Visual search guidance is best after a short delay
Article, Other literature type
English
OPEN
Schmidt, Joseph
;
Zelinsky, Gregory J.
(2011)
- Publisher: Elsevier BV
-
Journal:
Vision Research,
volume
51,
issue
6,
pages
535-545
(issn: 0042-6989)
-
Related identifiers:
doi: 10.1016/j.visres.2011.01.013
-
Subject:
Ophthalmology | Sensory Systems | Article
Search displays are typically presented immediately after a target cue, but in the real-world, delays often exist between target designation and search. Experiments 1 and 2 asked how search guidance changes with delay. Targets were cued using a picture or text label, each for 3000ms, followed by a delay up to 9000ms before the search display. Search stimuli were realistic objects, and guidance was quantified using multiple eye movement measures. Text-based cues showed a non-significant trend towards greater guidance following any delay relative to a no-delay condition. However, guidance from a pictorial cue increased sharply 300–600 msec after preview offset. Experiment 3 replicated this guidance enhancement using shorter preview durations while equating the time from cue onset to search onset, demonstrating that the guidance benefit is linked to preview offset rather than a more complete encoding of the target. Experiment 4 showed that enhanced guidance persists even with a mask flashed at preview offset, suggesting an explanation other than visual priming. We interpret our findings as evidence for the rapid consolidation of target information into a guiding representation, which attains its maximum effectiveness shortly after preview offset.