A Boolean map theory of visual attention.
DOI: 10.1037/0033-295x.114.3.599
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Summary
This paper introduces the Boolean Map Theory of visual attention, a framework designed to resolve ambiguities in how observers consciously access and select visual information. The authors distinguish between two distinct processes: selection (the mechanism for choosing what to attend to) and access (the capacity for conscious apprehension). While previous literature, such as feature-integration theory, often conflated these or focused primarily on selection difficulties (e.g., separating targets from distractors), this theory addresses the neglected limitations of access. The central research questions are: What visual contents can be consciously accessed at one moment, and how does voluntary selection govern this access? The theory posits that conscious visual awareness at any given instant corresponds to a single "labeled Boolean map." This map is a spatial representation that partitions the visual field into selected and non-selected regions. The theory is defined by five tenets: obligatory encoding of location, single-feature access, multiple-location access, feature-by-feature selection, and the availability of Boolean operations. Regarding access, the theory claims that an observer can access only one feature value per dimension (e.g., one color) at a time, but this feature value can be associated with multiple spatial locations simultaneously. Regarding selection, the theory proposes two mechanisms for creating a Boolean map: (a) selecting a single feature value in one dimension (e.g., all red objects), or (b) iteratively combining the output of mechanism (a) with a preexisting Boolean map using intersection or union operations. Crucially, selection is always based on one feature value at a time, and no more than one feature value per dimension can be accessed simultaneously. The authors argue that this framework provides a unified interpretation of various attention phenomena, particularly illuminating "attention to structure." For instance, the theory predicts that an observer can apprehend the spatial configuration of multiple objects (e.g., their triangular arrangement) at a glance because this requires only one Boolean map selecting all objects, whereas perceiving the specific colors of those same objects requires sequential access, as only one color can be accessed at a time. This contradicts feature-integration theory, which suggests parallel access to multiple features. The theory also clarifies that metaphors like "spotlight" or "zoom lens" are inadequate because Boolean maps can encompass spatially disconnected regions defined by feature distribution rather than contiguous spatial areas. The significance of this work lies in its formal separation of selection and access constraints, offering a precise data format for conscious visual experience. By defining the limits of simultaneous feature access and the mechanisms of spatial selection, the Boolean Map Theory explains why certain visual configurations are apprehended instantly while others require serial processing. It challenges prevailing assumptions about parallel feature processing and provides a structured account of how top-down control guides visual perception through the creation and manipulation of spatially precise, feature-labeled maps.
Key finding
Conscious visual access is limited to a single feature value per dimension at any given instant, represented as a spatially precise Boolean map that can cover multiple locations.
Methodology
theoretical
Provenance
The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via openalex_abstract on 2026-05-08.
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | — | — | — | 1 | 2026-05-07 |
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| enrich | success | openalex | — | — | 2 | 2026-05-08 |
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| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 2 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 15 | 2026-06-11 |
| verify | success | — | — | — | 2 | 2026-06-10 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.
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