## Materials and Methods
### Assessment of Attentional Function  
The attentional function was measured by EEG/ERP analysis via the oddball visual paradigm and the cognitive battery psychological test using a computer interface. The go/no-go test was employed. It was used to monitor, update, shift, and inhibit working memory capacities. Trained research assistants assessed the experimental subjects. The accuracy and response times were recorded and expressed as a percentage of accuracy in milliseconds (ms) during the test session. Figure 1: The timeline of the study. The subjects performed a modified go/no-go task [26]. Subjects were exposed to a set of fish and sharks, and they were asked to remember the fish. Subjects were required to recall them when asked to select only fish. During this task, fish and sharks that served as go and no-go signals were presented on a monitor at a distance of around 150 cm from the subjects' eyes. The fish represented the 'go' condition with 75% probability (60 stimuli), and the sharks represented the 'no-go' condition with 25% probability (20 stimuli). Reaction buttons were placed under the subjects' palms in a soundproofed and electrically protected chamber. Subjects were asked to press the response pad as quickly as possible (with their dominant hand) when they saw the fish (go stimuli) appear on the computer screen. The subjects were asked to withhold their reactions when they saw the sharks (no-go stimuli). The order of conditions was counterbalanced across subjects (Figure 2). An Electro-Cap was used for the EEG/ERP recordings (EEG, eegoTM, ANT Neuro, PE Hengelo, Netherlands). A 32-channel active set of electrodes was pre-mounted in an elastic Electro-Cap (WaveguardTM original EEG cap, ANT Neuro, PE Hengelo, Netherlands) according to the International 10-20 Electrode Positioning System. The Waveguard original EEG cap is lightweight, and the flexible and breathable cap fabric enables comfortable recordings. A ground electrode was inserted between the electrodes Fz and Cz. Manual reference electrodes were placed on ipsilateral mastoids (M1 and M2), and Fp1 and Fp2 electrodes were employed for ocular artifact detection. The resistance of the electrode was less than 10 k\(\Omega\). The EEG amplified and captured the 0.05 to 100 Hz bandpass during the experiment, and data were saved for offline processing. ERPs were digitally filtered with a cut-off bandpass of 0.1-30 Hz. All artifacts were removed from the continuous EEG before extracting ERP waves. EEG was allocated into epochs ranging from \(-\)100 ms pre-stimulus to 500 ms post-stimulus. The baseline correction was applied to each epoch. The analysis excluded any voltage changes below 0.1 \(\upmu\)V or above 70 \(\upmu\)V from the analysis. EEG epochs with absolute amplitudes greater than 100 \(\upmu\)V were automatically flagged and removed. Before averaging, all channels were subjected to artifact rejection with a threshold of \(\pm\)100 \(\upmu\)V. ERP waveforms were generated to investigate the ERP components, where the target stimuli evoked reactions of frequent (go) stimuli (75% probability, 60 stimuli). The infrequent (no-go) stimuli were non-target conditions presented randomly with a probability of 25% and 20 stimuli, and this was named the oddball paradigm. Figure 2: Schematic representation of go/no-go (fish/shark) experimental design [26]. The interstimulus interval was 1000 ms. The amplitude (\(\mu\)V) and latency (ms) of the ERP signals were measured. Two blocks of cognitive function tests were provided to the subjects. Subjects were informed to pay attention to the stimuli of each block of the cognitive test and respond to each stimulus by pressing the response button in front of them. The total recording time was 5 min for each block of the cognitive test. The analysis was performed using ASATM 4.0 analysis software (ANT Neuro, PE Hengelo, The Netherlands). The ASATM is a highly flexible EEG/ERP and the MEG analysis software package provides source reconstruction, signal analysis, and MRI processing tools.