Eeg And Sleep Physiology Ppt ~repack~ -

The EEG records different types of waves based on frequency (speed) and amplitude (size):

Characterized by a shortened REM latency (entering REM sleep almost immediately after falling asleep). of these EEG patterns or advanced signal processing techniques?

: The EMG channel drops to its lowest baseline level of the entire night. The brain sends inhibitory signals down the brainstem to alpha motor neurons, preventing the physical acting out of dreams. Slide 9: Neural Mechanisms Driving Sleep Physiology eeg and sleep physiology ppt

: Distinct bursts of 11–16 Hz activity (most commonly 12–14 Hz) lasting at least 0.5 seconds.

To accurately identify REM sleep on a slide, look for three co-occurring signals: The EEG records different types of waves based

High amplitude, low frequency. These represent deep, slow-wave sleep (NREM Stage 3). 4. The Stages of Sleep and Their EEG Signatures

The in the hypothalamus acts as the primary master switch for sleep. The VLPO releases GABA and galanin, which inhibit the waking centers of the ARAS. The Flip-Flop Switch The brain sends inhibitory signals down the brainstem

: Cortical responses to internal or external stimuli, representing a mechanism that keeps the cortex suppressed. Slide 7: Non-REM Stage N3 – Slow-Wave Sleep (SWS) Core Concept : Deep, highly synchronized, restorative sleep.

To initiate sleep, the wake-promoting circuits must be inhibited.