Honesty, Dishonesty & Brain Function

The information in this column is intended forstudy, some very interesting results were obtained.
informational purposes only, and does not constituteWhen compared to the control group of volunteers,
medical advice or recommendations by the author.the brain function of the participants who refrained
Please consult with your physician before making anyfrom trying to deceive the investigators showed no
lifestyle or medication changes, or if you have anyevidence of activation of the higher cognitive centers
other concerns regarding your health.of the brain that are known to play a role in
___judgment and moral decision-making. On the other
The related moral issues of honesty and dishonestyhand, the brain function of the volunteers who
have been debated for thousands of years bybehaved dishonestly revealed a completely different
philosophers and theologians, with an abundance ofpattern of activity in the brain's "judgment" centers,
resulting theories about how people ultimately decidein the prefrontal cortex, when compared to the
to confront moral quandaries in their lives. Whilecontrol group of volunteers.
virtually all of us will resort to at least modest acts ofAmong the research participants who displayed
dishonesty from time-to-time, some of us, clearly,evidence of dishonesty, the prefrontal cortex's
are more prone than others to engaging in deceptivejudgment and control centers were activated when
and dishonest behaviors on a more frequent basis.this group engaged in deception related to their coin
While some people, doubtless, engage in repeatedflip predictions. Moreover, the degree of increased
acts of immoral, dishonest, or criminal behavior due tometabolic activity in these decision-making areas of
underlying mental illness or personality disorders, mostthe brain was proportional to the number of times
of us routinely decline opportunities to behavethat each participant engaged in deceptive behavior.
dishonestly in our daily lives. However, some amongA particularly fascinating result of this clinical study
us, including those without recognizable mental healthwas that even when the "dishonest group" of
problems, are somewhat more "morally flexible." Whilevolunteers momentarily refrained from engaging in
the factors that help to determine the moral choicesacts of dishonesty, these same judgment and moral
that we make as individuals are decidedly complexauthority centers in the prefrontal cortex of the brain
and nuanced, neuroscientists and behavioral expertswere still activated.
are using new functional imaging tools to try andWhile the findings of this study cannot answer any
better understand which areas of the brain areof the philosophical, moral, and spiritual questions
activated when we engage in thought processesregarding why some people choose dishonesty over
related to moral decision-making.honesty, the results of this intriguing study provide
Functional MRI, a relatively new and powerful imagingimportant insights into how the moral decision-making
technique, combines exquisitely detailed images ofand judgment centers of the brain may behave
the brain with information regarding increased blooddifferently in people who routinely choose to behave
flow to specific areas of the brain. This melding ofdishonestly (and, particularly when some form of gain
anatomic and metabolic information about the brainis potentially available) when compared to those who
allows scientists to identify discrete areas of theregularly resist such temptations.
brain that are activated while patients or researchThe authors of this study point out two of the
subjects are participating in specific behavioral tasksprevailing theories in cognitive psychology regarding
or thought processes.how humans approach temptation, and regarding our
A new clinical research study from Harvardreadiness to either refrain from or engage in
University, just published in the Proceedings of thedishonest behaviors in hopes of gaining something
National Academy of Sciences, provides a fascinatingvaluable in return. According to the so-called "Grace
new look at how the human brain approaches moralHypothesis," honest behavior results because honest
dilemmas during both "honest" and "dishonest"people do not perceive any temptation to behave
behaviors. In this study, volunteers were confronteddishonestly. A competing theory, the "Will
with opportunities for modest financial gain, whichHypothesis," states that honest behavior results from
could be maximized through dishonest behavior.the active, intentional resistance of perceived
In this study, participants were asked to predict thetemptation to behave dishonestly.
outcome of random, repeated coin flips simulated onThus, the findings of this clinical study would appear
a computer. These research subjects were thento better support the "Grace Hypothesis" for the
compensated according to the number of theirmore honest volunteers, in that the judgment and
correct predictions (i.e., "heads" or "tails"), based uponmoral decision-making centers in the brains of the
self-reporting of the accuracy of their predictions. Avolunteers who behaved honestly were not
"control group" of participants underwent functionalactivated when these participants were offered an
MRI scans too, but they were required to provide allopportunity to increase their compensation by being
of their predictions (i.e., their guesses) of thedishonest. On the other hand, these same "executive
outcome of the simulated coin flips in advance, thusfunction" centers in the prefrontal cortex of the
removing any incentive to behave dishonestly. Theparticipants who were dishonest lit up whether these
remaining research volunteers were allowed topeople were behaving honestly or dishonestly, and
self-report their predictions after they had completedcould therefore suggest that the "Will Hypothesis"
the coin flip exercise, which offered them an obviouswas more applicable to people who are intrinsically
opportunity for cheating. It should also be noted thatmore predisposed to behave dishonestly when they
the maximum available compensation offered wasperceive some potential gain (however small) from
only $75.doing so.
Functional MRI scans of the brain were performed onWhile this study does not resolve the ages-old
all of these research volunteers as they completeddebate regarding what keeps "honest people honest"
these tasks. Not surprisingly, more than a few ofand "dishonest people dishonest," it does offer a
these research volunteers reported predictions thatfascinating window into the divergent brain function
far exceeded the statistical possibility of guessingof people who appear to occupy either category. It
which side of the simulated coin would appear withremains to be discovered, however, why people who
each random coin flip, indicating widespreadare prone to behaving dishonestly do so in the first
dishonesty among these participants.place, when the prevailing norm is virtually every
When the results of the functional MRI scans wereculture and society throughout the world strongly
compared among the different groups within thisfavors honesty over dishonesty.