One of the key tools available in PsycINFO is the thesaurus. Access it by clicking on "APA Thesaurus of Psychological Index Terms" from the main menu.
![APA thesaurus of psychological terms](https://libapps.s3.amazonaws.com/accounts/12578/images/PsycInfo-thesaurus.png)
These relevant terms, among others, are listed in thesaurus:
- brightness perception
- distance perception
- illumination
- pictorial stimuli
- signal detection (perception)
- visual discrimination
- visual perception
- visual thresholds
- warnings
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- accident prevention
- highway safety
- risk factors
- safety devices
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