Search Results - "Christensen, Julie A E"

Video-polysomnography procedures for diagnosis of rapid eye movement sleep behavior disorder (RBD) and the identification of its prodromal stages: guidelines from the International RBD Study Group by Cesari, Matteo, Heidbreder, Anna, St. Louis, Erik K, Sixel-Döring, Friederike, Bliwise, Donald L, Baldelli, Luca, Bes, Frederik, Fantini, Maria Livia, Iranzo, Alex, Knudsen-Heier, Stine, Mayer, Geert, McCarter, Stuart, Nepozitek, Jiri, Pavlova, Milena, Provini, Federica, Santamaria, Joan, Sunwoo, Jun-Sang, Videnovic, Aleksandar, Högl, Birgit, Jennum, Poul, Christensen, Julie A E, Stefani, Ambra

“…Abstract Video-polysomnography (v-PSG) is essential for diagnosing rapid eye movement (REM) sleep behavior disorder (RBD). Although there are current American…”
Get full text

Automatic sleep classification using adaptive segmentation reveals an increased number of rapid eye movement sleep transitions by Koch, Henriette, Jennum, Poul, Christensen, Julie A. E.

“…The reference standard for sleep classification uses manual scoring of polysomnography with fixed 30‐s epochs. This limits the analysis of sleep pattern,…”
Get full text

A data-driven system to identify REM sleep behavior disorder and to predict its progression from the prodromal stage in Parkinson's disease by Cesari, Matteo, Christensen, Julie A.E., Muntean, Maria-Lucia, Mollenhauer, Brit, Sixel-Döring, Friederike, Sorensen, Helge B.D., Trenkwalder, Claudia, Jennum, Poul

“…To investigate electroencephalographic (EEG), electrooculographic (EOG) and micro-sleep abnormalities associated with rapid eye movement (REM) sleep behavior…”
Get full text

Investigation of sleep spindle activity and morphology as predictors of neurocognitive functioning in medicated patients with schizophrenia by Baandrup, Lone, Christensen, Julie A. E., Fagerlund, Birgitte, Jennum, Poul

“…Summary Neurocognitive impairment is a trait marker of schizophrenia, but no effective treatment has yet been identified. Sleep spindle deficits have been…”
Get full text

Cortical arousal frequency is increased in narcolepsy type 1 by Brink-Kjaer, Andreas, Christensen, Julie A E, Cesari, Matteo, Mignot, Emmanuel, Sorensen, Helge B D, Jennum, Poul

“…Abstract Study Objectives Hypocretin deficient narcolepsy (type 1, NT1) presents with multiple sleep abnormalities including sleep-onset rapid eye movement…”
Get full text

Rapid eye movements are reduced in blind individuals by Christensen, Julie A. E., Aubin, Sébrina, Nielsen, Tore, Ptito, Maurice, Kupers, Ron, Jennum, Poul

“…There is ongoing controversy regarding the role of rapid eye movements (EMs) during rapid eye movement (REM) sleep. One prevailing hypothesis is that EMs…”
Get full text

Nocturnal eye movements in patients with idiopathic rapid eye movement sleep behaviour disorder and patients with Parkinson’s disease by Christensen, Julie A. E., Cesari, Matteo, Pizza, Fabio, Antelmi, Elena, Frandsen, Rune Asger Vestergaard, Plazzi, Giuseppe, Jennum, Poul

“…Patients with idiopathic rapid‐eye‐movement (REM) sleep behaviour disorder (iRBD) have a high risk of converting into manifest α‐synucleinopathies. Eye…”
Get full text

Comparison of computerized methods for rapid eye movement sleep without atonia detection by Cesari, Matteo, Christensen, Julie A E, Kempfner, Lykke, Olesen, Alexander N, Mayer, Geert, Kesper, Karl, Oertel, Wolfgang H, Sixel-Döring, Friederike, Trenkwalder, Claudia, Sorensen, Helge B D, Jennum, Poul

“…Rapid eye movement (REM) sleep without atonia detection is a prerequisite for diagnosis of REM sleep behavior disorder (RBD). As the visual gold standard…”
Get full text

Validation of a new data-driven automated algorithm for muscular activity detection in REM sleep behavior disorder by Cesari, Matteo, Christensen, Julie A.E., Sixel-Döring, Friederike, Trenkwalder, Claudia, Mayer, Geert, Oertel, Wolfgang H., Jennum, Poul, Sorensen, Helge B.D.

“…•New data-driven method improves REM sleep behavior disorder (RBD) identification.•Muscular activity during non-REM sleep contributes to identify RBD…”
Get full text

Increased muscle activity during sleep and more RBD symptoms in H1N1-(Pandemrix)-vaccinated narcolepsy type 1 patients compared with their non-narcoleptic siblings by Viste, Rannveig, Follin, Louise F, Kornum, Birgitte R, Lie, Benedicte A, Viken, Marte K, Thorsby, Per M, Rootwelt, Terje, Christensen, Julie A E, Knudsen-Heier, Stine

“…Abstract Study Objectives Narcolepsy type 1 (NT1) is characterized by unstable sleep-wake and muscle tonus regulation during sleep. We characterized dream…”
Get full text

Decreased sleep spindle density in patients with idiopathic REM sleep behavior disorder and patients with Parkinson’s disease by Christensen, Julie A.E, Kempfner, Jacob, Zoetmulder, Marielle, Leonthin, Helle L, Arvastson, Lars, Christensen, Søren R, Sorensen, Helge B.D, Jennum, Poul

“…Highlights • During non-REM sleep, the sleep spindle density is reduced in idiopathic REM sleep behavior disorder (iRBD) and Parkinson’s disease (PD) patients,…”
Get full text

Polysomnographic diagnosis of REM sleep behavior disorder: a change is needed by Cesari, Matteo, Heidbreder, Anna, St. Louis, Erik K, Sixel-Döring, Friederike, Bliwise, Donald L, Baldelli, Luca, Bes, Frederik, Fantini, Maria Livia, Iranzo, Alex, Knudsen-Heier, Stine, Mayer, Geert, McCarter, Stuart, Nepozitek, Jiri, Pavlova, Milena, Provini, Federica, Santamaria, Joan, Sunwoo, Jun-Sang, Videnovic, Aleksandar, Högl, Birgit, Jennum, Poul, Christensen, Julie A E, Stefani, Ambra

Get full text

External validation of a data‐driven algorithm for muscular activity identification during sleep by Cesari, Matteo, Christensen, Julie A. E., Sorensen, Helge B. D., Jennum, Poul, Mollenhauer, Brit, Muntean, Maria‐Lucia, Trenkwalder, Claudia, Sixel‐Döring, Friederike

“…Several automated methods for scoring periodic limb movements during sleep (PLMS) and rapid eye movement (REM) sleep without atonia (RSWA) have been proposed,…”
Get full text

Data-driven modeling of sleep EEG and EOG reveals characteristics indicative of pre-Parkinson's and Parkinson's disease by Christensen, Julie A.E., Zoetmulder, Marielle, Koch, Henriette, Frandsen, Rune, Arvastson, Lars, Christensen, Søren R., Jennum, Poul, Sorensen, Helge B.D.

“…•A data-driven topic modeling approach characterizing sleep EEG and EOG is proposed.•The approach showed potential for evaluating patients with…”
Get full text

Preserved sleep microstructure in blind individuals by Aubin, Sébrina, Christensen, Julie A.E., Jennum, Poul, Nielsen, Tore, Kupers, Ron, Ptito, Maurice

“…The loss of vision, particularly when it occurs early in life, is associated with compensatory cortical plasticity not only in the visual cortical areas, but…”
Get full text

Automatic sleep classification using a data-driven topic model reveals latent sleep states by Koch, Henriette, Christensen, Julie A.E., Frandsen, Rune, Zoetmulder, Marielle, Arvastson, Lars, Christensen, Soren R., Jennum, Poul, Sorensen, Helge B.D.

“…•We use a data-driven approach to develop a general and automatic sleep classifier.•The model uses spectral EEG and EOG as well as eye correlation measures as…”
Get full text

Novel method for evaluation of eye movements in patients with narcolepsy by Christensen, Julie A.E., M.Sc. Bio.Eng., PhD, Kempfner, Lykke, M.Sc. EE., PhD, Leonthin, Helle L, Hvidtfelt, Mathias, MD, Nikolic, Miki, M.Sc. EE., PhD, Kornum, Birgitte Rahbek, M.Sc. Hum Biol, PhD, Jennum, Poul, MD, Ph.D

“…Abstract Background Narcolepsy causes abnormalities in the control of wake-sleep, non-rapid- eye-movement (non-REM) sleep and REM sleep (which includes…”
Get full text

Sleep spindle alterations in patients with Parkinson's disease by Christensen, Julie A E, Nikolic, Miki, Warby, Simon C, Koch, Henriette, Zoetmulder, Marielle, Frandsen, Rune, Moghadam, Keivan K, Sorensen, Helge B D, Mignot, Emmanuel, Jennum, Poul J

“…The aim of this study was to identify changes of sleep spindles (SS) in the EEG of patients with Parkinson's disease (PD). Five sleep experts manually…”
Get full text

Sleep-disordered breathing in Eisenmenger Syndrome by Hjortshøj, Cristel S, Jensen, Annette S, Christensen, Julie A.E, Jennum, Poul, Søndergaard, Lars

Get full text

Probabilistic Data-Driven Method for Limb Movement Detection during Sleep by Cesari, Matteo, Christensen, Julie A. E., Jennum, Poul, Sorensen, Helge B. D.

“…Periodic limb movement disorder (PLMD) is a sleep disorder characterized by repetitive limb movements (LM) during night. The gold standard for LM detection…”
Get full text