Eeg And Sleep Physiology Ppt ✪ | Plus |
Include a clean, labeled diagram of skull electrode placements.
Waveform Frequency (Hz) Associated State --------------------------------------------------------- Beta 13 – 30 Hz Active wakefulness, intense focus Alpha 8 – 12 Hz Relaxed wakefulness (eyes closed) Theta 4 – 7 Hz Drowsiness and light sleep Delta 0.5 – 3.5 Hz Deep, slow-wave sleep 2. Neurobiology of the Sleep-Wake Cycle eeg and sleep physiology ppt
EEG and Sleep Physiology Slide 1: Learning Objectives Slide 2: Historical Background (The discovery of REM) Slide 3: What is an EEG? (Principles & Setup) Slide 4: EEG Waveform Parameters (Voltage vs. Frequency) Slide 5: The Five Major Brain Waves (Beta, Alpha, Theta, Delta) Slide 6: Electrode Placement: The 10-20 System Slide 7: Wakefulness (Beta & Alpha patterns) Slide 8: Stage N1: The Transition (Theta & SREMs) Slide 9: Stage N2: Light Sleep (Sleep Spindles & K-Complexes) Slide 10: Visual Slide: Example of a Sleep Spindle Slide 11: Visual Slide: Example of a K-Complex Slide 12: Stage N3: Deep Slow-Wave Sleep (Delta activity) Slide 13: Stage REM: Paradoxical Sleep (Sawtooth waves, Atonia) Slide 14: Visual Slide: Polysomnography montage (EEG + EOG + EMG) Slide 15: The Hypnogram (Visualizing the Night's Cycle) Slide 16: Physiology: The Circadian Rhythm (SCN & Melatonin) Slide 17: Physiology: The Neurochemistry of Sleep (GABA, ACh, etc.) Slide 18: Functions of Sleep (Restoration, Memory, Glymphatic) Slide 19: Age-Related Changes in Sleep Architecture Slide 20: Common EEG Artifacts & Variants Slide 21: Summary & Conclusions Slide 22: Q&A / References Include a clean, labeled diagram of skull electrode
Stage R is the most fascinating stage for neurophysiologists. (Principles & Setup) Slide 4: EEG Waveform Parameters
: Transition from wakefulness; characterized by theta waves.
This stage constitutes the highest percentage of total night sleep. It is defined by two signature EEG markers:
Sleep is a naturally recurring state of mind and body, characterized by altered consciousness, inhibited sensory activity, and inhibition of nearly all voluntary muscles.
