Biomaterial Database

Sleep and cognitive functions in normal older adults. 1985

D T Berry, and W B Webb

Data on cognitive and sleep variables were collected from a large, normal aging sample. The sleep and cognitive variables selected for the study had all been demonstrated previously to be sensitive to aging processes. Only two sleep variables, number of awakenings and time in Stage 1 sleep, correlated with cognitive scores. The limited number of relationships between sleep and cognitive variables was interpreted as consistent with the discontinuity hypothesis. This formulation suggests that relationships between biological and psychological measures are only present after a threshold of deterioration in the biological substrates is passed. Thus the paucity of relationships between the two variable classes is predicted in this normal aging sample.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D003071	Cognition	Intellectual or mental process whereby an organism obtains knowledge.	Cognitive Function,Cognitions,Cognitive Functions,Function, Cognitive,Functions, Cognitive
D004569	Electroencephalography	Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain.	EEG,Electroencephalogram,Electroencephalograms
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D000375	Aging	The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.	Senescence,Aging, Biological,Biological Aging
D012890	Sleep	A readily reversible suspension of sensorimotor interaction with the environment, usually associated with recumbency and immobility.	Sleep Habits,Sleeping Habit,Sleeping Habits,Habit, Sleep,Habit, Sleeping,Habits, Sleep,Habits, Sleeping,Sleep Habit
D012894	Sleep Stages	Periods of sleep manifested by changes in EEG activity and certain behavioral correlates; they formerly included Stage 1: sleep onset, drowsy sleep; Stage 2: light sleep; Stages 3 and 4: delta sleep, light sleep, deep sleep, telencephalic sleep. In 2007, sleep stages were redefined by The American Academy of Sleep Medicine (AASM) as: N1-N2 (sleep onset - light sleep), N3 (SLOW-WAVE SLEEP), and REM SLEEP.	N1-Sleep,N2-Sleep,NREM Stage 1,NREM Stage 2,N1 Sleep,N2 Sleep,Sleep Stage,Stage, Sleep,Stages, Sleep