eeg and sleep physiology ppt

Eeg And Sleep Physiology Ppt -

Slide 15: Insomnia vs. Sleep State Misperception

Slide 16: Sleep Apnea (Polysomnography)

Slide 17: Epilepsy and Sleep

Slide 18: Narcolepsy


Introduction to EEG and Sleep Physiology

Electroencephalography (EEG) is a non-invasive technique used to record the electrical activity of the brain. Sleep physiology is the study of the physiological changes that occur during sleep. Understanding the relationship between EEG and sleep physiology is crucial for diagnosing and treating sleep disorders.

EEG During Sleep

During sleep, the EEG pattern changes significantly compared to wakefulness. The EEG waveform is composed of different frequency bands, including:

Stages of Sleep

Sleep is divided into two main stages: non-rapid eye movement (NREM) sleep and rapid eye movement (REM) sleep.

  • REM Sleep: Characterized by rapid eye movements, increased brain activity, and vivid dreams.
  • EEG Patterns During Sleep Stages

    Sleep Cycles

    A full sleep cycle typically lasts around 90-120 minutes and consists of stages 1-4 NREM sleep, followed by REM sleep. A normal night's sleep consists of 3-5 cycles. eeg and sleep physiology ppt

    Functions of Sleep

    Sleep plays a crucial role in:

    Sleep Disorders

    Sleep disorders, such as insomnia, sleep apnea, and restless leg syndrome, can disrupt normal sleep patterns and have significant consequences for physical and mental health.

    Conclusion

    In conclusion, EEG is a powerful tool for studying sleep physiology. Understanding the changes in EEG patterns during sleep can help diagnose and treat sleep disorders. A comprehensive understanding of sleep physiology is essential for appreciating the complex interactions between sleep, brain activity, and overall health. Slide 15: Insomnia vs

    EEG Characteristics:

    Physiology:


    Title: N2 Sleep – Sleep Spindles & K-Complexes Content:

  • Background: Mixed frequency theta with some delta (<20%). Visual: Zoomed EEG trace: a spindle (waxing-waning 12-14Hz) and a K-complex (large biphasic deflection).

  • Synaptic homeostasis:
  • Glymphatic clearance:
  • Sensory gating and arousal threshold:
  • Title: EEG & Sleep Physiology: From Brain Waves to Restorative Sleep Subtitle: Understanding Neural Correlates of Sleep Stages Presenter: [Your Name] Affiliation: [Your Institution]


    EEG Characteristics:

    Physiology:


    Slide 19: Epoch by Epoch Scoring (30 seconds)

    Slide 20: Artifacts to Recognize


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    eeg and sleep physiology ppt
    eeg and sleep physiology ppt