When alcohol is applied to wooden surfaces, the amount and composition of released substances and secondary products influence the perceived air environment. This study aimed to determine the effects of applying alcohol to indoor wood surfaces on volatile organic compounds emissions and perceived air quality.The perceived air quality in the room deteriorated and the odor rating decreased when cleaning work was performed indoors with 130 mL/m 2 of alcohol applied to unpainted wood interior and furniture surfaces.Furthermore, the airborne concentration of acetaldehyde was detected more than the indoor guideline values.
This study examined the occupants' psychological response to rooms with windows and potted plants and their relation to occupants' eye movement.Twenty-four students performed tasks under six experimental conditions that combined two window conditions and three plant conditions. The coexistence of windows and plants on desks most improved room impressions and was associated with the highest ratings in ease of relaxing and ease of creative activity. In addition, the gaze analysis showed the impression of the space with windows and plants related to the characteristics of eye movements in terms of visual exploration, number of fixations, and average fixation durations.
In Japan, intermittent air conditioning in living rooms is a common occurrence, and the thermal environment in other rooms is generally cold. Thus, it is necessary to provide a comfortable thermal environment for "Hiesho". This study aimed to clarify the effects of the heating system on the physiological and psychological responses of "Hiesho" when moving between rooms. The physiological and psychological responses were examined by conducting experiments under five different conditions. The results thus obtained showed that even "Hiesho" feel less cold when floor heating is running in the living room and foot heating is running in other rooms.
Plants improve indoor environmental quality as a visual factor and enhance occupants' overall well‐being. However, research on the mechanisms by which plants improve human cognitive function is limited. This study examined the characteristics of eye movement while viewing indoor plants and their relationship with the cognitive benefits of plants. Thirty students performed cognitive tasks in four desktop conditions: no objects, real plants, artificial plants, and books. Eye movements while viewing plants during rest times in the reading span task (RST), which requires working memory, were characterized by a lower number of fixations, frequent dispersion of fixation points, and a higher number of blinks. Females showed higher RST scores under the real plant condition than under the no‐object condition. These results are consistent with the assumption that plants require lower cognitive effort and better restoration of attention capacity. In addition, in the real plant condition, females showed higher RST scores than males, and only females showed higher creativity scores than those in other conditions. Therefore, gender differences in the cognitive benefits of plants have been suggested. This study provides new insights into the effects of indoor plants on occupants' cognitive functions by quantifying visual perception processes using eye‐tracking technology.
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