arousal_sleep_attention

arousal_sleep_attention - Arousal, Sleep, Attention and...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Arousal, Sleep, Attention and Selective Engagement Stephen E. Nadeau, M.D. Midbrain Reticular Activating System: Arousal Projects to intralaminar nuclei of thalamus, which send diffuse projections to cerebral cortex. Projects to relay neurons throughout thalamus. Projects to nucleus reticularis, which regulates the thalamic gate. Figure 12-28 Nadeau SE, Crosson B. Subcortical aphasia. Brain Lang 1997;58:355-402, 436-458. Major Structures Implicated in Sleep Structure Function MRF, pedunculopontine nucleus, laterodorsal tegmental nucleus (ACh); tuberomammillary nucleus (histamine) Arousal, wakefulness Caudal pontine reticular formation Hypnogenic center Rostral pontine tegmentum REM sleep architecture Ventrolateral preoptic nucleus (anterior to hypothalamus) Hypnogenic center Nucleus basalis of Meynert (ACh) High freq, unsynchronized pattern of EEG in awake, eyes-open state Peri-locus ceruleus Suppression of muscle tone during REM sleep Suprachiasmatic nuclei 24 hour awake-sleep cycle 12-30 Disorders of Sleep Architecture Narcolepsy (narcolepsy, cataplexy, sleep paralysis, hypnogogic/hypnopompic hallucinations) Dissociation of REM, dreams, loss of muscle tone from normal context...
View Full Document

Page1 / 21

arousal_sleep_attention - Arousal, Sleep, Attention and...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online