The researchers did not decode it with 100% accuracy, so one interpretation is that the unconscious mind says "Instinctively, this seems like the right decision

The researchers did not decode it with 100% accuracy, so one interpretation is that the unconscious mind says "Instinctively, this seems like the right decision," 11 seconds later the conscious mind says either "Oh, yes, I agree with that" or less frequently "Actually I'll do something else", and the researchers are only tracking intuition.