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Quantification of Physiological Disparities and Task Performance in Stress and Control Conditions

Subhani, Rauf and Xia, Likun and Malik, Aamir Saeed (2013) Quantification of Physiological Disparities and Task Performance in Stress and Control Conditions. In: 35th IEEE International Conference of Engineering in Medicine and Biology (EMBC), July 03-07, 2013, Osaka, Japan.

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Official URL: http://embc2013.embs.org/

Abstract

In mental stress studies, cerebral activation and autonomic nervous system are important distinctly. This study aims to analyze disparities associated with scalp potential, which may have impact on autonomic activation of heart during mental stress. Ten healthy subjects participated in this study that performed arithmetic tasks in stress and control environment. Task difficulty was calculated from their correct responses. During the experiment, electroencephalogram (EEG) and electrocardiogram (ECG) signals were recorded concurrently. Sympathetic innervation of heart was estimated from heart rate (HR), which is extracted from the ECG. The value of theta Fz/alpha Pz was measured from EEG scalp potential. The results show a significant surge in the value of theta Fz/alpha Pz in stress as compared to baseline (p<0.013) and control (p<0.042). The results also present tachycardia while in stress as compared to baseline (p<0.05). Task difficulty in stress is also considerably higher than control environment (p<0.003).

Item Type:Conference or Workshop Item (Poster)
Subjects:R Medicine > RE Ophthalmology
R Medicine > RL Dermatology
Academic Subject One:EEG
Departments / MOR / COE:Centre of Excellence > Center for Intelligent Signal and Imaging Research
Departments > Electrical & Electronic Engineering
Mission Oriented Research > Health
ID Code:10911
Deposited By: Dr. L Xia
Deposited On:16 Dec 2013 23:48
Last Modified:16 Dec 2013 23:48

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