Where the non-human animal research investigating reproduction-induced cognitive reorganization has focused on neural plasticity and adaptive advantage in response to the demands associated with pregnancy and parenting, human studies have primarily concentrated on pregnancy-induced memory decline. The current review updates Henry and Rendell's 2007 meta-analysis, and examines cognitive reorganization as the result of reproductive experience from an adaptationist perspective. Investigations of pregnancy-induced cognitive change in human females may benefit by focusing on areas, such as social cognition, where a cognitive advantage would serve a protective function, and by extending the study duration beyond pregnancy into the postpartum period.

Protective mechanisms in pregnancy include Nausea and Vomiting in Pregnancy (NVP) (Fessler, 2002;Flaxman and Sherman, 2000), increased sensitivity to health cues (Jones et al., 2005), and increased vigilance to out-group members (Navarette, Fessler, and Eng, 2007). While common perception suggests that pregnancy results in decreased cognitive function, an adaptationist perspective might predict that some aspects of cognition would be enhanced during pregnancy if they help to protect the reproductive investment. We propose that a reallocation of cognitive resources from nonessential to critical areas engenders the cognitive decline observed in some studies. Here, we used a recognition task disguised as a health rating to determine whether pregnancy facilitates face recognition. We found that pregnant women were significantly better at recognizing faces and that this effect was particularly pronounced for own-race male faces. In human evolutionary history, and today, males present a significant threat to females. Thus, enhanced recognition of faces, and especially male faces, during pregnancy may serve a protective function.

This paper argues that the lack of distinction between human and nonhuman animals in the fantastic world of children's literature and film results in distorted representations of intelligence, capabilities, and morality of nonhuman animals. From the perspective of attachment theory, the paper shows how humans internalize and sustain misrepresentations throughout adulthood and how these misrepresentations influence relationships with real animals. An ongoing search for the ideal "Walt Disney dog" of childhood jeopardizes relationships to companion animals. Trying to recreate the fantasy dog by genetic manipulation of a real animal's characteristics results in needless distress for companion animals. Because the companion does not meet expectations engendered by childhood stories, normal dog behaviour-chewing, digging, and barking-may result in relinquishing the dog for adoption and subsequent euthanasia. Shifting to the scientific realm, the paper discusses the on-going debate on the study of animals' humanlike abilities, most salient in ape language programs. In closing, the paper discusses the disservice done to real animals as illusions of childhood and subsequent misunderstandings leave them judged by impossible, anthrocentric standards-which they rarely can fulfill.

No abstract

No abstract