Electroencephalographic Activity in Patients with Claustrophobia: A Pilot Study
Dunya Moradi1, Reza Eyvazpour2, Fariborz Rahimi3
1Department of Medical Bioengineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Bonab, Iran.
Journal of Medical Signals and Sensors
|November 25, 2021
Summary
Claustrophobic patients exhibit distinct electrocortical activity changes in confined spaces compared to healthy individuals. Their brain activity patterns, particularly in theta and alpha bands, differ significantly during exposure to small environments.
Area of Science:
- Neuroscience
- Psychophysiology
Background:
- Claustrophobia triggers physiological responses like increased heart rate.
- Electrocortical activity during phobic exposure in claustrophobia is understudied.
Purpose of the Study:
- To investigate electrocortical activity changes in claustrophobic patients during exposure to confined spaces.
- To compare electroencephalographic (EEG) patterns between claustrophobic patients and healthy controls in a controlled environment.
Main Methods:
- Continuous electroencephalographic (EEG) recording in two claustrophobic patients and two healthy controls.
- Comparison of relative power spectral density (rPSD) in five EEG frequency bands between open and confined environments.
- Analysis of cortical area differences in electrical activity patterns.
Main Results:
- Significant interaction between participant group and environment (P < 0.01) indicating differential EEG changes.
- Claustrophobic patients showed decreased theta band rPSD, while controls showed an increase.
- Both groups showed increased alpha band rPSD, but significantly more in claustrophobic patients.
Conclusions:
- In vivo exposure to confined environments alters EEG activity differently in claustrophobic individuals versus controls.
- Distinct differences in electrocortical activity are prominent in central and parietal cortical areas.
- Alpha and theta frequency bands are key indicators of these differential responses.
