Evidence map›Paper›PMID 28892812›Full record

ArticleJournal of vision2017

One visual search, many memory searches: An eye-tracking investigation of hybrid search.

Trafton Drew, Sage E P Boettcher, Jeremy M Wolfe

Open access · goldAbstract read
In one paragraph

Article in Journal of vision, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.8field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 48 citations in OpenAlex.

  1. Effects of Prior Diagnosis on Second Opinions and Pathologist Viewing Behaviors: Results from a Randomized Trial in Breast Pathology.Medical decision making : an international journal of the Society for Medical Decision Making · 2026
    Trial
  2. Article
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  4. Distractor avoidance and early quitting in visual search.Attention, perception & psychophysics · 2025
    Article
  5. Article
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  7. Categorically distinct subsets allow flexible memory selection in hybrid search.Journal of experimental psychology. Learning, memory, and cognition · 2024
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  10. Review
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  19. Incidental memory following rapid object processing: The role of attention allocation strategies.Journal of experimental psychology. Human perception and performance · 2019
    Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 2 countries.

Trafton DrewUniversity of Utah, Salt Lake City, UT, USA.
Sage E P BoettcherUniversity of Oxford, Oxford, UK.
Jeremy M WolfeBrigham and Women's Hospital, Boston, MA, USA.
Harvard University · USUniversity of Oxford · GBUniversity of Utah · US

Funding

Prevalence effects in visual search: Theoretical and practical implicationsR01EY017001 · NEI · BRIGHAM AND WOMEN'S HOSPITAL · PI Jeremy M Wolfe · 2007 to 2026
$8.2M
NEI NIH HHS R01 EY017001
6 · The paper itself

Abstract

Suppose you go to the supermarket with a shopping list of 10 items held in memory. Your shopping expedition can be seen as a combination of visual search and memory search. This is known as "hybrid search." There is a growing interest in understanding how hybrid search tasks are accomplished. We used eye tracking to examine how manipulating the number of possible targets (the memory set size [MSS]) changes how observers (Os) search. We found that dwell time on each distractor increased with MSS, suggesting a memory search was being executed each time a new distractor was fixated. Meanwhile, although the rate of refixation increased with MSS, it was not nearly enough to suggest a strategy that involves repeatedly searching visual space for subgroups of the target set. These data provide a clear demonstration that hybrid search tasks are carried out via a "one visual search, many memory searches" heuristic in which Os examine items in the visual array once with a very low rate of refixations. For each item selected, Os activate a memory search that produces logarithmic response time increases with increased MSS. Furthermore, the percentage of distractors fixated was strongly modulated by the MSS: More items in the MSS led to a higher percentage of fixated distractors. Searching for more potential targets appears to significantly alter how Os approach the task, ultimately resulting in more eye movements and longer response times.

Indexed as

AdultAttentionEye MovementsFemaleHumansMaleMemory, Short-TermMental RecallReaction TimeVisual Perception

Identifiers

PMID28892812
PMCPMC5596794
OpenAlexW2756314524

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.