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Early rearing experience, hypothalamic-pituitary-adrenal (HPA) activity, and serotonin transporter genotype influences on the development of anxiety in infant rhesus monkeys (Macaca mulatta) /Dettmer, Amanda M., January 2009 (has links)
Thesis (Ph. D.)--University of Massachusetts Amherst, 2009. / Open access. Includes bibliographical references (p. 89-87). Print copy also available.
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Determinants of Distractibility in the Rhesus MacaqueEbitz, Robert B. January 2013 (has links)
<p>The visual world is full of potentially important information, but only a subset of the world can be evaluated at any time. An essential function of the central nervous system is to rapidly and adaptively select which stimuli warrant attention. Much of the time, attention is directed towards stimuli that are relevant for current goals. However, things that have proven important in an organisms' personal or evolutionary past effectively compete with goal-relevant targets for attention. In humans, one example of this attentional superset is faces: faces attract attention even when they are in competition with immediate goals. Using a combination of behavioral, pharmacological, and electrophysiological techniques in the rhesus macaque, I investigated the physiological, neurobiological, and evolutionary determinants of the attentional capture of faces. First, I show that the prioritization of faces is evolutionarily conserved in primates. Face distractors also capture attention in rhesus macaques, a species of old world monkey, successfully competing with task goals for limited attentional resources. Importantly, the same classes of faces have the greatest attentional effects in both monkeys and humans. Further, I describe behavioral evidence that subcortical systems contribute to the attentional salience of faces in this species, proving an initial characterization of the neural mechanisms that may mediate this effect. Next, I examine the interaction between pupil size and vigilance for faces. A focal increase in luminance has long been known to provoke pupil constriction, but here I show that the pupil response to a flashed distractor is proportional to the allocation of attention to that image. Pupil constriction may provide a novel implicit metric of stimulus attention. In particular, face images provoked greater pupil constriction than non-face images. Moreover, I also find that baseline pupil size is a strong predictor of distractor interference, suggesting that arousal may modulate social vigilance. Therefore, I next examined the activity of single neurons within dorsal anterior cingulate cortex (dACC), a region implicated in task performance across a wide variety of tasks, but which also has strong connections to subcortical neuromodulatory centers responsible for regulating arousal. I find that the dACC discriminates between social and nonsocial distractors, scales with distractor attention, and predicts adjustments in arousal and vigilance state on upcoming trials. This is consistent with a model in which dACC supports task performance through regulating arousal. Finally, I turn to oxytocin (OT), a neuromodulatory hormone released during affiliative social interactions that is also implicated in regulating arousal. Though typically thought to generally enhance social attention, I report multiple circumstances in which OT suppresses, rather than enhances, vigilance for faces. This suggests a mechanism through which affiliative social interactions can reduce social vigilance, permitting more relaxed social interactions. Together, these results highlight an evolutionarily conserved neural circuit important for the adaptive, contextual modulation of reflexive face attention, a behavior that is compromised in both anxiety disorders and autism.</p> / Dissertation
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The effects of postural changes on condylar growth and remodeling in juvenile rhesus monkeys a thesis submitted in partial fulfillment ... Master of Science in Orthodontics ... /Walton, Mary H. G. January 1992 (has links)
Thesis (M.S.)--University of Michigan, 1992.
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Partial reinforcement and two fuctions of reward and secondary reinforcement in discrimination learning set in the monkeyBowman, Robert Edward. January 1900 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1958. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (p. 92-94).
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Oddity learning set and its relation to discrimination learning setLevinson, Billey, January 1958 (has links)
Thesis (Ph. D.)--University of Wisconsin, 1958. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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Successive acquisitions and extinctions of bar-pressing the effects of differential rearing in rhesus monkeys /Gluck, John Paul, January 1970 (has links)
Thesis (M.A.)--University of Wisconsin--Madison, 1970. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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The effects of twinship on the interactions between rhesus monkey mothers and infantsDeets, Allyn C. January 1969 (has links)
Thesis (M.A.)--University of Wisconsin--Madison, 1969. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (p. 138-144).
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The effect of fornix section on learned and social behaviors in rhesus monkeysCadell, Theodore Ernest, January 1963 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1963. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 149-156).
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An operant analysis of the effects of differental rearing experiences in rhesus monkeysGluck, John Paul. January 1971 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1971. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 68-76).
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Problem solving behavior of monkeys as a function of work variablesDavis, Roger T. January 1953 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1953. / Typescript. Vita. Includes bibliographical references (leaves [86]-88).
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