Open Access. Powered by Scholars. Published by Universities.®
Social and Behavioral Sciences Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Memory (10)
- FMRI (8)
- Hippocampus (7)
- Amygdala (6)
- Anxiety (6)
-
- Fear Conditioning (6)
- DTI (5)
- PTSD (5)
- Aging (4)
- Exercise (4)
- Marijuana (4)
- Reconsolidation (4)
- Trauma (4)
- Alzheimer's disease (3)
- Angiogenesis (3)
- Archaeology (3)
- Attention (3)
- Cannabis (3)
- Cognitive control (3)
- Extinction (3)
- Functional Connectivity (3)
- Genetics (3)
- Neuroimaging (3)
- Proteasome (3)
- White Matter (3)
- Adolescence (2)
- Alcohol (2)
- Biomarker (2)
- Choosiness (2)
- Climate (2)
- Publication Year
- Publication
- Publication Type
Articles 1 - 30 of 100
Full-Text Articles in Social and Behavioral Sciences
Elucidating Aposematic Patterns In North American Hylids, Joseph S. Cannizzaro Iv
Elucidating Aposematic Patterns In North American Hylids, Joseph S. Cannizzaro Iv
Theses and Dissertations
Recognizing form and function of animal defenses is paramount to understanding the ecological and evolutionary forces behind predator and prey dynamics. Color patterns are strongly related to defensive strategies in animals. Some rely on camouflage to avoid detection, while others are brightly colored and conspicuously signal their noxiousness to potential predators. Still others combine cryptic dorsal coloration with colorful patches that are concealed in resting position but are facultatively unveiled by special behavior or simply during activity. Such hidden conspicuous color patches may be an intermediate stage in the evolution from camouflage to aposematism. We investigated whether conspicuously colored thighs …
Potential Moderating Impact Of Circulating Endocannabinoids On Resting State Networks And Post-Traumatic Stress Disorder, Emily Anne Albertina
Potential Moderating Impact Of Circulating Endocannabinoids On Resting State Networks And Post-Traumatic Stress Disorder, Emily Anne Albertina
Theses and Dissertations
Introduction: Traumatic injury increases risk for long-term adverse outcomes such as the development of post-traumatic stress disorder (PTSD). Research has found that risk for the development of PTSD after such an injury varies depending on individuals’ race/ethnic group and sex. Although prior work has explored relationships between injury and PTSD in these groups utilizing imaging paradigms (e.g., resting state functional connectivity) and biological paradigms (e.g., the endocannabinoid system), the relationship between these factors has been understudied. The present study explored the potential moderating effect circulating endocannabinoids may have on the relationship between resting state functional connectivity and post traumatic stress …
Using Music To Modify Step-Rate And Running Biomechanics In Healthy Runners, Erin Marie Lally
Using Music To Modify Step-Rate And Running Biomechanics In Healthy Runners, Erin Marie Lally
Theses and Dissertations
Context: Running-related injury (RRI) is a significant public health issue that may be caused by injurious running biomechanics. Increasing step-rate (SR) using gait retraining may prevent and treat RRI. The Optimizing Performance Through Intrinsic Motivation and Attention for Learning (OPTIMAL) theory indicates enhanced expectancies, autonomy, and external focus of attention will optimize motor learning. Music has been shown to create enhanced expectancies, can provide incidental choices (autonomy), directs attention externally, and may increase compliance. No studies have investigated if music can be used to alter SR and running biomechanics or strategies that may improve compliance to gait retraining. Objective: The …
The Biological Bases Of Political Attachment: Neurobiological Correlates Of Ideology And Partisanship, Carisa Bergner
The Biological Bases Of Political Attachment: Neurobiological Correlates Of Ideology And Partisanship, Carisa Bergner
Theses and Dissertations
To fully understand the foundations of political attachments in an increasingly polarized environment, political scientists must reconcile traditional theories of political attitudes and behavior with insight gained from neurobiological approaches. The purpose of this research is to investigate the neurobiological correlates of strength of political ideology and partisanship, as well as the neurobiological correlates of ideological and partisan orientation. To do so, both structural and functional neuroimaging analyses were conducted on a diverse sample of patients at a Level 1 Trauma Center. Results indicate that strong ideological attachment is significantly associated with decreased volume in the left insula, though partisan …
Monitoring Welfare In Captive Chimpanzees (Pan Troglodytes) Using Individual Positional Behavior And Substrate Use Profiles, Joseph Lara
Theses and Dissertations
The welfare of captive chimpanzees partly depends on the structural features present in their enclosure. An individual’s manner of expressing positional behaviors depends on these environmental characteristics and may be reflective of their physical and mental health. This thesis seeks to further the scientific understanding of the relationships between positional behavior, substrate use and captive chimpanzee welfare. In pursuit of this goal, I designed and installed a novel vertical climbing aid onto a climbable platform structure within an enclosure at the chimpanzee sanctuary, Chimp Haven, in an effort to encourage mobility and vertical space use in the enclosure’s residents. Additionally, …
The Evergreen Challenges Of Healing: An Evaluation Of Urban Green Space In Harambee, Kacee Ochalek
The Evergreen Challenges Of Healing: An Evaluation Of Urban Green Space In Harambee, Kacee Ochalek
Theses and Dissertations
Urban green space initiatives have emerged in low- and middle-income cities as a solution to disinvestment, the production of more positive public health metrics, and a tool of community engagement. While the production of urban greening provides ample room for applause, The City of Milwaukee’s Healing Spaces Initiative model regarding the ongoing construction of green space and the implementation of maintenance creates challenges that perpetuate racist capitalistic notions of the neoliberal project. This paper presents reports from participant observation, document analysis, and 17 qualitative interviews with representatives of the City of Milwaukee, community partners, garden leaders, and residents. The data …
Architecture Of Mate Choice Decisions In Enchenopa Treehoppers, Bretta Speck
Architecture Of Mate Choice Decisions In Enchenopa Treehoppers, Bretta Speck
Theses and Dissertations
Mate selection is one of the most important choices a female can make for herself and her offspring. Variation in mate choice decisions has consequences for the maintenance of and the diversity within a population and the promotion of divergence between populations. Mate choice decisions arise from the interaction of two main components: “mate preferences” (the relative attractiveness of a potential mate) and “choosiness” (the effort put into procuring a preferred mate). My dissertation analyzes the relationship between the components involved in female mate choice decisions in Enchenopa binotata treehoppers. I take a three-pronged approach. First, I investigated how E. …
The Effects Of Hybridization On Skeletal Morphology In Two Closely Related Populations Of Rhesus Macaques (Macaca Mulatta): A Geometric Morphometric Approach, Cody Zachery Schumacher
The Effects Of Hybridization On Skeletal Morphology In Two Closely Related Populations Of Rhesus Macaques (Macaca Mulatta): A Geometric Morphometric Approach, Cody Zachery Schumacher
Theses and Dissertations
Precise identification and classification techniques are vital for the field of paleoanthropology to ensure that hominin fossilized remains are labeled accurately. The morphology of extinct hominin specimens will typically be compared to extant nonhuman primate species because of how closely related they are phylogenetically. Observable similarities in their morphological variation can be examined to infer which traits may be a result of evolution and this can update our understanding of their evolutionary relationships. The genus Macaca displays a level of morphological variation that is similar to that seen in the genus Homo, therefore macaques can be used as an analogous …
Are Neuronal Mechanisms Of Attentional Modulation Universal Across Human Sensory And Motor Brain Maps?, Edgar A. Deyoe, Wendy E. Huddleston, Adam S. Greenberg
Are Neuronal Mechanisms Of Attentional Modulation Universal Across Human Sensory And Motor Brain Maps?, Edgar A. Deyoe, Wendy E. Huddleston, Adam S. Greenberg
Kinesiology Faculty Articles
One's experience of shifting attention from the color to the smell to the act of picking a flower seems like a unitary process applied, at will, to one modality after another. Yet, the unique experience of sight vs smell vs movement might suggest that the neural mechanisms of attention have been selectively optimized to employ each modality to greatest advantage. Relevant experimental data can be difficult to compare across modalities due to design and methodological heterogeneity. Here we outline some of the issues related to this problem and suggest how experimental data can be obtained across modalities using more uniform …
Effect Of Neighborhood Socioeconomic Disadvantage On Brain Functional Connectivity And Structural Properties In Trauma-Exposed Adults, Elisabeth Kathleen Webb
Effect Of Neighborhood Socioeconomic Disadvantage On Brain Functional Connectivity And Structural Properties In Trauma-Exposed Adults, Elisabeth Kathleen Webb
Theses and Dissertations
Though there has been substantial progress towards understanding brain-behavior relationships and characterizing the neurobiology of psychiatric disorders, research has not translated as expected into novel prevention and treatment of mental health conditions. One limitation may be the emphasis on individual-level variables (e.g., income) and omission of relevant area-level factors (e.g., neighborhood socioeconomic disadvantage). Recently, attention has been directed towards identifying the biological mechanisms by which neighborhoods impact mental health. The chronic stress associated with living in a disadvantaged neighborhood promotes a cascade of maladaptive events, which in turn impact brain structure and functioning. The processes affected by chronic neighborhood stressors …
Resting State Functional Connectivity In The Default Mode Network: Relationships Between Cannabis Use, Gender, And Cognition In Adolescents And Young Adults, Megan Ritchay
Theses and Dissertations
Introduction: Cannabis is the most commonly used illicit substance in the United States, and nearly 1 in 4 young adults are current cannabis users. The psychoactive component of cannabis, THC, is active at cannabinoid receptors, type 1, or CB1 receptors. CB1 receptors play a critical role in neural development, and chronic cannabis use causes desensitization and downregulation of these receptors. Chronic cannabis use is associated with changes in resting state functional connectivity (RSFC) in the default mode network (DMN) in adolescents and young adults, although results are somewhat inconsistent across studies, likely due to differing methodologies. Additionally, cannabis effects appear …
Effects Of A Novel, Non-Toxic Histone Deacetylase Inhibitor On Hippocampal Memory Formation, Histone Acetylation, And Bdnf Gene Expression In Male Mice, Sarah Brianna Beamish
Effects Of A Novel, Non-Toxic Histone Deacetylase Inhibitor On Hippocampal Memory Formation, Histone Acetylation, And Bdnf Gene Expression In Male Mice, Sarah Brianna Beamish
Theses and Dissertations
Memory dysfunction is a common symptom of aging, neuropsychiatric disorders, and neurodegenerative disorders, yet truly effective treatments for memory loss do not exist. De novo gene transcription is a molecular requirement for long-term memory formation. The transcription of genes related to synaptic plasticity and learning are regulated in part by histone acetylation, an epigenetic mechanism that regulates chromatin accessibility. Pharmacological compounds that maintain histone acetylation, called histone deacetylase inhibitors (HDACi), enhance memory by preventing deacetylation of core histone proteins, which initiates binding of transcriptional machinery to open chromatin. Therefore, HDACi are potentially promising therapeutics that could be used to prevent …
Neural Substrates Of Fear Generalization And Its Associations With Anxiety And Intolerance Of Uncertainty, Ashley Ann Huggins
Neural Substrates Of Fear Generalization And Its Associations With Anxiety And Intolerance Of Uncertainty, Ashley Ann Huggins
Theses and Dissertations
Fear generalization - the tendency to interpret ambiguous stimuli as threatening due to perceptual similarity to a learned threat – is an adaptive process. Overgeneralization, however, is maladaptive and has been implicated in a number of anxiety disorders. Neuroimaging research has indicated several regions sensitive to effects of generalization, including regions involved in fear excitation (e.g., amygdala, insula) and inhibition (e.g., ventromedial prefrontal cortex). Research has suggested several other small brain regions may play an important role in this process (e.g., hippocampal subfields, bed nucleus of the stria terminalis [BNST], habenula), but, to date, these regions have not been examined …
Behavioral And Neural Correlates Of Episodic Memory Regulation, Mrinmayi Kulkarni
Behavioral And Neural Correlates Of Episodic Memory Regulation, Mrinmayi Kulkarni
Theses and Dissertations
Episodic memory retrieval, while critical for daily living, needs to be regulated to maintain goal-directed behavior. Past work has shown that episodic memory regulation engages brain regions involved in cognitive control, such as the dorsolateral and ventrolateral prefrontal cortex. These regions interact with the medial temporal lobe structures to control retrieval processes. In the current study, I paired eye-tracking, a sensitive index of memory, with fMRI in a novel paradigm to address several open questions in the field of episodic memory regulation. Participants initially encoded three celebrity faces and three tools with multiple indoor and outdoor scenes. In a subsequent …
Behavioral, Physiological, And Molecular Characterization Of Long-Term Administration Of A Novel Estrogen Receptor Beta Agonist In A Mouse Model Of Menopause, Aaron William Fleischer
Behavioral, Physiological, And Molecular Characterization Of Long-Term Administration Of A Novel Estrogen Receptor Beta Agonist In A Mouse Model Of Menopause, Aaron William Fleischer
Theses and Dissertations
The menopausal loss of circulating hormones, including estrogens, is associated with negative symptoms, such as hot flashes, anxiety and depression, cognitive decline, and weight gain. Although estrogenic hormone therapies (HT) prevent many of the negative symptoms related to the menopausal transition, these same therapies are associated with increased health risks, such as the development of breast and ovarian cancers, which is mediated by the activation of the a (ERa), but not b (ERb), estrogen receptor isoform. Furthermore, ERb agonism has previously been shown to reduce preclinical indices of hot flashes, memory decline, anxiety, and depression. As most ERb agonists are …
Functional Responding To Appetitive Faces Among Cannabis-Using Adolescents And Young Adults, Ryan Michael Sullivan
Functional Responding To Appetitive Faces Among Cannabis-Using Adolescents And Young Adults, Ryan Michael Sullivan
Theses and Dissertations
Cannabis use is associated with attenuated reward signaling, yet few studies have examined this relationship when viewing rewarding appetitive faces while undergoing functional neuroimaging. Furthermore, few neuroimaging analyses have examined the moderating role of gender on task-based fMRI outcomes. This study explored functional BOLD response elicited by appetitive faces while engaged in an affective go/no-go task, and specifically investigated the differences between cannabis-using and control groups, whether gender moderate findings, and brain-behavior associations. Participants (ages 16-26 years) were scanned after at least 3-weeks of monitored abstinence (cannabis-using group = 35; control group = 33). The findings demonstrated aberrant activation in …
Neural Correlates Underlying The Interactions Between Anxiety And Cannabis Use In Predicting Motor Response Inhibition, Richard Ward
Neural Correlates Underlying The Interactions Between Anxiety And Cannabis Use In Predicting Motor Response Inhibition, Richard Ward
Theses and Dissertations
The ability to effectively withhold an inappropriate response is a critical feature of cognitive control. Prior research indicates alterations in neural processes required for motor response inhibition in anxious individuals, including those with posttraumatic stress disorder (PTSD), and those who engage in regular cannabis use. However, thus far most research has examined how anxiety-related symptoms and cannabis use influence response inhibition in isolation of one another. The current study examined the interactions between anxious symptomology and recent cannabis use in a sample that recently experienced a traumatic event using functional magnetic resonance imaging (fMRI) during the completion of a Stop-Signal …
Restorative Potential And Working Memory Capacity Of Exposure To Vegetation In Indoor Built Environments, Jee Heon Rhee
Restorative Potential And Working Memory Capacity Of Exposure To Vegetation In Indoor Built Environments, Jee Heon Rhee
Theses and Dissertations
This research seeks to understand how natural elements – specifically, vegetation in the indoor environment - influence people’s ability to restore attention and working memory capacity. Previous research demonstrates the benefits of nature on human beings in various ways. For instance, numerous studies show the positive effects of nature on stress reduction (Hartig, Mang, & Evans, 1991; Ulrich et al., 1991) and attention restoration (Staats, Kieviet, & Hartig, 2003). However, most of these studies focus on the effect of nature in outdoor settings. Relatively few studies focus on the presence of natural elements indoors. This is an important gap in …
Inactivation Of Nucleus Reuniens Impairs Spatial Memory In Mice, Miranda Schwabe
Inactivation Of Nucleus Reuniens Impairs Spatial Memory In Mice, Miranda Schwabe
Theses and Dissertations
Episodic memory is a complex process requiring input from several regions of the brain. Coordinated activity in the Dorsal Hippocampus (DH) and medial Prefrontal Cortex (mPFC) is required for episodic memory consolidation. Our laboratory demonstrated that simultaneous subthreshold chemogenetic inactivation of the dorsal hippocampus (DH) and medial prefrontal cortex (mPFC) impairs the consolidation of object placement (OP) and object recognition (OR) memory in female mice (Tuscher et al., 2018), suggesting that these two brain regions work in concert to promote memory consolidation. However, the mechanisms through which the DH and mPFC interact to promote memory consolidation remain poorly understood. A …
Data-Driven Approach To Dynamic Resting State Functional Connectivity In Post-Traumatic Stress Disorder, Carissa Weis
Data-Driven Approach To Dynamic Resting State Functional Connectivity In Post-Traumatic Stress Disorder, Carissa Weis
Theses and Dissertations
Posttraumatic stress disorder (PTSD) is a heterogenous psychological disorder that may result from exposure to a traumatic event. Using functional magnetic resonance imaging (fMRI), symptoms of PTSD have been associated with aberrations in brain networks that emerge in the absence of a given cognitive demand or task, called resting state networks. Most previous research in resting state networks and PTSD has focused on aberrations in the static functional connectivity among specific regions of interest (ROI) in the brain and within canonical networks constrained by a priori hypotheses. However, dynamic fMRI, an approach that examines changes in brain network characteristics over …
The Impact Of Task Load On Neural Entrainment To Attended Speech: A Dual-Task Magnetoencephalography (Meg) Paradigm, Michelle Tamar Kassel
The Impact Of Task Load On Neural Entrainment To Attended Speech: A Dual-Task Magnetoencephalography (Meg) Paradigm, Michelle Tamar Kassel
Theses and Dissertations
Speech comprehension in a noisy environment requires active cognitive control mechanisms to select the relevant speech signal while filtering out irrelevant distractions. When processing speech in a multitask scenario, neural resources underlying cognitive control are considerably burdened and interfering information becomes more difficult to ignore. The present study utilized magnetoencephalography (MEG) to investigate the impact of multitasking on selective attention to speech. Twenty healthy adults performed a multitask paradigm with varying levels of both competing auditory distraction and concurrent visual working memory load. While increased visual working memory load was associated with reduced selective attention to speech in both the …
The Association Of Aerobic Fitness With Resting State Functional Connectivity And Verbal Learning And Memory In Healthy Young Adults, Kyle Joseph Jennette
The Association Of Aerobic Fitness With Resting State Functional Connectivity And Verbal Learning And Memory In Healthy Young Adults, Kyle Joseph Jennette
Theses and Dissertations
The beneficial effects of exercise and cardiopulmonary fitness on general health, quality of life, and reduction of mortality are well known in older adults. There is evidence to support the positive effects of exercise and aerobic fitness on psychiatric and neurocognitive function in children, adults, and older adults. Indeed, many studies have explored the positive effects of aerobic fitness on slowing cognitive decline associated with normal and pathological aging. However, comparatively fewer empirical studies in the literature exist to support and understand the effects of aerobic fitness on the developing brain, particularly during adolescence and young adulthood, especially as it …
Shaped By The Environment: The Influence Of Childhood Trauma Exposure, Individual Socioeconomic Position, And Neighborhood Disadvantage On Brain Morphology, Elisabeth Kathleen Webb
Shaped By The Environment: The Influence Of Childhood Trauma Exposure, Individual Socioeconomic Position, And Neighborhood Disadvantage On Brain Morphology, Elisabeth Kathleen Webb
Theses and Dissertations
The relationship between an individual’s socioeconomic position (SEP) and their overall physical and mental health has been well demonstrated. Far less is known about how area-level factors, such as neighborhood disadvantage, “get under the skin”. Previous research indicates lower SEP and childhood trauma negatively effects brain structure and function. The hippocampus, amygdala, and ventromedial prefrontal cortex (vmPFC) are particularly vulnerable to adversity. The current study investigated how individual SEP, childhood trauma, and neighborhood disadvantage impact these structures. Two-hundred and fifteen individuals were recruited from an Emergency Department in southeastern Wisconsin. Two-weeks post-traumatic injury, participants completed a structural magnetic resonance imaging …
Attention Capture By Episodic Long-Term Memories: Evidence From Eye Movement Data, Allison Eleanor Nickel
Attention Capture By Episodic Long-Term Memories: Evidence From Eye Movement Data, Allison Eleanor Nickel
Theses and Dissertations
Successfully navigating the world on a moment-to-moment basis requires the interaction of multiple cognitive processes. Therefore, studies that examine when and how these fundamental processes interact can provide important insights into how we behave. Many studies indicate that long-term memory can facilitate search for a target object (e.g., contextual cueing), however, the ways in which long-term memory might capture attention and disrupt goal-directed behavior have not been well studied. In five experiments, questions about whether encoded objects might capture attention, even when they are task-irrelevant, were addressed. Each experiment began with an encoding phase, where participants were instructed to commit …
Neural Substrates Of Active Avoidance And Its Impact On Fear Extinction, Elizabeth Parisi
Neural Substrates Of Active Avoidance And Its Impact On Fear Extinction, Elizabeth Parisi
Theses and Dissertations
Models of anxiety suggest that avoidance of a conditioned fear stimulus prevents new safety learning, thereby serving to maintain fear. However, there is little empirical data in humans on the impact of avoidance of conditioned fear stimuli on subsequent fear extinction. In the present study I investigated the effect of avoidance of threat on neural activity during avoidance/control and a subsequent extinction phase using ultra high-resolution (7T) fMRI. Results indicated that active avoidance was associated with increased activity in regions involved in reward prediction, but this did not differentiate active avoidance from an active control condition. Neural activation during the …
Prehistoric Humans And Elk (Cervus Canadensis) In The Western Great Lakes: A Zooarchaeological Perspective, Rebekah Ann Ernat
Prehistoric Humans And Elk (Cervus Canadensis) In The Western Great Lakes: A Zooarchaeological Perspective, Rebekah Ann Ernat
Theses and Dissertations
This thesis examines the relationship between humans and elk (Cervus canadensis) in the western Great Lakes region from prehistoric through early historic times, with a focus on Wisconsin archaeological sites. It takes a social zooarchaeological perspective, drawing from archaeological, ecological, biological, historical, and ethnographic sources. I also use optimal foraging theory to examine subsistence-related decisions. Based on my review of 34 Wisconsin archaeological sites or site components, elk diminished in relative dietary importance in prehistoric times as subsistence strategies shifted. The use of their bones, especially scapulae and antlers, in tool production increased. Other roles, as markers of group and …
Practical Problems And Moral Discourses: An Ethnography Of Breastfeeding, Tara Ann Gallagher
Practical Problems And Moral Discourses: An Ethnography Of Breastfeeding, Tara Ann Gallagher
Theses and Dissertations
Universal and bioactive, breastfeeding is a burgeoning biocultural topic because it incorporates biological and social determinants of human behavior. The topic has amassed media attention framed as part of a bigger imagining of motherhood as an idealized state directed at the female body’s performance. This paper questions media and public policy’s role in the dissemination of culture and the symbolic value of breastmilk. This study examines breastfeeding discourses through the lens of an American, mostly white, Midwestern middle-class social structure. Using participant observation data of two postpartum support groups and semi-structured interviews with six primiparous mothers, my data suggests that …
Heirloom And Hybrid Corn In The American Corn Belt: An Ethnography Of Seed Saving Practices, Rachelle Halaska
Heirloom And Hybrid Corn In The American Corn Belt: An Ethnography Of Seed Saving Practices, Rachelle Halaska
Theses and Dissertations
This ethnographic study examines the practices and context of contemporary heirloom corn seed saving practices and projects in the American Corn Belt. It examines heirloom corn conservation and hand pollination practices at Seed Savers Exchange in Decorah, Iowa in 2015. From there the study extends to interviews with heirloom farmers, breeders and gardeners in Wisconsin and Illinois. The findings indicate that the lines between the mainstream and the margins of corn production are highly blurred, and that there is a considerable amount of cross-pollination of ideas and practices between alternative corn farming and dominant industrial hybrid production in the American …
Cholesterol: A Possible Mediator Of Apoe Risk For Alzheimer's Disease, Michelle Marie Dunk
Cholesterol: A Possible Mediator Of Apoe Risk For Alzheimer's Disease, Michelle Marie Dunk
Theses and Dissertations
Despite the well-established link between the ε4 allele of the apolipoprotein E (APOE) gene and AD, the underlying mechanisms that mediate the risk of developing AD remain elusive. Literature on the role of APOE in cholesterol metabolism suggests that blood cholesterol may be a key factor in the development of AD pathology. Current study aims to investigate whether total cholesterol differs by APOE status and whether this relationship is predictive of AD diagnosis and its biomarkers. Baseline total cholesterol, APOE status, AD diagnosis, global cognitive function, brain Aβ, plasma Aβ40 and Aβ42, and cerebrospinal fluid (CSF) Aβ, tau, and phosphorylated …
Reexamining Object-Based Visual Attention: Understanding The Nature Of Direction-Dependent Attention Shifts, Adam Joseph Barnas
Reexamining Object-Based Visual Attention: Understanding The Nature Of Direction-Dependent Attention Shifts, Adam Joseph Barnas
Theses and Dissertations
Attentional selection is a process by which relevant sensory stimuli are afforded enhanced priority for processing over and above irrelevant sensory stimuli. Object-based attention is a form of selection that leads to preferential processing of visual information contained in/on an attended object versus an unattended object. Observers typically exhibit enhanced performance to a target at an invalidly cued same object location compared to a different-object location, which results in a same object advantage as measured by the response time (RT) difference between these two target locations. A growing body of research has shown that object-based effects are small, inconsistent, and …