A Holey Perspective on Venn Diagrams.

Area of Science:

• Cognitive Psychology
• Information Visualization
• Human-Computer Interaction

Background:

• Observers form expectations about how visual features map to concepts, known as inferred mappings.
• Previous research identified inferred mappings for colormap data visualizations.
• Venn diagrams present a unique case due to potentially counterintuitive established conventions.

Purpose of the Study:

• To investigate if inferred mappings for colormaps generalize to Venn diagrams.
• To test the "hole hypothesis" regarding the interpretation of non-existence in Venn diagrams.
• To understand the role of perceptual properties in interpreting visual features.

Main Methods:

• Three experiments were conducted to test the "hole hypothesis".
• The study examined how observers interpret shaded regions versus "hole-like" regions in Venn diagrams.
• Perceptual properties of the diagram and its background were analyzed.

Main Results:

• Results supported the "hole hypothesis".
• Observers expect regions appearing as holes to signify non-existence.
• The interpretation of visual features in Venn diagrams is influenced by configural processing.

Conclusions:

• Established conventions for Venn diagrams may be counterintuitive.
• Perceptual properties significantly impact the interpretation of visual features.
• Configural processing is crucial for understanding inferred mappings in information visualizations.