Preprints (not yet peer-reviewed)

133 downloads
348 views

In a recent paper, Beall, Hofer, and Schaller (2016) use observational time series data to test the hypothesis that the 2014 Ebola outbreak influenced the 2014 U.S. Federal Elections. They find substantial associations between online search volume for Ebola and...

["Anthropology","Evolutionary Studies","Psychiatry and Psychology","Statistics"]
doi:10.7287/peerj.preprints.2165v2
86 downloads
400 views

Paternity uncertainty seems to have shaped humans' differential investment in kin. I examined sex differences in communication among nuclear kin to expand inquiry on this matter and address some methodological limitations in prior work. I analyzed data from national...

["Anthropology","Evolutionary Studies","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.647v2
61 downloads
386 views

Over the past 20 years, the study of personality has blossomed within primatology. Rating inventories have been extensively used across species to identify personality factor structures for different species. Chimpanzees share a common six-factor structure, composed...

["Animal Behavior","Evolutionary Studies","Zoology","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.1916v2
60 downloads
283 views

Aim: The etiology of pregnancy denial remains poorly understood. Neither necessary nor sufficient conditions can be synthesized from the risk factors identified from psychological analyses. In accordance with clinical observations, we aim to explain denial of pregnancy...

["Evolutionary Studies","Gynecology and Obstetrics","Psychiatry and Psychology","Women's Health","Legal Issues"]
doi:10.7287/peerj.preprints.1853v1
155 downloads
196 views

Aim: A woman in denial of pregnancy is pregnant but remains unaware of her gravid state. In the case of a false pregnancy; the woman is not pregnant but believes she is and presents signs and symptoms of pregnancy. These syndromes correspond to opposite contradictions...

["Evolutionary Studies","Gynecology and Obstetrics","Psychiatry and Psychology","Women's Health"]
doi:10.7287/peerj.preprints.1761v1
284 downloads
247 views

From etiologic, clinical or public health perspectives, differences in psychosocial stress responses remain a huge scientific and medical challenge. We address the customization of psychosocial stress responses in humans by considering our dual character of independent...

["Evolutionary Studies","Epidemiology","Psychiatry and Psychology","Public Health"]
doi:10.7287/peerj.preprints.1116v1
77 downloads
274 views

Background: A study by White et al. found that population disease burden predicted preference for attractive politicians in U.S. congressional elections. Aim: We aimed to replicate this finding using data from the United Kingdom. Method: We regressed rated sexiness...

["Evolutionary Studies","Psychiatry and Psychology","Public Health"]
doi:10.7287/peerj.preprints.804v1
69 downloads
185 views

Many species employ conditional strategies for reproduction or survival. In other words, each individual “chooses” one of two or more possible phenotypes to maximize survival or reproductive advantage given specific ecological niche conditions (e.g., Moran, 1992)....

["Evolutionary Studies","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.347v1
208 downloads
515 views

Background. Parental absences in childhood are often associated with accelerated reproductive maturity in humans. These results are counterintuitive for evolutionary social scientists because reductions in parental investment should be detrimental for offspring,...

["Animal Behavior","Anthropology","Developmental Biology","Evolutionary Studies","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.345v1
548 downloads
514 views

Large-scale human groups cannot rely on shared genetic interests or dyadic reciprocity to ensure social cohesion as genetic similarity is low and indirect reciprocity is rife; nevertheless, such societies continue to cohere, due to the evolution of novel regulatory...

["Anthropology","Evolutionary Studies","Psychiatry and Psychology","Ethical Issues"]
doi:10.7287/peerj.preprints.321v1
304 downloads
585 views

Socioeconomic gradients in health behaviour are pervasive and well documented. Yet, there is little consensus on their causes. Behavioural ecological theory predicts that, if people of lower socioeconomic position (SEP) perceive greater personal extrinsic mortality...

["Evolutionary Studies","Psychiatry and Psychology","Public health"]
doi:10.7287/peerj.preprints.29v2
636 downloads
459 views

Many studies have shown that adverse experience in early life is associated with accelerated reproductive timing in humans. There are two different classes of adaptive explanation for such associations. Both can be seen as predictive adaptive responses (PARs)....

["Anthropology","Developmental Biology","Evolutionary Studies","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.23v1
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