Question
An EEG record during NREM sleep shows ______ waves
The correct answer is
Delta
NREM Sleep EEG Wave Identification
Electroencephalogram (EEG) measures the brain's electrical activity. Different stages of sleep exhibit characteristic EEG wave patterns.
Brain Wave Types and Sleep Stages:
- Beta Waves: Associated with active thinking and alertness during wakefulness.
- Alpha Waves: Typically seen when relaxed but awake, often with eyes closed.
- Theta Waves: Appear during drowsiness and the initial stages (N1 and N2) of Non-Rapid Eye Movement (NREM) sleep.
- Delta Waves: High-amplitude, low-frequency waves that dominate the deeper stages (N3) of NREM sleep, also known as slow-wave sleep.
The question asks about the EEG record during NREM sleep. While Theta waves are present in lighter stages, Delta waves are the hallmark characteristic of the deeper stages of NREM sleep (Stage N3).
Therefore, an EEG record during NREM sleep primarily shows Delta waves, signifying deep, restorative sleep.
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Important Questions from Nervous system - Teaching
- Arrange the sequence of the Central Nervous System:
A. Dura matter
B. Sub-arachnoid space
C. Cerebrospinal Fluid
D. Arachnoid membrane
Choose the correct answer from the options given below: - The most recent reported evolutionary development of the brain convulsions has two main regions -
A. Dorsal portion
B. Ventral portion
C. Gyri
D. Sulci
Choose the most appropriate answer from the options given below: - Which of the neuron parts are in correct sequence:
A. Dendrite
B. Cell body
C. Axon
D. End Brush
E. Terminal Bottom
Choose the correct answer from the options given below: - The inner most meninx which adheres to the surface of the central nervous system is.
- The basal ganglia structures dominate the entire motor functions of -
A. Elephant
B. Human
C. Birds
D. Reptiles
Choose the most appropriate answer from the options given below:
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