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Polygraphic Recording Procedure for Measuring Sleep in Mice
Published on: January 25, 2016
Chemosensory event-related potentials during sleep--a pilot study.
Boris A Stuck1, Heike Weitz, Karl Hörmann
1Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Mannheim, Germany.
Neuroscience Letters
|August 29, 2006
Summary
Cortical chemosensory event-related potentials (ERPs) were recorded during sleep using olfactory and trigeminal stimuli. These findings suggest that the brain processes smell and trigeminal sensations during sleep.
Area of Science:
- Neuroscience
- Sleep Research
- Sensory Physiology
Background:
- Chemosensory perception, including olfaction and trigeminal sensation, is typically studied during wakefulness.
- Understanding sensory processing during sleep is crucial for comprehending brain function across different states.
Purpose of the Study:
- To investigate the feasibility of recording cortically generated chemosensory event-related potentials (ERPs) during sleep.
- To assess olfactory and trigeminal sensory processing during various sleep stages.
Main Methods:
- 14 healthy female volunteers underwent overnight polysomnography to monitor sleep stages.
- Chemosensory ERPs were elicited using olfactory (4ppm H2S) and trigeminal (40% CO2) stimulation.
- Air-dilution olfactometry was employed for stimulus delivery.
Main Results:
- Chemosensory ERPs were successfully recorded in some participants during sleep for both olfactory and trigeminal stimuli.
- Olfactory ERP latencies increased and amplitudes grew during light and slow-wave sleep compared to baseline.
- N1 latencies for trigeminal stimulation were longest during REM sleep.
Conclusions:
- Cortically generated chemosensory ERPs can be recorded during sleep.
- These findings indicate that the brain processes olfactory and trigeminal stimuli at a cortical level during sleep, even in different sleep stages.
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