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Increment And Decrement Effects In Motion Induced Blindness, Sofia C. Lombardo

Honors Theses and Capstones

Motion induced blindness (MIB) refers to the perceptual disappearance of a stationary stimulus in the presence of a motion mask. The current study investigated the degree to which afterimages affect MIB inhibition when measured as a contrast detection threshold in a modified replication of White et al. (2020). Adult participants (N = 3) with normal or corrected-to-normal eyesight completed a series of target detection tasks while viewing a standard MIB stimulus with the motion mask removed that consisted of increment versus decrement inducer and target components. A univariate ANOVA data analysis procedure revealed a significant afterimage effect (Scheffé p < 0.0253) on contrast detection threshold was found for targets presented at an interstimulus interval of 500 ms. This effect was stronger for decrement targets compared to increment targets in the decrement inducer conditions. Based on a comparison with previous research in which the MIB effect was found to endure across interstimulus intervals up to 15500 ms, the current findings indicate that afterimages do not significantly influence contrast detection thresholds for MIB. Further research is necessary for determining the strength and duration of afterimage effects on contrast detection thresholds in MIB that may be caused by interaction with the motion mask.

Working Alliances: The Implications Of Person-Centered Theory For Student-Teacher Relationships And Learning, Adam Parker Cogbill

Doctoral Dissertations

In this dissertation project, I interview four therapists and four writing teachers to learn if there were any significant similarities in differences in their approaches to dyadic relationships with students and clients. By dyadic, I mean what happens between individuals in a 1-on-1 setting when subjectivities collide. I was guided in my investigation by the core concepts of person-centered theory, which have heavily influenced the work of clinical therapists for the past half-century or more. These concepts are congruence, or whether one’s behaviors and speech match what one is feeling; empathy, the process of entering and becoming familiar with another’s …

Ultrasonic Vocalizations And Stress Resilience: Behavioral And Neurobiological Correlates, Nathaniel P. Stafford

Doctoral Dissertations

When we are exposed to a traumatic or stressful life event, some individuals may develop symptoms of anxiety or depression while others may appear unaffected. In humans and nonhuman organisms, the ability to cope plays a large role in how an organism responds to a stressor, and this coping may be influenced by innate mechanisms. We have identified the use of ultrasonic vocalizations during intermittent swim stress (ISS) to forecast innate behavioral differences in stress reactivity. Vocalizing rats are resilient as they exhibit less cognitive impairment, motivational changes, and fewer anxiety-like behaviors typically observed post-ISS. Resilience should be associated with …

Personal Intelligence And Learning About Personality In Everyday Life, Jayne L. Allen

Doctoral Dissertations

As we encounter other people, we form impressions of and judgments about them. Based on these evaluations, we choose whether we want to interact any further, and if we do, what type of relationship we want to have. Although such choices can have far-reaching consequences, we typically base them on tacit knowledge. Our abilities to reason about our own and others’ personalities—abilities theorized to be part of a personal intelligence (Mayer, 2008)—determine in part the relationship outcomes we experience.

The existence of such an intelligence implies that people have a “database” they consult when making personality-relevant decisions. This raises the …

The Effects Of Encouraging Student-Faculty Interaction On Academic Success, Identity Development, And Student Retention In The First Year Of College, Katerina Karaivanova

Doctoral Dissertations

The study presented in this dissertation was designed to investigate the effects of a brief intervention encouraging student-faculty interaction among college students on their academic achievement, college adjustment and intent to withdraw. Additionally, the effects of identity style on academic achievement, college adjustment, and student-faculty interaction were examined. Two hundred and five first year students participated in a four-part study, measuring the frequency and quality of student-faculty interaction, college adjustment, and identity development at three different time points. Students were randomly assigned to one of three experimental groups; only one group received the advice to meet with faculty outside of …

The Role Of Social Agency In Student Learning, Michael C. Melville

Doctoral Dissertations

Although the pedagogical strategy known as the personalization principle has received considerable support in the laboratory, there is little work examining its generalizability, ecological validity, and potential for statistical mediation and moderation. In 5 experiments, these topics are examined in the laboratory as well as in a real classroom setting. Experiment 1a provides evidence for moderation of the effect of the personalization principle by the learner’s score on the need to belong scale. Experiment 1b shows support for a variable that measures subjective perceptions of the learning material mediating the effect of the personalization principle on learning outcomes. Experiments 2 …

Cellular Coding Properties Of Goal Directed Behavior In The Mediodorsal And Intralaminar Nucleus Of The Rat: Comparisons To Prefrontal Cortex, Rikki Lou Ann Miller

Doctoral Dissertations

The mediodorsal (MD) and rostral intralaminar (IL) nuclei of central thalamus interact with prefrontal cortex (PFC) through multiple pathways to control goal directed behavior. The initial purpose of this dissertation was to characterize cellular coding properties of these nuclei in central thalamus using electrophysiological measures in awake, behaving rats performing a dynamic delayed non-match to position (DNMTP) task. Two major aims were developed. The first of these was based on the strong reciprocal connections between central thalamus and PFC. Therefore, the current data was compared to data previously collected in prefrontal cortex (Onos et al., 2015). The second was that …

Reasons For Revealing And Concealing Interpersonal Trauma, Sidney Bennett

Doctoral Dissertations

Prior research has documented the role that revealing and concealing interpersonal violence has on health outcomes for victims (e.g., Ullman, 2010). The present paper aims to add to the existing research by presenting a new model, The Revealing and Concealing Process Model for Interpersonal Trauma, to describe the process that occurs when victims reveal or conceal interpersonal violence. The second stage of the model (i.e., reasons for revealing/concealing interpersonal violence) was tested by: 1. Creating a measure to assess the reasons for revealing and concealing interpersonal violence and 2. Identifying whether getting goals met for revealing/concealing is related to health …

Using Your Mind To Train Your Body: An Experimental Autobiographical Memory Intervention For Adolescent Physical Activity, Mathew Biondolillo

Doctoral Dissertations

Developmentally, physical activity levels tend to decline from adolescence to early adulthood. Adolescent physical activity programs have been largely ineffective, leading to a call for new low-cost interventions. This study examined the effects of an autobiographical memory intervention on adolescent physical activity. Over six weeks, students (N = 558) in a New England middle school completed questionnaires and were timed weekly in physical education classes while training for a school-wide race. During Week Three, some students were asked to provide a positive motivational physical activity memory and others a control memory. Students indicated their intentions to be physical active, completed …

What Is Self-Potential And How Does It Relate To Personal Intelligence?, Bonnie Ann Barlow

Doctoral Dissertations

Intelligence is an important ability that we use in our everyday lives to understand people, such as choosing the best partner to work with on a project. Personal intelligence is the ability to “reason about personality and its processes, as applied to one’s self and others” (Mayer, Panter & Caruso, 2012). The Test of Personal Intelligence (TOPI) was developed to test this important ability. If the TOPI measures people’s ability to understand their own and other’s personality, as personal intelligence increases so should a person’s level of self-potential. This idea was tested in two studies by conducting correlations between the …

Major Decisions: Personal Intelligence And Students' Reasoning About College Majors, Kateryna Sylaska

Doctoral Dissertations

Researchers and universities have devoted substantial resources to understanding college students’ experiences in college. One gap in the literature surrounds understanding students’ major selection process. In the current series of studies, I utilized previous research and semi-structured interviews to create the Students’ Reasoning about their Major Survey (RAMS). I conducted exploratory and confirmatory factor analyses on the items in two distinct samples and found a general factor (Satisfaction with the Major) and seven secondary factors (Balance and Flexibility, Prestige, Interpersonal Similarity, Effort and Difficulty, Interest, Perceived Competence, and Decision Aversion). I hypothesized that the RAMS would be related to personal …

Examining Situations Involving Intimate Partner Aggression: A Dyadic Study Of Agreement On Behaviors, Attributions, And Emotional Effects, Angela Marie Neal

Doctoral Dissertations

There is a growing body of literature investigating agreement of partners on instances of intimate partner aggression (IPA) well as attributions for why people engage in IPA. Although our understanding has increased, there remains a major gap in the literature: the utilization of only one member of a couple's reports of the aggression and attributions (i.e., partners' perceptions of why an event of IPA occurred). Using a dyadic study, romantic couples were asked to independently discuss the same psychological, physical, and sexual IPA incidents in their relationship. Seeking to bridge the two bodies of literature of both perpetrators' and victims' …

Asymmetry In The Magnocellular And Parvocellular Pathways, Jenny Louise Lang

Doctoral Dissertations

Why humans are less sensitive to increment than decrement contrast remains unknown. One hypothesis is that the psychophysical asymmetry in increment and decrement thresholds results from an asymmetry in respective ON and OFF cell contrast gains. Contrast gain also differs, however, by the visual pathway within which the ON and OFF cells travel. Cells show greater contrast gain in the magnocellular (M) than parvocellular (P) pathway. Therefore, the asymmetry in increment and decrement thresholds may also differ by visual pathway. My first three experiments established that observers were more sensitive to decrement than increment contrast in both pathways, in monocular …

Student Attitudes Towards Drinking Behaviors, Laura Gaines

Honors Theses and Capstones

The literature is relatively inconclusive regarding predictors of alcohol use; while some studies have demonstrated an association between high levels of social interaction and increased alcohol use, others have shown that a lack of social support is linked to drinking heavily. The current study was conducted with students at the University of New Hampshire; participants’ attitudes towards alcohol were assessed along with many psychosocial factors. Low levels of conscientiousness, parent and high school influence, frequently attending parties, and friend influence were most highly predictive of positive attitudes towards alcohol; multiple regression of these factors accounted for 30.1% of the variance. …

Sexual Violence And Relationship Abuse Among College Students: The Bystander Intervention Process, Elizabeth J. Wible

Honors Theses and Capstones

This project investigated how college students describe bystander intervention in the context of sexual violence and relationship abuse compared to intervention in a general helping situation. The participants were 53 undergraduate students at a New England University. Prior to graduation, all of the participants were asked questions via audio controlled, face-to-face qualitative interviews that related to their helping behaviors during their time in college. The participant responses revealed that general helping is often a simple, one-time event if time permits it. However, helping in the context of sexual violence or relationship abuse revealed many serious barriers for the bystander due …

Investigating Geometric Representation In Rodents, Samantha Ann Arsenault

Honors Theses and Capstones

No abstract provided.

The Effects Of Mindfulness Meditation On Rumination In Depressed People, Rachel A. Sluder

Honors Theses and Capstones

Mindfulness meditation is a practice of focus, awareness, and non-judgmental acceptance of one's thoughts (Deyo et al., 2009; Kenny et al., 2007). Rumination is a maladaptive pattern of thought that is common in people with depression and other mood disorders. It can lead to further episodes of depression, and can be very destructive in that way (Nolen-Hoeksema, 2008). This paper reviews several studies on mindfulness meditation, depression, and rumination, with a focus on certain areas and phenomena such as alpha asymmetry (Keune et al 2013) and gamma band activity (Berkovich-Ohana et al., 2012). Modalities such as fMRI and EEG are …

Norepinephrine Involvement In The Intermittent Swim Stress-Induced Deficit In Spatial Learning And Memory, Emily Elgert

Honors Theses and Capstones

Learning and memory impairments are often caused by stress disorders including depression. The present study investigated the involvement of norepinephrine in the swim stress-induced deficits of spatial learning and memory. Exposure to intermittent swim stress (ISS) followed by learning and memory tests in the Morris water maze (MWM) were used to investigate this relationship. The ISS paradigm consists of intermittent exposure to cold water, producing stress responses in rats. Reboxetine, a norepinephrine selective reuptake inhibitor (NSRI), was employed to investigate whether this compound reverses the ISS-induced deficit. In other words, rats exposed to the ISS, were hypothesized to experience impaired …

What Are The Relations Among Stress Perception, Health Perception And Activity Participation In School-Aged Children?, Allison Caplin

Honors Theses and Capstones

This correlational study examined possible relations among children’s activity patterns, perceived stress, and perceived health. A variety of self-report questionnaires were administered to a sample of 33 school age children. The Pediatric Activity Sort (PACS) was used to measure activity participation, a health questionnaire was used to assess health, and the Childhood Stress Questionnaire (CSQ) was used to measure perceived stress. Correlations showed no significant relationships between stress level and the amount of reported activity participation. The absence of significant relationships may be due to testing a sample of middle to upper class, Caucasian children, as there was a skewed …

Reflections On Bystander Intervention: Barriers And Facilitators In Sexual Assault Helping, Madeline C. Whitcomb

Honors Theses and Capstones

An innovation in the prevention of sexual assault and relationship violence on college campuses capitalizes on the motivation of bystanders to help stop the crime. Specifically, research on bystander helping shows factors that make it more or less likely that bystanders will take action: sharing a common social group with the victim, perceiving the severity of the situation, concerns about peer reactions and personal safety. While these studies illustrate the reasons bystanders do or do not step in, detailed descriptions of this helping process have yet to be examined. I content coded 20 in-depth qualitative interviews of student’s personal experiences …

Intermittent Swim Stress Effects On Anxiety Behavior, Timothy A. Warner

Doctoral Dissertations

Millions of Americans are suffering from depression each year, leading to a significant number of individuals who seek treatment for their ailment. However, fewer than 50 percent of depressed individuals fully recover using current methods. The comorbidity between depression and anxiety could be a contributing factor in the lower rates of recovery. The demonstrated correlation between anxiety and depression has led to the term "anxious depression," which is associated with difficulty in coping, a poorer rate of recovery, and more severe symptoms of depression. The purpose of this dissertation was to expand on an existing animal model of depression (intermittent …

A Longitudinal Analysis Of The Effect Of Disability Type And Emotional/Behavior Problems On Different Forms Of Maltreatment Across Childhood, Jennifer A. Vanderminden

Doctoral Dissertations

Children are among the most vulnerable people in our population, especially those with disabilities, emotional and behavioral problems (EBP), and those who experience maltreatment. This dissertation increases our understanding of the complex relationships between disability, internalizing symptoms (IS), externalizing symptoms (ES), and maltreatment across developmental stages. Previous literature suggests that children with disabilities (CWD) are at a heightened risk for maltreatment (Spencer, Devereux, Wallace, Sundrum, Shenoy, Bacchus, and Logan 2005 ; Sullivan and Knutson 2000). Yet, recently the Fourth National Incidence Study of Child Abuse and Neglect (NIS-4) has challenged the notion that CWD are at increased risk, showing that …

Investigating Priming, Inhibition, And Individual Differences In Visual Attention, Jennifer Lechak

Doctoral Dissertations

While much has been explored within the attentional control literature, questions still exist as to how attentional processing is modulated, and how different types of visual search paradigms can elucidate the underlying mechanisms involved in successful visual search. Throughout this dissertation, I will focus on the multifaceted aspects that come with the study of visual attention. After discussing visual attention I explore priming of pop out along two different dimensions. Specifically, using a rapid serial visual presentation design, I demonstrate that temporal and spatial priming interact along a similar mechanism. This result adds to the priming literature by demonstrating simultaneous …

Impressions Of College Intructors: Stability And Change In Student Ratings, Kari L. Dudley

Doctoral Dissertations

Although the topic of stability and change in classroom impressions research is not new, there remain unanswered questions about what impressions are stable, when they are likely to change, and for whom they are likely to change over the course of a semester. My research will begin to answer those questions.

My research took place in four college classroom studies and assessed students' impressions of their instructor's teaching effectiveness and personal qualities 1) after the first day of class, 2) before and following at least one exam, and 3) at the end of the semester. My results supported previous findings …

Examining Social Climate And Youth Social Goals On Extended Wilderness Courses: A Path Toward Improving Participant Experiences, Benjamin J. Mirkin

Doctoral Dissertations

This dissertation examined participants' expectations of the social climate on extended wilderness courses, how students' actually experienced the social climate during their course, and how these expectations, perceptions and the influence of environmental characteristics, impacted their goals for peer interactions. Pre and posttest surveys were used to assess students' expectations and perceptions of their experience and multi level modeling was used to better understand the relationship of social climate to peer interaction. The research was undertaken to improve the practical and theoretical understanding of organizations' and leaders' ability to facilitate a social climate that promotes adaptive forms of social motivation. …

Movements, Dive Behavior And Trophic Ecology Of Leatherback Turtles (Dermochelys Coriacea) In The Northwest Atlantic, Kara Dodge

Doctoral Dissertations

The endangered leatherback turtle is a highly migratory predator that feeds exclusively on gelatinous zooplankton. Leatherbacks spend most of their lives submerged or offshore, and their at-sea biology (particularly that of males and sub-adults) is poorly understood throughout much of their range. I used satellite telemetry to monitor movements and dive behavior of nine adult and eleven sub-adult leatherbacks captured off Massachusetts, USA, and tracked throughout the NW Atlantic. Leatherback movements and environmental associations varied by oceanographic region, with slow, sinuous, area-restricted search behavior and shorter, shallower dives occurring in cool, productive, shallow shelf habitat at temperate latitudes. Leatherbacks were …

Enhancing Memory Access For Less-Skilled Readers, Emily R. Smith

Doctoral Dissertations

Ericcson and Kintch (1995) suggested that less-skilled readers often have an impoverished representation of text. The results of five experiments demonstrated that the addition of causality enhanced the text representation of less-skilled readers. Experiments 1-3 showed that the addition of causal information enhanced less-skilled readers' ability to detect global inconsistencies. Experiments 4 and 5 showed that the addition of causal information to updating information resulted in less-skilled readers updating to the same extent as skilled readers.

Socioeconomic Status, Mastery, And Goal-Striving Stress Among Rural Youth, Michael S. Staunton

Master's Theses and Capstones

Although a growing body of research documents the links between goal-striving stress and emotional disorder, less research examines the psychosocial antecedents of goal-striving stress. Drawing on longitudinal survey data from a panel study of rural youth, this thesis examines the effects of socioeconomic status and mastery on educational goal-striving stress, occupational goal-striving stress, and combined goal-striving stress. Results indicate that each measure of goal-striving stress is not equally well predicted by socioeconomic status and mastery. Notably, the effects of socioeconomic status on occupational goal-striving stress and combined goal-striving stress are conditioned by mastery, while neither socioeconomic status nor mastery is …

Religiosity, Identity, And Depression In Late Adolescence: A Longitudinal Study, Erin Sandler

Honors Theses and Capstones

In this study, longitudinal associations among religiosity, identity style, identity commitment, and depression were examined in a sample of late adolescents. Online survey data were collected in two waves with an approximate six-week interval. Correlations demonstrated that high levels of negative aspects of religiosity, such as negative religious coping, predicted high levels of depression. Other aspects of religiosity, such as positive religious coping, did not predict depression. In addition, high levels of diffuse-avoidant identity style predicted high levels of depression, and high levels of identity commitment predicted low levels of depression. However, when a regression was performed with all the …

Do You Really Love Me?: An Experimental Investigation Of Reassurance Seeking And Interpersonal Rejection, Kevin T. Cannon

Honors Theses and Capstones

The authors conducted an experiment to test the interpersonal model of depression (Coyne, 1976), and specifically the link between excessive reassurance seeking (ERS) and rejection. The present study involved college-aged romantic couples. Some participants were then manipulated into perceiving that their partner was seeking reassurance from them. Results support the main tenets of Coyne’s (1976) theory. Participants reported increased frustration and reduced felt closeness to dysphoric partners when they were led to believe that their partners were engaging in ERS. Effects on frustration were moderated by partners’ depression, while effects on felt closeness were partially mediated by frustration, yielding a …