Determination of the effects of visual and auditory stimuli on spatial perception in enclosed public spaces using fuzzy logic

Advancements in information technologies, along with cultural and social changes, have made the interaction between music and space more complex. Consequently, understanding the potential influence of experience and perception concepts on spatial design has become increasingly important. The idea that individuals have different emotional experiences under the influence of music in enclosed public spaces where music types with different frequency spectrums are played highlights the need for architects and interior designers to consider music as part of their design decisions. In this context, this thesis examines the spatial perception effects of music, one of the acoustic stimuli in enclosed public spaces, focusing on color and material components. As a result, a fuzzy model is proposed to assist architects and interior designers in their decision making processes. During the experiment, 33 participants were presented with 8 different virtual environments on a computer screen while listening to classical, rock, and Turkish classical music. Participants' reactions to space-music interactions were recorded using an EEG (Electroencephalography) device, yielding data from 33 participants. To increase the dataset, the number of data points was expanded to 150 using a genetic algorithm. Data analysis was conducted using the fuzzy logic algorithm, and the results were validated through the random forest algorithm, yielding an F1 score of 0.95. The findings of the study demonstrate that music types with different frequency spectrums significantly influence individuals' spatial perception, particularly in terms of color and material components of the physical environment. Future studies could further explore the interaction between music and spatial perception by involving larger participant groups, diverse music genres, and additional sensory inputs such as lighting. Moreover, integrating neuroscience and architecture could lead to the development of personalized and user-interactive spatial designs.