Aging and changes in phasic events during sleep

Wauquier, A.

doi:10.1016/0031-9384(93)90095-w

Cited by 53 publications

(34 citation statements)

References 25 publications

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“…Although the relative percentage of N2 sleep changes very little over time, the landscape of this sleep stage undergoes signi fi cant changes. Sleep spindles and K-complexes become less numerous, and the frequency of the spindles become slower as we age ( Table 6.1 ) [ 11 ] .…”

Section: Changes In Sleep Architecture As We Agementioning

confidence: 99%

Sleep and Aging

Ebben

2012

Handbook on the Neuropsychology of Aging and Dementia

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The purpose of this chapter is to discuss changes in sleep quality and architecture that occur as one ages. Normal age related changes in sleep architecture will be discussed fi rst, followed by sleep and circadian rhythm disorders that increase in prevalence as we age. Finally, a short section at the end of this chapter discusses neurological disorders more frequently seen in older adults, and their impact on sleep.There is a general perception that degradation of sleep quality is a normal part of aging. In fact, practitioners who see geriatric patients on a regular basis often hear complaints of sleep difficulties in their patients. As we age, a number of age-related health problems are associated with difficulty sleeping. It is often difficult to differentiate sleep problems secondary to underlying health problems or medication effects from primary sleep disorders. This chapter will review the changes that occur in sleep quality as one ages and will address sleep disorders often seen in the older adults. The data discussed within this chapter is almost exclusively based on defining age chronologically. Some have argued that subjective or physiological age and time from death are more accurate ways of defining age; however, chronological age is the most consistent definition for aging. Therefore, it is the one used within this chapter. Changes in Sleep Architecture as We AgeA number of studies have been conducted to look at changes in sleep architecture over the life span. One of the most consistent age-related changes in sleep architecture is a decline in delta or slow-wave sleep (SWS). SWS is de fi ned electrographically by low-frequency (0.5-2 Hz), high-amplitude (>75 m V) waveforms [ 1 ] and is primarily con fi ned to the fi rst half of the sleep

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Section: Changes In Sleep Architecture As We Agementioning

confidence: 99%

Sleep and Aging

Ebben

2012

Handbook on the Neuropsychology of Aging and Dementia

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“…In wakefulness with eyes open, the EEG shows mainly a beta activity (frequencies higher than 13 cycles per minute or hertz (Hz)). During wakefulness with eyes closed, an alpha rhythm predominates (8)(9)(10)(11)(12)(13). During Stage 1, a period of transition from wakefulness to sleep that occupies about 5% of total sleep time, the alpha rhythm is replaced with a slower theta rhythm (4)(5)(6)(7)(8).…”

Section: Normal Agingmentioning

confidence: 99%

Sleep and quantitative EEG in neurodegenerative disorders

Petit

Gagnon

Fantini

et al. 2004

Journal of Psychosomatic Research

308

204

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“…Further analysis including more PD and iRBD patients, together with a more in-depth investigation of cognitive decline and disease severity would be needed to evaluate the relation of abnormalities in SS development in the disease process, and the use of SS as a prognostic marker. Additionally, SS density has also been reported decreased for other conditions such as Dementia, Alzheimer's disease (AD) and mild cognitive impairment (Rauchs et al, 2008;Westerberg et al, 2012;Latreille et al, 2015), and is also a sign of normal aging (Wauquier, 1993;De Gennaro and Ferrara, 2003;Ktonas et al, 2009). …”

Section: Discussionmentioning

confidence: 99%