Humans lie as often as 2 or 3 times in a ten minute conversation. Why did we evolve to lie and what might it tell us about our species?
Cooperation Creates Selection For Tactical Deception
“Conditional social behaviours such as partner choice and reciprocity are held to be key mechanisms facilitating the evolution of cooperation, particularly in humans. Although how these mechanisms select for cooperation has been explored extensively, their potential to select simultaneously for complex cheating strategies has been largely overlooked.”
The Evolution Of Lying
“Many species – most notably our own – have evolved quite extraordinary capacities to cooperate. We might take cooperation as an obvious facet of life, but long-term cooperative gain requires a willingness to put aside narrow self-interest in the short term. And that doesn’t evolve easily. Cooperation makes it possible for some individuals to cheat, prospering off the cooperative efforts of others. Cooperate too readily and you might get taken for a ride. Cooperate only grudgingly and you don’t reap the benefits of working together.”
The Role Of Prefrontal Cortex In Psychopathy
“Psychopathy is a personality disorder characterized by remorseless and impulsive antisocial behavior. Given the significant societal costs of the recidivistic criminal activity associated with the disorder, there is a pressing need for more effective treatment strategies, and hence, a better understanding of the psychobiological mechanisms underlying the disorder. The prefrontal cortex (PFC) is likely to play an important role in psychopathy. In particular, the ventromedial and anterior cingulate sectors of PFC are theorized to mediate a number of social and affective decision-making functions that appear to be disrupted in psychopathy.”
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