This post is a continuation in theme of an earlier post in which I touch on a topic that is important in deception detection- recognizing indicators of truth.
In this article, however, I am going to take a glance at the strategic side of truth-seeking and where it holds an advantage over focusing solely on the many indicators of deception.
Research has shown that under heavy cognitive load (hard thinking or concentration),glucose levels in the brain dramatically decrease, reducing the ability to think in depth. Heavy cognitive load is not realistically sustainable. It is painful and distracting.
To relieve the pain, we resort to intuitive thinking. Intuitive thinking draws upon associative memory. This is significant in this sense.
In an interview situation, if you are concentrating heavily on trying to look for every single indicator of deception, every deceptive word and every inconsistency, you may overtax your capabilities. When our concentration gets too intense, we inevitably fall back on our default judgment, as this is much easier on the brain. It is important to understand that the experienced interviewer and deception detection professional will likely spot the indicators with considerably less effort. It is just as important to understand that any professional investigator worth his salt also understands the goal of the interview is the truth.
In a study of eight judges considering more than 1,100 applications for parole in Israel, it was learned that parole board judges were more likely to grant parole at the start of the day, and after breaks for a morning snack and lunch. These are the times when glucose levels are optimal. The judges awarded parole 65% of the time during these time frames. Each subsequent hearing session tended to bring less chance of getting parole, dropping to 0% on occasions and rising again to the 65% level after the next food break. (1.S. Danziger, J. Levav, L. Avnaim-Pesso. Extraneous factors in judicial decisions. Proceedings of the National Academy of Sciences, 2011; DOI: 10.1073/pnas.1018033108)
While interviews and deception detection need not be as tasking as sitting on a parole board, the results of the study should be of use to interviewers. As truth seekers, we need to be conscious of factors that may affect our ability to be fair and partial. Intense concentration on trying to observe any and all of the seemingly thousands of indicators of deception will likely be taxing, and this will tempt us to resort to associative, or default thinking. This may impair our ability to be fair, and that is unacceptable.
The signs and indicators of truthful people are important to recognize. When these cease, is when you should, and inevitably will, observe indicators of sensitivity or deception. In short, looking for signs of truthfulness may be considerably less taxing mentally. For indicators of truth, I list a few here https://ryanemann.wordpress.com/2014/01/14/want-to-catch-a-liar-look-for-the-truth/