That doesn’t seem to be the case based on the study. And normal for one thing, such as paragraphs of prose, might not translate to another thing, such as a sequence of words in a line of code.
The study does not say that camelCase is unequivocally as easy, or easier, to read.
Selecting the correct identifier from a list of 2-3 words (expandAliasTable, expandAliasTitle, etc.) is a wholly different exercise.