Metabolic and Cognitive Parameters Following Partial Sleep Deprivation
Metabolic and Cognitive Effects of Sleep Deprivation
Visão geral do estudo
Status
Status
Condições
Condições
Intervenção / Tratamento
Intervenção / Tratamento
Descrição detalhada
Tipo de estudo
Tipo de estudo
Inscrição (Real)
Inscrição
Estágio
Estágio
- Não aplicável
Contactos e Locais
Contato de estudo
Contato de estudo
- Nome: Jonathan Cedernaes, M.D., PhD
- E-mail: jonathan.cedernaes@neuro.uu.se
Estude backup de contato
- Nome: Christian Benedict, PhD
- E-mail: christian.benedict@neuro.uu.se
Locais de estudo
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Uppsala County
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Uppsala, Uppsala County, Suécia, 75105
- Department of Neuroscience, Uppsala University
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Critérios de participação
Critérios de elegibilidade
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Descrição
Inclusion Criteria:
- Male
- Age 20-28y
- Healthy (self-reported) and not on medication
- Non-smoking
- Normal sleep-wake rhythm (i.e. 7-8 h per night, self-reported and verified by sleep diaries)
- Normal dietary habits (regular meal pattern with daily breakfast)
Exclusion Criteria:
- Major illness
- Taking any serious medications
- Any sleep conditions (e.g. irregular bedtimes, sleep complaints)
- Any dietary issues with the food items provided
- A history of endocrine, neurological or psychiatric disorders
- Shift work in the previous 3 months
- Travel over several time zones within the previous two months
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Ciência básica
- Alocação: Randomizado
- Modelo Intervencional: Atribuição cruzada
- Mascaramento: Solteiro
Número de braços
Armas e Intervenções
Grupo de Participantes / BraçoGrupo de Participantes / Braço |
Intervenção / TratamentoIntervenção / Tratamento |
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Experimental: Partial sleep deprivation
Partial sleep deprivation: participants will have a 4-h sleep opportunity before a 'Blood Sample' will be taken, and the 'Memory tasks', 'Working memory function task' and 'Portion size task' will be performed.
This will be followed by an 'Interference task', followed by repeated blood sampling and an 'Intake task'.
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Os participantes recebem um programa de computador que lhes dá a oportunidade de escolher as porções de uma variedade de alimentos que gostariam de consumir
In the morning following partial sleep deprivation or normal sleep, a blood sample will be taken to assess the level of metabolism-linked and neurodegenerative-linked molecules, as well as to assay blood serum and plasma for the presence of hormones involved in hunger such as ghrelin
30-minute interference task
Participants will be allowed to learn a procedural memory task before going to bed.
Participants will be retested in the morning to assess their change in performance.
Other memory tests will also be given to assess the working memory performance in the morning following the intervention.
After a normal night of sleep or partial sleep deprivation, participants are presented with an ad libitum meal choice and can select the amount to ingest during a limited time window.
Amount and selection will be recorded
Participants will be evaluated on their working memory performance in the morning following either nighttime intervention (NS or PSD)
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Experimental: Normal sleep
Normal sleep: participants will have an 8-h sleep opportunity before a 'Blood Sample' will be taken, and the 'Memory tasks', 'Working memory function task' and 'Portion size task' will be performed.
This will be followed by an 'Interference task', followed with repeated blood sampling and an 'Intake task'.
|
Os participantes recebem um programa de computador que lhes dá a oportunidade de escolher as porções de uma variedade de alimentos que gostariam de consumir
In the morning following partial sleep deprivation or normal sleep, a blood sample will be taken to assess the level of metabolism-linked and neurodegenerative-linked molecules, as well as to assay blood serum and plasma for the presence of hormones involved in hunger such as ghrelin
30-minute interference task
Participants will be allowed to learn a procedural memory task before going to bed.
Participants will be retested in the morning to assess their change in performance.
Other memory tests will also be given to assess the working memory performance in the morning following the intervention.
After a normal night of sleep or partial sleep deprivation, participants are presented with an ad libitum meal choice and can select the amount to ingest during a limited time window.
Amount and selection will be recorded
Participants will be evaluated on their working memory performance in the morning following either nighttime intervention (NS or PSD)
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O que o estudo está medindo?
Medidas de resultados primários
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Memory tasks
Prazo: Change in memory performance between learning (at 2230 hours in NS and PSD condition) before going to sleep, and at 0800 and 0930 hours (following PSD or NS)
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Procedural memory performance after learning a procedural memory task close to going to bed, followed by either partial sleep deprivation (PSD) or normal sleep (NS), and comparing the performance the following morning at two time points.
Participants spatial memory performance in the morning at two time points, following PSD will also be compared with that following NS, after having learned such a memory task in the evening before going to bed.
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Change in memory performance between learning (at 2230 hours in NS and PSD condition) before going to sleep, and at 0800 and 0930 hours (following PSD or NS)
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Medidas de resultados secundários
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Circulating hormone levels
Prazo: Change in circulating hormone levels and other metabolism-linked and neurodegeneration-associated molecules at 0730, 0830, 0910, 0925, 0940, 1010, 1040, 1105, and 1150 hours following the respective nighttime intervention and after the interference task
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Interference task given at 0900 hours
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Change in circulating hormone levels and other metabolism-linked and neurodegeneration-associated molecules at 0730, 0830, 0910, 0925, 0940, 1010, 1040, 1105, and 1150 hours following the respective nighttime intervention and after the interference task
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Intake task
Prazo: Change in intake at around 1200 hours, following the respective nighttime intervention (NS or PSD)
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Participants are presented with an ad libitum meal choice and can select the amount to ingest during a limited time window.
Amount and selection will be recorded.
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Change in intake at around 1200 hours, following the respective nighttime intervention (NS or PSD)
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Working memory function task
Prazo: Change in memory performance at 0800 hours and after the interference task again at 0930 hours (between and following PSD or NS)
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Participants will be evaluated on their working memory performance in the morning following either nighttime intervention (NS or PSD) and before and after an interference task
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Change in memory performance at 0800 hours and after the interference task again at 0930 hours (between and following PSD or NS)
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Portion Size Task
Prazo: Change in selected portion size from baseline (at 0800 hours following the nighttime intervention), to one hour later, i.e. after an interference task
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Participants will be evaluated on their tendency to choose larger or smaller portions of a variety of meal items on a computer screen.
This will be conducted both following partial sleep deprivation and normal sleep, and changes before and after a short interference task will be compared between these two conditions.
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Change in selected portion size from baseline (at 0800 hours following the nighttime intervention), to one hour later, i.e. after an interference task
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Colaboradores e Investigadores
Patrocinador
Patrocinador
Investigadores
Investigadores
- Investigador principal: Christian Benedict, PhD, Department of Neuroscience, Uppsala University
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Início do estudo
Conclusão Primária (Real)
Conclusão Primária
Conclusão do estudo (Real)
Conclusão do estudo
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimado)
Primeira postagem
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última Atualização Postada
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Última verificação
Mais Informações
Termos relacionados a este estudo
Termos MeSH relevantes adicionais
- Manifestações Neurológicas
- Doenças do Sistema Nervoso
- Transtornos Mentais, Desordem Mental
- Distúrbios do Sono Vigília
- Dissônias
- Condições Patológicas, Sinais e Sintomas
- Sinais e sintomas
- Privação de sono
- Técnicas de investigação
- Manipulação de amostras
- Técnicas de laboratório clínico
- Técnicas e procedimentos de diagnóstico
- Diagnóstico
- Perfurações
- Procedimentos cirúrgicos, operatórios
- Coleção de amostras de sangue
Outros números de identificação do estudo
Outros números de identificação do estudo
- SleepPartialJCCB2013
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