Eeg And Sleep Physiology Ppt ✓ | PREMIUM |

Slide 10: Clinical Application – EEG Abnormalities in Sleep Disorders

: Prominent during drowsiness and light sleep (Stage N1). eeg and sleep physiology ppt

Human sleep is broadly divided into two distinct states: sleep and Rapid Eye Movement (REM) sleep. According to AASM guidelines, NREM is further subdivided into three stages (N1, N2, N3). A typical night consists of 4 to 5 cycles through these stages, each lasting roughly 90 to 120 minutes. Slide 10: Clinical Application – EEG Abnormalities in

Electroencephalography (EEG) is the primary noninvasive tool for measuring brain electrical activity and is central to characterizing sleep. Sleep is an active, regulated physiological state composed of multiple stages with distinct EEG signatures that reflect underlying neural network dynamics. Understanding EEG patterns across wakefulness and sleep informs basic neuroscience, clinical sleep medicine, and cognitive research. A typical night consists of 4 to 5

A full night’s sleep consists of several 90-to-120-minute cycles, alternating between NREM (N1, N2, N3) and REM sleep. As the night progresses, the duration of N3 (deep sleep) decreases, while the duration of REM sleep increases. Dominated by N3 (deep delta waves). Late Night: Dominated by N2 and REM. 4. Clinical Significance of Sleep EEG

Obstructive or central respiratory pauses cause recurrent oxygen desaturations. These episodes typically terminate in abrupt EEG arousals (sudden shifts in EEG frequency lasting ≥3is greater than or equal to 3

Disclaimer: This information is for educational purposes only and should not replace professional medical advice.