Abstract
In recent decades, the impact of sleep quality in cognitive performance has attracted more attention. However,
objective variables (including actigraphy and electroencephalogram) are still utilized infrequently. The purpose of this study was to examine the relationship between objective sleep quality variable (viz. sleep duration) and brain response in healthy male young students. Actigraphy was used to determine the sleep duration. Within brain response, we tested event related potential P300 to the respondents. Pearson's correlation analysis was used to conduct the correlation analysis. In the summer,we found that sleep duration of Indonesian students was shorter than that of Japanese students. Due to shorter sleep duration in summer, Indonesian's P300 potential was lower and its P300 latency was longer than that of Japanese. In conclusion, we demonstrated that sleep duration is associated with P300 latency in the domain brain response.