This study explores how varying levels of biophilic implementation can influence emotional and behavioral responses within residential interiors. A total of 150 complete survey responses were collected from participants who viewed digital images of an interior living space that displayed varying amounts of indoor plants (control, moderate, and intense). Participants provided self-reported responses regarding their emotions (pleasure and arousal), perceived restorativeness, satisfaction, and willingness to stay. Results showed that perceived levels of pleasure, restorativeness, satisfaction, and willingness to stay all increased with levels of greenery. Arousal peaked at the moderate level of greenery which suggests there is a threshold that is preferred by occupants. These findings support current literature on biophilic design and related theories such as the pleasure & arousal framework and attention restoration theory, and provide the opportunity to further understand the effects of biophilic practices on users’ wellbeing and spatial preferences in residential environments.
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