with inflammatory bowel disease compared to healthy controls
Laura Mählmann, M. Gerber, R. Furlano, C. Légeret +3 more
2017BMC Gastroenterology24 citations Open access
Semantic Scholar
“Tell me, how bright your hypomania is, and I tell you, if you are happily in love!”—Among young adults in love, bright side hypomania is related to reduced depression and anxiety, and better sleep quality
S. Brand, Stephanie S. Foell, H. Bajoghli, Z. Keshavarzi +5 more
2015International journal of psychiatry in clinical practice22 citations
Semantic Scholar
Impaired objective and subjective sleep in children and adolescents with inflammatory bowel disease compared to healthy controls.
Laura Mählmann, M. Gerber, R. Furlano, C. Légeret +3 more
2017Sleep Medicine18 citations
Semantic Scholar
Perceived parenting styles differ between genders but not between elite athletes and controls
S. Brand, M. Gerber, J. Beck, N. Kalak +3 more
2011Adolescent Health, Medicine and Therapeutics18 citations Open access
Semantic Scholar
Workplace-Related Interpersonal Group Psychotherapy to Improve Life at Work in Individuals With Major Depressive Disorders: A Randomized Interventional Pilot Study
D. Niedermoser, N. Kalak, Anna Kiyhankhadiv, S. Brand +3 more
2020Frontiers in Psychiatry17 citations Open access
Semantic Scholar
Compared to controls, patients with ruptured aneurysm and surgical intervention show increase in symptoms of depression and lower cognitive performance, but their objective sleep is not affected
S. Brand, S. Zimmerer, N. Kalak, Sandra Von Planta +4 more
2015World Journal of Biological Psychiatry12 citations
Semantic Scholar
Cortisol Impacted on Explicit Learning Encoding, but Not on Storage and Retrieval, and Was Not Associated With Sleep Patterns—Results From the Trier Social Stress Test for Children (TSST-C) Among 9-Years Old Children
S. Brand, T. Mikoteit, N. Kalak, D. Sadeghi Bahmani +7 more
2018Frontiers in Psychology10 citations Open access
Semantic Scholar
Cortisol levels and sleep patterns in infants with orofacial clefts undergoing surgery
A. Mueller, N. Kalak, K. Schwenzer-Zimmerer, E. Holsboer-trachsler +1 more
2014Neuropsychiatric Disease and Treatment8 citations Open access
Semantic Scholar
[Sleep and Psychological Functioning of Children and Adolescents - a Narrative Review].
S. Brand, S. Lemola, T. Mikoteit, E. Holsboer-Trachsler +5 more
2019Praxis der Kinderpsychologie und Kinderpsychiatrie6 citations
Semantic Scholar
Adolescents with greater mental toughness show higher sleep efficiency, more deep sleep and fewer awakenings after sleep onset
S. Brand, M. Gerber, N. Kalak, R. Kirov +3 more
20136 citations Open access
Semantic Scholar
Effects of earlier bedtimes on sleep duration, sleep complaints and psychological functioning in adolescents
N. Kalak, M. Gerber, D. S. Bahmani, R. Kirov +3 more
2019Somnologie4 citations
Semantic Scholar
The Current State of Physical Activity and Exercise Programs in German-Speaking, Swiss Psychiatric Hospitals: Results from a Brief Online Survey [Corrigendum]
S. Brand, F. Colledge, Nadja Beeler, U. Pühse +5 more
2020Neuropsychiatric Disease and Treatment1 citations Open access
Semantic Scholar
Sleep disturbances, mental toughness, and physical activity in patients with multiple sclerosis (MS) compared to healthy adolescents and young adults
D. Sadeghi Bahmani, M. Gerber, N. Kalak, S. Lemola +4 more
2017European psychiatry1 citations Open access
Semantic Scholar
The role of sleep in the psychological functioning of adolescents
N. Kalak
20161 citations
Semantic Scholar
sleep duration and subjective psychological well-being in adolescence: a longitudinal study in switzerland and Norway
N. Kalak, S. Lemola, S. Brand, E. Holsboer-trachsler +1 more
20141 citations
Semantic Scholar
During early to mid adolescence, greater mental toughness is related to better sleep and vigorous physical activity
S. Brand, N. Kalak, M. Gerber, U. Pühse +1 more
20131 citations
Semantic Scholar
O-29 - Botulinum Neurotoxin for Treatment of Depression
T. Krüger, C. de Boer, N. Kalak, J. Beck +15 more
2012European psychiatry1 citations
Semantic Scholar
How a Depressive Medical Doctor Profited in the Long-Term from a New and Short Psychological Group-Treatment against Major Depressive Disorder
D. Niedermoser, N. Kalak, M. Meyer, N. Schweinfurth +2 more
2021International Journal of Environmental Research and Public Health0 citations Open access
Semantic Scholar
Aerobic Exercise Training in Children and Adolescents with Inflammatory Bowel Disease: Influence on psychological Functioning, Sleep and Physical Performance
L. Maehlmann, M. Gerber, R. Furlano, C. Légeret +4 more
2017European psychiatry0 citations
Semantic Scholar
’ s response to reviews Title : Validation of the German Version of the Insomnia Severity Index in Adolescents , Young Adults and Adult Workers : Results from Three Cross-Sectional Studies
M. Gerber, C. Lang, S. Lemola, F. Colledge +4 more
20160 citations
Semantic Scholar
Mental toughness, sleep disturbances, and physical activity in patients with multiple sclerosis (MS) compared to healthy adolescents and young adults - a pilot study
D. S. Bahmani, M. Gerber, N. Kalak, S. Lemola +5 more
20160 citations
Semantic Scholar

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S. Lemola — researcher profile on SciRah

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M. Hatzinger×5

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M. Hatzinger — researcher profile on SciRah

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T. Mikoteit — researcher profile on SciRah

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F. Colledge — researcher profile on SciRah