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Delta Rhythm (0)
Articles on Delta Rhythm
Abnormal EEGs in cognitively and physically healthy oldest old: findings from the 90+ study.
People aged 90 years and older (oldest old), the fastest growing segment of the United States population, are known to have high rates of spells of all types, including strokes, transient ischemic attacks, and seizures. This study examined the prevalence of EEG abnormalities in 12 physically and cog...
Identifying robust and sensitive frequency bands for interrogating neural oscillations
Recent years have seen an explosion of interest in using neural oscillations to characterize the mechanisms supporting cognition and emotion. Oftentimes, oscillatory activity is indexed by mean power density in predefined frequency bands. Some investigators use broad bands originally defined by prom...
Sleep and brain energy levels: ATP changes during sleep.
We here report that ATP levels, the energy currency of brain cells, show a surge in the initial hours of spontaneous sleep in wake-active but not in sleep-active brain regions of rat. The surge is dependent on sleep but not time of day, since preventing sleep by gentle handling of rats for 3 or 6 h...
The onset of the adolescent delta power decline occurs after age 11 years: a comment on Tarokh and Carskadon.
Rapid oscillatory activity in delta brushes of premature and term neonatal EEG
We compared frequency and power of neonatal EEG delta brush rapid oscillatory activity (ROA) using multiple band frequency analysis (MBFA) in three groups; pre-term (PT, post-conceptional age 33-35.6 weeks, n=5); full-term (FT, 39.4-40.6 weeks, n=5) and pre-term or full-term with phenobarbital expos...
Developmental changes in the human sleep EEG during early adolescence.
To use time-frequency analysis to characterize developmental changes in the human sleep electroencephalogram (EEG) across early adolescence.
Light sleep and sleep time misperception Relationship to alphadelta sleep
This study of a large prospective sample provides evidence for the association of alpha-delta sleep with subjective sensation of light sleep and with sleep time underestimation. SIGNIFICANCE: Alpha-delta sleep may be a marker of the physiological disorder underlying light sleep and sleep state mispe...
Noradrenergic control of cortico-striato-thalamic and mesolimbic cross-structural synchrony.
We simultaneously recorded local field potentials and single-neuron activity across 10 interconnected brain areas (ventral striatum, frontal association cortex, hippocampus, primary motor cortex, orbital frontal cortex, prelimbic cortex, dorsal lateral striatum, medial dorsal nucleus of thalamus, su...
Altered interaction between cardiac vagal influence and delta sleep EEG suggests an altered neuroplasticity in patients suffering from major...
Major depressive disorder (MDD), which is associated with altered neuroplasticity and increased relative cardiac sympathic activity, enhances the risk of cardiovascular pathologies. Interaction between cardiac sympatho-vagal indexes and delta sleep power is probably altered in MDD....
Abnormal sleep/wake dynamics in orexin knockout mice.
We developed an EEG spectral analysis technique to determine whether the state instability in a mouse model of narcolepsy reflects abnormal sleep or wake states, faster movements between states, or abnormal transitions between states....