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The Computer Simulation for Triggering Anxiety in Panic Disorder Patients Modulates the EEG Alpha Power during an

Luiza Di Giorgio Silva¹, Danielle Aprigio¹, Victor Marinho²

¹Neurophysiology and Neuropsychology of Attention Laboratory, Institute of Psychiatry, Federal University of Rio de Janeiro, Rio de Janeiro 22290-140, Brazil; luizadigiorgio@gmail.com (L.D.G.S.); danyaprigio@gmail.com (D.A.); marianagongora@gmail.com (M.G.); juju_bitt@yahoo.com.br (J.B.); bruna_velasques@yahoo.com.br (B.V.).

|November 1, 2024

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Summary

Panic disorder patients exhibit reduced EEG alpha power and faster reaction times, suggesting increased processing of anxiety stimuli and potential impulsivity. These findings highlight cognitive differences in individuals with panic disorder.

Area of Science:

Neuroscience
Psychiatry
Cognitive Psychology

Background:

Panic disorder (PD) is characterized by heightened anxiety and fear responses.
Understanding the neurophysiological underpinnings of PD is crucial for developing effective interventions.

Purpose of the Study:

To investigate differences in electroencephalography (EEG) alpha dynamics and reaction times between PD patients and healthy controls.
To explore the impact of a computer simulation on these measures.

Main Methods:

EEG alpha power and reaction time were measured in nine PD patients and ten healthy controls.
Measurements were taken before and after a computer simulation task.

Main Results:

PD patients showed significantly decreased EEG alpha power compared to controls (p ≤ 0.0125).

Keywords:

EEG alpha power computer simulation oddball paradigm panic disorder working memory

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Both groups exhibited increased cortical oscillations post-simulation, with exceptions in PD patients.

PD patients demonstrated faster reaction times during the oddball task (p = 0.002).

Conclusions:

Reduced EEG alpha power in PD may reflect heightened processing of anxiogenic stimuli and impaired inhibitory control.
Faster reaction times in PD patients suggest cognitive symptoms related to impulsivity and reactivity.