研究目的
To investigate the effects of projected fractal light patterns on visual interest, visual preference, and mood responses in interior spaces, and to determine if viewing distance influences these responses.
研究成果
Fractal light patterns of medium to medium-high complexity (D=1.5-1.7) are significantly more visually interesting and preferred, and they maintain a better balance between relaxation and excitement in mood responses. Viewing distance does not significantly affect these responses. The findings suggest that such patterns can enhance occupants' visual interest and mood in interior spaces, with implications for architectural design, particularly in shading systems and biophilic design.
研究不足
The studies did not include a fractal pattern with D=1.9 due to concerns about participant fatigue. The use of renderings in Study 2 may have muted mood responses compared to direct projections. Environmental factors like room context and light intensity differences from computer screens were not fully controlled, and the absence of windows might affect generalizability.
1:Experimental Design and Method Selection:
Three studies were conducted using a two-alternative forced-choice (2AFC) procedure for visual interest and preference assessments, and Likert-type scales for mood assessments. The studies were based on the fractal fluency theory and aimed to control variables like brightness and pattern complexity.
2:Sample Selection and Data Sources:
Participants were recruited from architecture and interior architecture students at the University of Oregon, with sample sizes of 89, 68, and 32 for Studies 1, 2, and 3 respectively. Data were collected via wireless polling remotes.
3:List of Experimental Equipment and Materials:
Overhead projector (Panasonic PT-DZ6700U), computer for pattern generation, wireless polling remotes (iClicker), lecture room with specific dimensions, and fractal patterns with varying fractal dimensions (D=1.1, 1.3, 1.5, 1.7) and non-fractal patterns (rectangular and striped).
4:1, 3, 5, 7) and non-fractal patterns (rectangular and striped).
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: Patterns were projected on a wall, and participants assessed visual interest, preference, and mood in timed sessions. Studies varied in stimuli (direct projections vs. renderings) and viewing distances.
5:Data Analysis Methods:
Statistical analyses included Wilcoxon signed-rank tests, factor analysis (Principal Components Analysis with Varimax rotation), and ANOVA for comparing groups and patterns.
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