The Impact of Confined and Small-Space Environments on Human Emotions and Behavioral Performance

Abstract

This study conducted a 3-day simulated experiment in a narrow, confined environment (an 8-square-meter isolation room). By integrating daily emotional questionnaires, continuous electroencephalography (EEG) measurements, and saliva and urine cortisol tests, the research explored the impact of environmental factors on 24 participants aged 18–30. The results showed that the isolation environment significantly suppressed aggressive emotions (hostility scores decreased by 10%, p = 0.019) and markedly reduced positive emotions (F = 4.327, p = 0.02), while feelings of depression, anxiety, and social loneliness increased by 14%, 21%, and 19%, respectively. In terms of Behavioral performance, the accuracy rate of the 2-back task decreased by 13%, and persistent errors in the WCST task increased by 20% in the early stage and decreased by 10% in the later stage, accompanied by a significant shortening of reaction time. At the physiological level, cortisol levels increased during the initial phase and declined in some participants after adaptation. EEG data revealed significant changes in the amplitudes of the prefrontal N2 and P3 waves as well as in high α-band power (p < 0.05). This study provides empirical data and theoretical support for the mental health management and intervention of relative personnel.

Keywords: Confined And Small-space Environment, Emotion, Behavioral Performance, Electroencephalogram (EEG)

DOI: 10.54941/ahfe1007402