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Action-Monitoring Dysfunction in Obstructive Sleep Apnea - A Pilot Study
Ping-Song Chou1,2, Chung-Yao Hsu1,3, Meng-Ni Wu1
1Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
Plos One
|June 15, 2016
Summary
Obstructive sleep apnea (OSA) impairs action monitoring, a key frontal lobe function. Sleep fragmentation in OSA patients significantly affects their ability to monitor and correct actions.
Area of Science:
- Neuroscience
- Sleep Medicine
- Cognitive Psychology
Background:
- Obstructive sleep apnea (OSA) is linked to frontal lobe dysfunction.
- Action monitoring, a critical frontal cognitive function, has not been studied in OSA patients.
Purpose of the Study:
- To investigate action monitoring deficits in patients with moderate-severe obstructive sleep apnea (OSA).
- To test the hypothesis that OSA patients exhibit impaired action monitoring using the modified Flanker task.
Main Methods:
- Recruited 25 untreated OSA patients and 12 controls, matched for key demographics.
- Conducted overnight polysomnography and administered a modified Flanker task.
- Analyzed performance metrics including correct response rates and post-error correction rates.
Main Results:
- OSA patients showed significantly lower correct response rates in all Flanker task trials (congruent and incongruent) compared to controls.
- The post-error correction rate was significantly reduced in OSA patients.
- Arousal index correlated negatively with correct response rates and post-error correction, indicating sleep fragmentation impacts performance.
Conclusions:
- Action monitoring function is impaired in patients with obstructive sleep apnea.
- Sleep fragmentation emerges as a primary factor contributing to these action monitoring deficits in OSA.
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