Psychology Commons^™

Strength In A Pinch: Sex Differences In Detection Of And Responses To Threats, Lorena Mesquita Ragonesi

Honors Theses

Handgrip strength is a sexually dimorphic marker of muscle activation and force production. Males consistently demonstrate greater baseline maximal handgrip strength than females. Various factors can influence an individual’s handgrip strength; interestingly, threat detection can increase handgrip strength. Recently, Kawakami et al. (2018) reported that mortality salience increases handgrip strength in men, but not in women. To explain this finding, they argued that physical strength is a more salient goal for men than women, whereas women should strive for beauty as a strategy to avoid harm. While they did find this interesting sex difference in their study, we had concerns …

The Project That Claire, Uh I Mean The Student Completed: Relative Clauses And Repair Disfluencies, Claire O’Shaughnessy

Honors Theses

Several areas of psycholinguistics focus on the role of memory in language processing. Two of these areas are repair disfluencies and complex syntactic structures; however, these two topics have traditionally been investigated completely separately from one another. The current experiment combines these two topics by presenting listeners with spoken sentences containing subject-extracted relative clauses (SRCs) and object-extracted relative clauses (ORCs) in which the semantic similarity between the critical noun phrases (NPs) was manipulated. In addition, the sentences could be spoken fluently, or there could be a repair disfluency in which the reparandum contained information that would be potentially helpful in …

Barriers To Care, Depressive Symptoms, And Moderating Factors Among Patients With Esrd, Amarachukwu O. Nwangwu

Honors Theses

End-Stage Renal Disease (ESRD) is the fifth and final stage of Chronic Kidney Disease (CKD) and has been reported to have the highest prevalence rate in the United States, with about 2,242 cases per million in the total population in 2017 (Johansen et al., 2021). Current studies document a high prevalence of depression among patients with ESRD which may lead to increased mortality (Shirazian et al., 2017). Additionally, barriers in access to care, which may be understood as the barriers that prevent individuals from seeking mental health services, has been linked to increased levels of undertreatment (Clement et al., 2012). …

What Does “Avoidance Mode” Feel Like? The Association Between Avoidance Awareness And Negative Affect In The Moment, Mamie Ziegler

Honors Theses

For students in an academic setting, task avoidance is a common behavioral strategy used to cope with the unpleasant emotions associated with schoolwork and completing assignments. However, when this form of behavioral avoidance becomes a pattern, it has the potential to lead to negative long-term consequences–such as worse academic outcomes and increased stress. To counteract maladaptive behaviors such as task avoidance, a certain level of self-awareness of such behaviors may be necessary–even if this awareness leads to more negative emotions at first. To analyze the relationship between student task avoidance and emotions, the following study utilizes ecological momentary assessment (EMA) …

Sex Differences In Lateral Hypothalamic Extracellular Glucose Concentrations During Cumulative Dosing Of Methamphetamine In Rats, Joshua A. Jolton

Honors Theses

The present study experimentally investigated sex differences in lateral hypothalamic glucose concentrations following cumulative dosing of methamphetamine. Male (n=17) and female (n=11) rats were surgically implanted with enzyme-based glucose biosensors in the lateral hypothalamus. Rats then received a saline injection followed by four methamphetamine doses (0.025 mg/kg, 0.05 mg/kg, 0.1 mg/kg, and 0.2 mg/kg) spaced 55 minutes apart. We found that while there was a general decrease in glucose baseline throughout the study for both sexes, the magnitude of the decrease was significantly greater in females compared to males. On a rapid timescale, fixed sex effects existed at the lower …

Double Trouble: The Development And Use Of A Novel Spatial Memory Task To Study Depression In A Female Rodent Model, Ekaterina L. Koelliker

Honors Theses

Preclinical rodent models of depression are important for improving our understanding of the behavioral and neurobiological implications of the disorder. However, the current behavioral assays used to assess depressive symptoms in rodents have substantial shortcomings; they are basic, test animals individually, and do not evaluate animals for extended periods. The primary goals of the present study, which was divided into two experiments, were to develop a novel task that could be used to study spatial memory and to apply the task to rodent models of depression. Both experiments used a circular arena with 10 identical jars to analyze the spatial …

Enhancing The Rewarding Effects And Subsequent Self-Administration Of Nicotine Through Appetitive Interoceptive Conditioning, Allissa Flynn

Honors Theses

Nicotine is commonly considered to be the primary addictive constituent in tobacco products. Therefore, research focused on nicotine and its effects is necessary for understanding nicotine dependency and in developing potential cessation treatments. Research has confirmed the relevance of learning processes associated with nicotine and their influence on the development of addiction. Conditioning involving interoceptive stimuli is increasingly cited as playing a role in many diseases, psychopathologies, and drug addiction. The internal stimulus effects of nicotine can form associations with other reinforcing stimuli through a process of Pavlovian conditioning where nicotine is the conditioned stimulus. In this way, nicotine acquires …

Assessing A Two-Hit Model Of Schizophrenia: Prenatal Choline Deficiency And Induced Hypofunction Of Nmda Receptors In Male And Female Long Evans Rats, Samuel Gray, Samuel W. Gray

Honors Theses

Choline is an essential dietary nutrient essential to the development and function of the central nervous system. Prenatal choline deficiency alters hippocampal development as well as acetylcholine metabolism, leading to cognitive impairments and attentional and sensory processing deficits into adulthood. MK-801 is an NMDA receptor antagonist frequently used in rodent models of neuropsychiatric conditions, particularly schizophrenia. Acutely and sub- chronically, it causes hyperlocomotion and social withdrawal. One primary goal of the present study were to investigate prenatal choline deficiency induces a biological vulnerability to the motor deficits, anhedonia, and social impairment precipitated by low-dose sub-chronic MK-801 administration in adulthood. Another …

Mental Disorders As Brain Disorders: The Impact On Stigma Of Neuroscience-Based Mental Health Education, Katherine Tighe

Honors Theses

Stigmatization of mental illness is undoubtedly detrimental to those with mental health concerns as it limits employment, self-esteem and social support (Markowitz, 1998). In effort to combat the issue of stigma, previous research has evaluated the effectiveness of education as a method to reduce stigma in a college sample; finding that peer-led presentations are effective in reducing stigma (Kosyluk et al., 2016). The current study sought to evaluate the effectiveness of neuroscience-oriented presentation for reducing the stigma of mental illness among college students. Researchers asked 53 Union College students to complete seven-item Social Distance Scale (SDS; Penn et al., 1994) …

Effects Of Acute Stress And Ethanol Consumption On Il-1Β In Female Long Evans Rats: A Pilot Study, Kristin R. Creel

Honors Theses

Background: Acute stress elicits many physiological, behavioral, and neurological responses, and many studies have aimed to better our understanding of these responses and their effects. However, a majority of preclinical studies have used male test subjects, despite growing evidence that males and females have different responses to acute and chronic stressors. This study thus aims to evaluate the ability of three different acute stressors to cause a physiological stress response in adult and adolescent female subjects.

Methods: In this preliminary investigation, Female Long Evans rats (N=12) underwent three acute stressors over the course of three consecutive days. In order, these …