Over the last decade, linguistic relativity has seen a resurgence in research and discourse on thought, language, and culture. One particular facet of this research, multilingualism, has been relatively sparse in comparison to the wealth of research available focusing on individual languages and monolingual speakers. This study represents a preliminary investigation that enters this arena by focusing specifically on how speakers of English as a second language use English basic color terms in respect to monolingual speakers. This is done by using a modified methodology from the World Color Survey as a comparative model of a speaker’s division of colors. Participants in this study illicit responses for 160 color tiles taken from the Munsell color chart used as the basis of the World Color Survey. The results of this study show that three of the ten multilingual participants division of the color space per English color terms falls outside of the normal range of variation between the monolingual English speakers who participated in this study. Though future research is needed to definitively posit the reasons for those participants color maps, this study provides a new window and inquiry into an under-researched area of linguistic relativity.

This work sets out to explore changeability in woven expressions using optic fibers in an interior context for home environment. The primary motive is to investigate how optic fibers can change the expression of a woven textile through its color and placement in the structure. The work was conducted with a trial and error-method by sketching, weaving samples, etching the optic fibers, and exploring how the fibers changed the expression and properties of the woven textile. Experiments with displaying the textiles in the intended environment were conducted in order to experience the effect of color and expression changeability. With the optic fibers the expressions repurpose weave structures and patterns, connecting them to the craft of weaving. The result is three double woven textiles with two stages each, activated and unactivated. In the activated state, the optic fibers brings new expressions through color and pattern from a white textile, which is the unactivated stage.

This research investigated both cognitive and affective influences of alternative color combinations in a search task paradigm. The effects of re-mapping the existing, comparatively arbitrarily color codes of baggage X-ray images, were explored. Alternative color-codes were evaluated for improving the economy of visual search in X-ray baggage screening. Using a 2 x 2 between-groups design, the perceptual aspects of color-codes varying in degree of visual agreeability (accordant or discordant) and color contrast (high or low) were examined in terms of effectiveness (detection accuracy) and efficiency (reaction time). Three hypotheses were put forth; two postulated main effects for color contrast and for visual agreeability, and a third postulated an interaction. Additionally, for comparison purposes, a fifth group of participants was presented with a stimulus condition that represented the current industry standard for colorizing X-ray images. Out of 100 volunteers, data were usable for 95 participants who had been randomly assigned to one of five conditions. All participants were exposed to the same screening task. The screening task required participants to view 153 X-ray images in random order. Of these images, 36 contained a single threat item (knife, scissor, gun) among clutter. Analyses of variance revealed significant differences between conditions with respect to detection accuracy. Implications are that high-color contrast improves detection accuracy; specifically with respect to correct rejections, and that this effect on performance can be moderated by psycho-emotional mechanisms. Specifically, the impact of color-contrast was significantly more pronounced under conditions of accordant color combinations. Theoretical underpinnings and applications to other domains are discussed.

This research focuses on extracting road models from stereo video sequences taken from a moving vehicle. The proposed method combines color histogram based segmentation, active contours (snakes) and morphological processing to extract road boundary coordinates for conversion into Matlab or Multigen OpenFlight compatible polygonal representations. Color segmentation uses an initial truth frame to develop a color probability density function (PDF) of the road versus the terrain. Subsequent frames are segmented using a Maximum Apostiori Probability (MAP) criteria and the resulting templates are used to update the PDFs. Color segmentation worked well where there was minimal shadowing and occlusion by other cars. A snake algorithm was used to find the road edges which were converted to 3D coordinates using stereo disparity and vehicle position information. The resulting 3D road models were accurate to within 1 meter.

Parasites often have profound effects on the survival and evolution of their hosts, and hence on the structure and health of entire ecosystems. Yet basic questions, such as the degree of virulence of a given parasite on its host, and factors influencing which hosts in a population are at the greatest risk of infection, are vexingly difficult to resolve. The western blacklegged tick-western fence lizard (Ixodes pacificus-Sceloporus occidentalis) system is important, primarily because I. pacificus, a vector of the Lyme disease spirochete Borrelia burgdorferi, is dependent on S. occidentalis for blood meals in its subadult stages, and this lizard possesses an innate immune response that removes the Lyme disease pathogen from attached ticks. My study focused on two aspects of the I. pacificus-S. occidentalis interaction. In Chapter 1, I investigated factors correlating with the intensity of I. pacificus infestations on S. occidentalis. Infection intensity (parasites per host) is often highly variable within a host population, though certain individuals, such as males, tend to be more heavily infected. Previous work in the I. pacificus-S. occidentalis system suggests that differences in behavior, such as the frequency of territorial patrols, may contribute to variation in tick intensity among lizards. I therefore hypothesized that lizard traits that correlate with dominance would also correlate with infestation intensity. Specifically, I predicted that larger and more colorful males would have higher infestation intensities than less impressive animals. In this chapter, I also focused on site selection by ticks infesting S. occidentalis. Skin folds on the necks of these lizards (nuchal pockets) may function to divert ectoparasites away from eyes, ears, and other potentially vulnerable structures. I therefore also looked for factors correlating with tick attachment in these pockets. I sampled ticks on adult male S. occidentalis in the spring and summer, which is the seasonal peak for both S. occidentalis territorial behavior and subadult I. pacificus abundance. After determining the site of infestation and intensity of ticks on these lizards, I re-infested lizards with laboratory-reared I. pacificus larvae, and again quantified tick intensity and attachment location. Contrary to expectation, no host traits correlated with tick intensity among ticks naturally infesting lizards, and lab-reared larval intensity was negatively correlated with lizard body size. As expected, ticks acquired by lizards naturally concentrated inside nuchal pockets, and I also observed this site preference among ticks in lab-based experimental infestations. Although the general pattern, lab-reared ticks were more varied in the sites on which they fed. There was a negative correlation between infestation intensity and the proportion of ticks attached in nuchal pockets. Unsurprisingly, the most reliable predictor of tick intensity and site selection was the season. In Chapter 2, I explored how tick attachment affects male S. occidentalis contest behavior. I. pacificus infestation has been shown to have negative physiological impacts on S. occidentalis, but mechanisms linking physiological changes to ultimate fitness consequences have been largely underexplored. I hypothesized that tick infestation reduces male S. occidentalis fighting ability by reducing O2 carrying ­­capacity­, or by obstructing or damaging vulnerable structures on their hosts. I held fifty half-hour trials between pairs of size- and ventral badge-matched male S. occidentalis, with one male in each pair infested with lab-reared I. pacificus larvae. I found that tick infestation negatively correlated with aggressive behavior in these staged contests. In support of reduced O2 capacity as the mechanism of reduced aggression, my ecologically relevant infestation intensities seemed to cause significant declines in hematocrit among experimentally infested lizards relative to controls. However, the site at which ticks attached did not significantly correlate with the aggressiveness of their lizard hosts. This is one of only a handful of studies to address the direct effect of I. pacificus on S. occidentalis. My study demonstrates that tick infestation can be detrimental to the fitness of their lizard hosts even without the transmission of pathogens. This insight may prove informative in future work on the ecology of I. pacificus-borne diseases in the western United States. This study is also one of only a few to use parasite infection to induce an asymmetry in fighting ability in intrasexual contests.

Thesis advisor: Janet E. Helms / Due to the intersection of their race and gender categories, with one (race) being marginalized and the other (gender) being privileged, men of color have unique experiences of gendered racism, defined as the ways in which racist incidents are focused specifically on their race-gender categorization. Research has shown that gendered racist experiences are related to worse mental health outcomes in men of color. However, it is not known how men of color’s understanding of themselves, as both people of color and men, interacts with the relationships between their gendered racist experiences and mental health. Therefore, the purpose of the current study was to explore men of color’s racial and maleness identities in relation to their mental health and gendered racist experiences.Adult men of color (N = 195) were invited to complete measures that assessed gendered racist experiences (Everyday Discrimination Scale), racial identity (People of color Racial Identity Attitudes Scale), maleness identity (Maleness Identity Attitudes Scale), and psychological distress and wellbeing as mental health outcomes (Mental Health Inventory). Multivariate regression analyses revealed that more experiences of gendered racism were related to higher levels of psychological distress, but were not related to psychological wellbeing. Simple linear moderation analyses indicated that racial identity moderated the relationship between gendered racist experiences and psychological distress, while maleness identity moderated the relationship between gendered racist experiences and psychological wellbeing, in some instances. Moderated moderation analyses indicated that the interaction between racial and maleness identities did not moderate the relationship between experiences with gendered racism and mental health in most instances. Collectively, the results indicate that the ways in which men of color make sense of themselves as people of color and men, independently, have implications for how gendered racist experiences relate to their mental health. However, results did not paint a clear picture of how men of color’s conceptualizations of themselves as both people of color and men relates to their experiences of gendered racism and mental health. Limitations, including the availability of measures for assessing men of color’s identities holistically rather than independently, are addressed. Implications of the results for intersectionality theory and research, practice, and lay men are discussed. / Thesis (PhD) — Boston College, 2022. / Submitted to: Boston College. Lynch School of Education. / Discipline: Counseling, Developmental and Educational Psychology.

京都大学 / 新制・課程博士 / 博士(工学) / 甲第24630号 / 工博第5136号 / 新制||工||1981(附属図書館) / 京都大学大学院工学研究科分子工学専攻 / (主査)教授 水落 憲和, 教授 関 修平, 教授 梶 弘典 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DGAM

People of Color (POC) and Lesbian, Gay, Bisexual, Transgender, or Queer (LGBTQ) people have experienced disembodiment due to the Christian dualism in the white Evangelical Protestant (WEP) church and its liturgies. The project first analyzes how this Christian dualism interacts with white supremacy and homophobia within the Sunday liturgy. Then, the project describes how disembodied liturgies significantly harm POC and LGBTQ people. As a response, a theology of embodiment can bring healing to POC and LGBTQ people by implementing embodied liturgies at Table San Diego, a multiracial, LGBTQ-affirming congregation attempting to integrate the Christian faith with the physical body, the lived experience, and social contexts. Addressing the racial, gendered, sexual, and classed experiences of the congregation across various social, political, economic, and religious climates requires a reimagination of the Sunday liturgy as an embodied experience. Liturgical research is drawn from the Black Spirituals, the Gay Liberation Movement, and Asian-American liturgies.

Two interesting properties of the distribution of spatially selective attention have been noted in the behavioral and electrophysiological literature. First, there is a graded field of attention that expands from the center of the attended area. Second, the size of the attended area can be adjusted to be either larger or smaller in order to match the demands of the current task. Five event-related potential (ERP) studies are presented that extend these findings in several important ways; 1) The time frame of these two distribution properties is different. Results are consistent with a two stage model of spatial attention in which visual processing is initially enhanced for all stimuli presented near the center of the attended area as indexed by the amplitude of the first negative peak in the waveform (N1). Subsequently, the effects of narrowing or expanding the attentional field to the relevant size affects visual processing as indexed by the amplitude of the second negative peak (N2). 2) Object boundaries had limited impact on either the spread of the initial gradient of spatial selection or the scale of attention. 3) When selecting visual stimuli for attentive processing based on features such as color and size there is also a gradient of facilitation, but the impact of this graded selection on visual processing is not observed until later in processing, and is indexed by the amplitude of the selection negativity (SN). Furthermore, similar to the lack of interaction between object boundaries and the range of cued locations, the gradients of feature-based selection are not affected by the range of cued features.

Reading is a skill that unlocks the doors of learning and success. It is commonly accepted that reading is a foundational skill that plays a major role in a child's academic success. The history of teaching reading includes many theories about the development of reading, the source of reading difficulties, and interventions for remediation. A large body of research has demonstrated that reading difficulties stem from a phonological basis and interventions that target this area are generally beneficial in helping improving reading skills (National Reading Panel, 2000; Shaywitz, 2003; Stanovich, 1986). However, there are some who even with extensive intervention continue to struggle to read. Helen Irlen (2005) proposed that these people may experience visual-perceptual distortions when reading high-contrast text (black on white background). Irlen claims that symptoms of this disorder, termed Scotopic Sensitivity or Irlen Syndrome, can be alleviated by the use of color overlays or filters (tinted glasses). Research into the existence of this syndrome and the effectiveness of the overlays and filters to remediate reading problems has been inconsistent and criticized for lacking scientific rigor and heavy reliance on subject report of improvement. The present study seeks to evaluate differences that may exist in eye movements and reading fluency when subjects diagnosed with IS read text with and without color overlays. Participants were screened with the Irlen Reading Perceptual Scale (IRPS) to determine whether or not they suffered from the syndrome. From this screening, participants chose an overlay reported to alleviate distortions or discomfort they experienced when reading. They were then asked to read 18 passages under three conditions--with a clear overlay, with their chosen overlay, and with a random overlay--while their eye movements were recorded. Results indicated that participants showed no improvement in eye movement or reading fluency when they read passages with an optimum (chosen) overlay verses a clear overlay or a random overlay.