Image or Information? Examining the Nature and Impact of Visualization Perceptual Classification

Area of Science:

• Cognitive Psychology
• Information Visualization
• Human-Computer Interaction

Background:

• Understanding how users internalize visualizations is crucial for effective data communication.
• Visualizations can be perceived as either aesthetic images or informative data representations.
• Design elements significantly influence user perception and memory encoding of visualizations.

Purpose of the Study:

• To investigate whether people internalize visualizations as images or information.
• To explore how design elements influence this image/information perception.
• To examine the impact of internalization on memory retrieval and communication effectiveness.

Main Methods:

• Annotated 500 visualizations and surveyed 250 online participants on image/information perception.
• Conducted a free recall task with 101 participants to assess memory encoding and retrieval.
• Analyzed the influence of design elements (e.g., axes, annotations) and participant demographics on perception and recall.

Main Results:

• Image-rated visualizations were perceived as more aesthetically pleasing but less effective for conveying trends.
• Information-rated visualizations, particularly those with axes and annotations, were better recalled for specific details.
• Older participants showed different response patterns, and a dissociation exists between aesthetic pleasure and perceived ease of use.

Conclusions:

• Visualization design choices influence whether they are internalized as images or information, affecting their communicative utility.
• Informative visualizations enhance analytical thinking and trend recall, while image-like visualizations prioritize emotional response.
• Designers must balance aesthetic appeal with clarity to optimize visualization goals for data comprehension and user engagement.