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A time-based two-stage model of visual selection: Evidence from standard visual search tasks
Yujie Zheng1, Keyun Xin1, Zhi Li1
1Department of Psychology and Behavioral Sciences, Zhejiang University.
Journal of Experimental Psychology. Human Perception and Performance
|November 3, 2025
Summary
Visual selection operates in two time-based stages: an initial parallel processing stage with stimulus-dependent capacity, followed by a serial stage. This mechanism efficiently manages information processing under limited cognitive resources.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Visual Perception
Background:
- Understanding how the visual system selects information under limited processing capacity is crucial.
- Existing models like Guided Search and attentional window theories offer partial explanations.
Purpose of the Study:
- To investigate the temporal dynamics of visual information selection.
- To reveal a time-constrained mechanism underlying visual search.
Main Methods:
- Three experiments involving color and digit search tasks were conducted.
- Search time and set size were analyzed to identify processing stages.
- Stimulus onset and search delay were manipulated to assess time dependence.
Main Results:
- A bilinear relationship between search time and set size was observed, with a critical kink point around 50-100 ms.
- This time-based transition from parallel to serial processing was consistent across different stimuli.
- The early parallel stage demonstrated stimulus-dependent capacity.
Conclusions:
- Visual selection involves a time-driven transition from parallel to serial processing.
- This two-stage model offers a unified perspective on visual information processing architecture.
- The findings provide new insights into the efficiency of cognitive systems.
