Research
People do not look at images randomly. Fixation selection is shaped by bottom-up visual features such as brightness and color, and by top-down factors such as goals, task relevance, and prior knowledge.
This study compared children, young adults, and older adults to understand how those influences change across development and aging.
Central finding
Viewing behavior changes across age groups: children rely more on visually salient image features, while older adults show different exploratory patterns that can affect task performance.
What was tested
- Children aged 7-9, young adults aged 19-27, and older adults over 72 viewed natural images.
- The study compared fixation selection with bottom-up image features and task performance.
- Memory for image content was used to connect viewing behavior to performance.
Interpretation
Children focused more strongly on visually striking parts of the image. Older adults were less tied to those bottom-up image features, suggesting a shift in viewing strategy.
Exploratory viewing also played different roles across age groups. For children, more exploration reduced reliance on basic visual features. For older adults, more exploration increased that reliance and supported better task performance.
Two forces in viewing behavior
Bottom-up attention
Fixations are pulled toward salient visual features such as brightness, contrast, or color.
Top-down attention
Fixations are guided by task goals, memory demands, expectations, and what the viewer is trying to understand.
Publication details
- Authors: Alper Acik, Adjmal Sarwary, Rafael Schultze-Kraft, Selim Onat, Peter Konig
- Published: 2010-11-25
- Journal: Frontiers in Psychology, 1, 207
- Publisher: Frontiers Research Foundation