According to the American Psychological Association,
"Literature reviews . . . are critical evaluations of material that has already been published. . . . By organizing, integrating, and analyzing previously published material, authors of literature reviews consider the progress of research toward clarifying a problem.
In a sense, literature reviews are tutorials, in that authors
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American Psychological Association. (2010). Publication manual of the American Psychological Association. (6th ed.). https://doi.org/10.1037/0000165-000
Below are three ways to find them. Because these articles are relatively scarce, you may need to try more than one. Also, consider searching for broader, rather than narrower concepts.
Psychology Database [A ProQuest database of articles from psychology journals]
MegaSearch This is for the NEW version of MegaSearch, which searches multiple databases, including those above.