Psychology

Evidence for conceptual semantics is well established in monkeys, however this basis of human language is less evident in the great apes. In order to study semantic communications in chimpanzees, I analyzed alarm calls produced towards a blimp as it was flying overhead. I then replayed a set of these alarm calls to the chimps on a different day. The chimps appeared to act in a manner consistent with the presence of the blimp. The calls they produced in response to the playback stimuli were nearly identical to the calls that were produced during the actual flyover. Though the data collected were not sufficient to support a definitive claim, it does appear that the chimpanzees of the study have a meaning-laden vocalization for the aerial stimuli. Whether this call is specific to the blimp or generalizable to other aerial threats is yet to be determined.

This dissertation focuses on using one tangible component of filicide, the method or weapon used by a parent to kill a child, as a means by which to understand parental psychology. An evolutionary psychological perspective (e.g., Buss, 2004; Bjorklund & Pellegrini, 2002; Daly & Wilson, 1988; Tooby & Cosmides, 1992) can provide insight into our understanding of filicide. Questions that have not been asked by previous researchers may come to the fore by using an evolutionary perspective as a guide for investigating filicide and its surrounding circumstances and contexts. I present the results of three empirical studies using archival data on filicides recorded in Chicago, Illinois. In Study 1, I present the results of an investigation of parental psychological differences evidenced by the methods of filicide, for filicides recorded between 1965 and 1994. The key results of Study 1 are: (a) while overall (i.e., non-genetic and genetic parents combined), beating was the method of filicide used most often, the percentage of filicides committed by non-genetic parents by beating significantly exceeded the percentage of filicides committed by genetic parents; (b) in contrast, the percentage of filicides committed by non-genetic parents by asphyxiation was significantly less than the percentage of filicides committed by genetic parents. In Studies 2A and 2B, I present the results of an investigation using the 1965-1994 dataset as well as a dataset of filicides-suicides recorded between 1870 and 1930. The key results of these two studies indicate that filicide-suicide may be more likely to occur in certain contexts (e.g., multiple-victim killings) and in certain circumstances (e.g., following paternal filicide). In the final chapter, I discuss the key findings, identify limitations of the current research, and present several future directions for research.

Evolutionary psychology offers a framework for investigating the design of evolved information-processing mechanisms that motivate costly behaviors such as men's partner-directed violence. The current research investigated predictors of and individual differences in men's intimate- partner-directed violence from an evolutionary psychological perspective. The problem of paternity uncertainty is hypothesized to have selected for the emotion of male sexual jealousy, which in turn motivates men's nonviolent and violent mate-retention behaviors. Study 1 documented a hierarchy of behaviors initiated with men's suspicions of partner infidelity leading to men's engagement in frequent non-violent mate-retention behaviors, ending in men's partner-directed violence. Study 2 documented an interaction between men's personality traits and the context of perceived partner infidelity risk to predict men's perpetration of violence. Finally, Study 3 extended Studies 1 and 2 by building a causal cascade model that captures the hierarchy of adaptive behaviors in order of: (1) men's childhood experiences with their parents' parental effort, (2) men's adaptive life history strategies and behavioral self-regulation, (3) men's perceptions of partner infidelity risk, and (4) men's non-violent mate retention behaviors, conclusively predicting men's perpetration of violence in intimate relationships.

A literary text is a means for critics to analyze societal influence on the author, and both fashion and body modification serve this same function because they are legible texts with which to interpret the psychological motivations of the wearer in the cultural context in which he or she lives. Fashion theorists such as Roland Barthes and J.C. Flugel have detailed the reasons that they believe dress evolves throughout time, and the following thesis applies their theories to Melville's first novel Typee. In the first chapter, entitled, "Moral Fibers: Dress as the Extension of Self," much emphasis is given to archetypes of dress such as the veil, the corset and military uniforms in the Orient and the Occident. The second chapter, "Cut From the Same Cloth: Body Modification as Semiotic Modality," discusses ritualistic tattooing as a mode of literary expression.

In Ford Madox Ford's 1915 novel The Good Soldier, John Dowell comments "I had never sounded the depths of an English heart," as he painstakingly reconstructs his "extreme intimacy" with his late wife and their two closest friends. Throughout his narrative, Dowell approaches the limits of language, struggling to connect with lost companions by bringing language into scenes of miscommunication and silence. By translating emotional impasses and wordless exchanges from memory into narrative, Dowell seems to make these wordless interactions wordful. Ludwig Wittgenstein's investigation into "private language" helps elucidate Dowell's realization that he cannot fill wordlessness with words to reconstruct his memories. If Dowell can't fill wordlessness with words, his failure to "sound the depths of an English heart" isn't a failure at all, but rather an exposition on "private language" as public language, demonstrating that misunderstandings can be our best attempts at understanding each other.