DETAIL OF ETHICS APPROVAL

This research protocol was approved by the Ethics Coordination Committee of Universiti Teknologi PETRONAS and the Research Ethics Committee of Universiti Sains Malaysia.

DATA DESCRIPTION

The details of the EEG/ERP and behavioral data (subjects’ responses) recorded during this experiment are provided below. In addition, the E-Prime stimulus design files for the stress and control conditions are also listed in Table 2.3.

Behavioral Data

Subject response (correct or incorrect or no response), reaction time (to answer the task), and subjective feedback (see Appendix 2B) were acquired after the experimental session was finished.

EEG/ERP Data

EEG raw data (nonaveraged), EEG artifacts free (averaged ERP data), E-Prime stimulus design files for control and stress conditions, behavioral responses, and event files for one subject are provided with this book. The details of these files are provided in Table 2.4. To access these files, please go to the directory BookDataChap02 in the data files accompanying this book. For the complete dataset of 44 subjects (22 control and 22 stress), please contact the authors at This email address is being protected from spam bots, you need Javascript enabled to view it

Table 2.3 EEG/ERP data description

S. No.

File name

Description

01

Mental arithmetic task control condition S1_C_L1.edf S1_C_L2.edf S1_C_L3.edf S1_C_L4.edf C1.mat

This file contains the EEG data recorded while performing the mental arithmetic task during the control condition. In the control condition, there is no environment of stress. The file name contains L1, L2, L3, and L4, which presents the levels as mentioned in the experiment design section. This data is raw and nonaveraged (BookDataChap02 EEG Raw Data). All the events are embedded in the .edf files. The file “C1.mat” is an averaged clean data of the control condition that is extracted from the raw EEG data and then averaged over the trials. The “C1.mat” is a MATLAB array file containing the averaged data of all the four levels. The procedure of extracting trials from continuous EEG data to get averaged data is followed from Ref. 12. The clean data can be found in (BookData Chap02ERP Averaged Data).

02

Mental

arithmetic task

stress condition

S1_S_L1.edf

S1_S_L2.edf

S1_S_L3.edf

S1_S_L4.edf

S1.mat

This file contains the EEG data recorded during performing the mental arithmetic task during the stress condition. In the stress condition, there is an environment of stress induction. The participant has to solve the arithmetic task while stress is induced. These. edf files also contains raw EEG and nonaveraged data.

The file “S1.mat” is the averaged clean data of stress condition that is extracted from the raw EEG data and then averaged over the trials. The file “S1.mat” is a MATLAB array file containing the averaged ERP data of all the four levels.

Table 2.4 E-Prime files of EEG stimulus experiment for stress and control conditions

S. No.

Experiment file name

Description

01

MIST_

control.es2

This file contains the experiment design for the control condition developed in E-Prime package E-Studio 2.0.

02

MIST_stress.

es2

This file contains the experiment design for the stress condition developed in E-Prime package E-Studio 2.0. To understand the trial procedure, please see the experiment design as mentioned in Section 2.4.6.

 
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