Beta
ManageChatDiscover
45588

Gender Difference in the Effect of Examination Stress on Brain Oscillations during Memory Tasks

Article

Last updated: 04 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

-

Abstract

Background: Researches revealed that increased levels of stress hormones lead to enhancement of memory consolidation in rodents. Recently, it became apparent that the brain oscillations reflect cognitive aspects and information processing in the brain. Quantitative electroencephalogram (qEEG) provides an objective assessment of the electrical activity of the brain via many techniques such as power spectral analysis and coherence. Aim: To assess the effect of gender on the qEEG oscillations during the delayed memory retrieval after exposure to acute stress. Subjects and Methods: This prospective (longitudinal) study was applied on 34 healthy undergraduate medical students from both genders (17 males and 17 females) in the Faculty of Medicine, Suez Canal University. The qEEG analysis was done in neurology department, Suez Canal University Hospital using the relative power (RP) during memory tasks. Serum cortisol was analyzed by enzyme linked immunosorbent assay (ELISA) as a measure for stress. Results: The results revealed insignificant effect of gender on the quantitative analysis of EEG oscillations regarding the mean relative power in all frequency bands (delta "δ": 2.36±0.72; 2.04±0.46, theta "Ɵ": 13.72±3.13; 12.72±3.58, alpha "α": 12.72±3.58; 18.50±3.81 and beta "β": 33.26±3.23; 32.72±4.47 for males and females respectively during the examination period). Whereas, there was a positive correlation between the serum cortisol level and the mean relative power of delta (r: 0.53, p=0.03), and theta (r: 0.55, p=0.02) and a negative correlation with beta (r: -0.51, p=0.04) bands in males only. Conclusion: There are positive correlations for delta and theta bands and negative correlation for beta band between the quantitative electroencephalographic analysis (RP) with the hormonal measure of the stress in spite of the insignificant changes in the EEG oscillations in the non-stress and stress periods.  

DOI

10.21608/scumj.2014.45588

Keywords

Electroencephalogram, Cortisol, qEEG

Authors

First Name

Shimaa

Last Name

Yousef

MiddleName

-

Affiliation

Department of Physiology, Faculty of Medicine, Suez Canal University, Egypt

Email

-

City

-

Orcid

-

First Name

Dalia

Last Name

Ibrahim

MiddleName

-

Affiliation

Department of Physiology, Faculty of Medicine, Suez Canal University, Egypt

Email

daliaibrahiem@yahoo.com

City

-

Orcid

-

First Name

Amani

Last Name

El-Baz

MiddleName

-

Affiliation

Department of Physiology, Faculty of Medicine, Suez Canal University, Egypt

Email

-

City

-

Orcid

-

First Name

Ahmed

Last Name

Osama

MiddleName

-

Affiliation

Department of Neurology, Faculty of Medicine, Suez Canal University, Egypt

Email

-

City

-

Orcid

-

First Name

Yasser

Last Name

El-wazir

MiddleName

-

Affiliation

Department of Physiology, Faculty of Medicine, Suez Canal University, Egypt

Email

-

City

-

Orcid

-

Volume

17

Article Issue

1

Related Issue

6817

Issue Date

2014-03-01

Receive Date

2019-08-22

Publish Date

2014-03-01

Page Start

21

Page End

28

Print ISSN

1110-6999

Online ISSN

2090-2581

Article File

SCUMJ_Volume 17_Issue 1_Pages 21-28.pdf

PDF . 195.7kB

Link

https://scumj.journals.ekb.eg/article_45588.html

Detail API

https://scumj.journals.ekb.eg/service?article_code=45588

Order

3

Type

Original Article

Type Code

938

Publication Type

Journal

Publication Title

Suez Canal University Medical Journal

Publication Link

https://scumj.journals.ekb.eg/

MainTitle

Gender Difference in the Effect of Examination Stress on Brain Oscillations during Memory Tasks

Details

Type

Article

Created At

22 Jan 2023