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Pictures and words in visual search.
1Department of Psychology, University of Western Ontario, N6A 3K7, London, Ontario, Canada.
Memory & Cognition
|January 29, 2011
Summary
Searching for visual information is faster using pictures than words. This study suggests that dual-coding theory explains how we process and search for information presented in different formats.
Area of Science:
- Cognitive Psychology
- Human Perception
- Information Processing
Background:
- Understanding how humans search for and retrieve information is crucial in cognitive psychology.
- Previous research has explored the differences in processing visual and verbal stimuli.
- The dual-coding theory proposes that information is processed through both verbal and non-verbal (imaginal) channels.
Purpose of the Study:
- To investigate the effect of stimulus modality (pictures vs. words) on visual search speed.
- To examine how target modality interacts with array modality in visual search tasks.
- To test the applicability of the dual-coding theory to visual search behavior.
Main Methods:
- Participants performed visual search tasks across three experiments.
- Stimuli included line drawings of objects, printed words, photographs of faces, and printed names.
- Search times were recorded for different combinations of target and array item modalities.
Main Results:
- In Experiments I and II, search was faster with pictures than words in the array, irrespective of target modality.
- Picture targets were searched faster than word targets when the array also contained pictures.
- Experiment III showed significantly slower search times when names were targets within an array of faces.
Conclusions:
- Results support the dual-coding theory, indicating that information processed both verbally and imaginally can be accessed in either mode.
- The efficiency of search depends on the cognitive representation and the modality of the search array.
- Task demands, specifically the format of the search array, dictate whether verbal or non-verbal processing is prioritized.
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