###### Abstract
Cognitive performance can be seen in a person's ability to complete cognitive activities, which include reading, writing, listening, speaking, thinking, learning, planning, solving problems, making decisions, and interacting with computers. Various studies measure cognitive performance through test results. Activity types, or task types, in learning activities are related to reading, searching, remembering, and attention [41]. One type of task used in measuring cognitive performance is the Stroop Color-Word Task (SCWT), commonly referred to as the Stroop Test, where subjects are asked to read a series of colored words and expressions as quickly as possible [42; 43; 44]. The representation of the Stroop Color Test type of cognitive task for working in industry lies in the ability of workers to cope with distractions, process information quickly and accurately, and handle complex and diverse tasks [45]. Some different techniques can be used to measure the cognitive and physiological reflex parameters of individuals exposed to noise [12]. The effects of noise can be measured through brain activity and the waves it produces [16]. Electroencephalography (EEG) is a tool that can record the electrical signals produced by the brain as actions and responses to stimuli are collected from a person [46]. Cognitive theory suggests that the brain is deeply involved in emotions. Basic emotions utilize certain cortical and subcortical systems within the brain and are distinct from the electrical and metabolic activity of the brain [47]. The function of the EEG is to record the electrical activity of the brain, where the resulting signals are sent to the nerve cells of the brain. EEG can be measured non-invasively after placing electrodes on the surface of the scalp. The advantage of using EEG is that the results can be used to determine a person's level of confrontation with noise. We can also know the constant psycho-physiological indicators in an individual, so an explicit response from the individual is not required [48]. According to cognitive theory, emotions affect the brain significantly. Basic emotions depend on specific cortical and subcortical systems and are different from the electrical and metabolic processes of the brain. Because of this, EEG is one of the most widely used and trustworthy methods of brain imaging that may be used to examine brain activity in people who are under stress, including that caused by noise [49]. EEG signals measure every change in the electric field caused by brain activity with millisecond accuracy. To determine the relationship between voltage and EEG signals, a wide range of frequency bands are often measured. Among these bands are alpha (8-12.5 Hz), theta (4-8 Hz), and beta (12.5-30 Hz) [16]. A decrease in the beta frequency range and an increase in the alpha frequency band improve cognitive function [50]. A decrease in alpha band strength and an increase in theta and beta band strength are indicative of neurological disorders [51]. The rhythm of beta forces in EEG is positively correlated with stressful scenario experiences in the temporal lobe [49]. Exposure to environmental noise has long been identified as a factor that can affect human health, including cognitive capacity. However, its impacts on specific cognitive functions such as attention, the stress level, and mental workload still require a deeper understanding. In an attempt to analyze these impacts, we adopted an EEG signal analysis approach utilizing the SCWT test, which is a powerful indicator for evaluating cognition. This study aimed to investigate the relationship between the noise type and level and cognitive performance on the SCWT cognitive task based on a power spectrum density analysis of EEG signals. We investigated how information derived from the EEG spectrum for the investigation of noise exposure affects cognitive performance by using frontal brain load indicators to analyze aspects of attention, stress, and mental workload by combining EEG recordings with cognitive task performance.