When the LSA component returns results in descending order, the results with the highest correlations (i.e. the highest cosiine similarities) are listed first and the least are listed last.
This option is available for every search type and can be regarded as an easy default mode.
Listings look like this example of the results for a Document-document search for Keynes MS. 21, "The Method of the Work." Click the correlation link to view the chunk pair side by side.