Hopefully it will explain a lot more than that. Too many details that are not explained in an abstract. Abstracts are of limited value if they are not attached to a full research report. Nature and justification for the analytical strategy are not clear, including how the Bonferroni correction was computed (it seems incorrect). Assessment of both participants' and experimenters' ability to "break the blind".
But I thought about posting a list of questions that the abstract brings to mind, but suffice to say it gives selected results with insufficient info to interpret them.