Psychology Commons^™

Dose-Related Sex Differences In The Establishment Of Conditioned Disgust (Anticipatory Nausea), And The Effect Of Peripubertal And Adult Immune System Stimulation With The Endotoxin Lipopolysaccharide (Lps) On Learning And Memory In The Rat, Caylen J. Cloutier

Electronic Thesis and Dissertation Repository

This thesis examined sex differences in the establishment of lithium chloride (LiCl) – induced conditioned disgust behavior (anticipatory nausea) to a distinct context, as well as, the establishment of conditioned place avoidance (CPA) using rodent models. Also examined were potential sex differences in response to treatment with the bacterial endotoxin, lipopolysaccharide (LPS), and its effect on learning and memory. In Chapter 2, male and female naïve Long-Evans rats were injected (intraperitoneally; i.p.) with either 200 µg/kg LPS or 0.9% (NaCl), 90 minutes prior to i.p. injections of either 128 mg/kg LiCl or 0.9% NaCl, and immediately placed into a distinctive …

Assessing The Impact Of Emotion In Dual Pathway Models Of Sensory Processing., James H. Kryklywy

Electronic Thesis and Dissertation Repository

In our daily environment, we are constantly encountering an endless stream of information which we must be able to sort and prioritize. Some of the features that influence this are the emotional nature of stimuli and the emotional context of events. Emotional information is often given preferential access to neurocognitive resources, including within sensory processing systems. Interestingly, both auditory and visual systems are divided into dual processing streams; a ventral object identity/perception stream and a dorsal object location/action stream. While effects of emotion on the ventral streams are relatively well defined, its effect on dorsal stream processes remains unclear.

The …

Social Factors Modulate Toxin (Licl)-Induced Conditioned Disgust Responses In Male Rats, Nathalie Boulet

Electronic Thesis and Dissertation Repository

Rats, which are a non-emetic species, display conditioned disgust responses when re-exposed to a context previously associated with sickness. These conditioned disgust responses can be used to model anticipatory nausea in humans, a growing problem faced by numerous chemotherapy patients. This thesis found that social factors, in addition to contextual factors, can play a role in the expression of toxin (LiCl)-induced conditioned disgust in rats. The results show that a familiar, but not unfamiliar, social partner can serve as a cue for the display of conditioned gaping. Further, a variety of sensory cues may play a role in the development …

Madness In The Media: Understanding How People With Lived Experience Interpret Newspaper Headlines, Da Qing Wang

Electronic Thesis and Dissertation Repository

There is research on media representations of mental health that suggests there is a tendency to portray mental health as problematic and those who are affected by mental illness as dangerous. It is evident there has been an increase in anti-stigma media campaigns. However, the effects of these efforts on beliefs held by members of the public has been mixed. What is most surprising from the literature is a lack of research about how people who have personal experience with mental illness interpret media messages. Individuals with and without lived experience participated in a structured conceptualization process known as concept …

The Mental Number Line In Domestic Chicks, Samantha Noyek

Undergraduate Honors Theses

The estimation of number by humans shows evidence for a mental number line in which magnitude increases from left to right. Rugani, Vallortigara, Priftis, and Regolin (2015) recently reported a similar mental number line in domestic chicks. This is an unexpected result given the role of language and culture in the human mental number line. Animals do not possess language or arithmetic concepts like the mental number line. Because the results reported by Rugani et al. (2015) seem improbable from this perspective, my study sought to determine whether the observations of Rugani et al. (2015) occur reliably. I tested for …