Steven C. Hertler (2016)
Abstract
Size at birth, growth rate, age at sexual maturity,
number and size of offspring, and longevity are among the
variables studied in life history evolution, a mid-level branch
of evolutionary biology. Long-lived, slow maturing, and highly
encephalized Homo sapiens, though skewed as a group
towards the very slow end of the spectrum, nevertheless show
some life history variation; variation which may relate to, and
to some extent explain, personality variation. When applied to
extant personality disorders, the risk-taking, boldness, and impulsivity
of psychopathy is explained as a fast life history
strategy. Herein, it is argued that the highly heritable
obsessive-compulsive personality disorder (OCPD), opposite
psychopathy, is a slow life history strategy. Both OCPD and
slow life history strategists exhibit anxiety and harm avoidance,
risk and loss aversion, future-oriented thought and time
urgency, delayed gratification, and conscientious labor and
fidelity. In addition to a host of compelling correlations, the
preponderance of intrinsic over extrinsic mortality that explains
the evolution of slow life histories is precisely that
which has been described in an ecological etiology that explains
OCPD as a product of post-migration evolution from
Africa into Eurasia.
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