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Articles 31 - 60 of 78
Full-Text Articles in Life Sciences
Mindfulness And Law Enforcement: An Effective Approach To Implementing Mindfulness For First Responders, Gina White
Mindfulness And Law Enforcement: An Effective Approach To Implementing Mindfulness For First Responders, Gina White
Mindfulness Studies Theses
An increasing number of studies show that people employed as first responders in high trauma service jobs tend to experience a high level of stress, at work and after hours. Studies suggest that constant exposure to job related stress leads to both physical and mental dysregulation. This study looks at the effects of implementing mindfulness tools and techniques to those working in law enforcement. Other works on this topic report mindfulness as a successful tool to increase wellbeing to a broad spectrum of populations. The methodology used in this study was designed specifically for first responders. The data findings were …
Central And Peripheral Difference In Perceptual Bias In Ambiguous Perception Using Dichoptic Stimuli --- Implications For The Analysis-By-Synthesis Process In Visual Recognition, Li Zhaoping Prof
MODVIS Workshop
No abstract provided.
Applying Fmri Complexity Analyses To The Single-Subject: A Case Study For Proposed Neurodiagnostics, Anca R. Radulescu, Emily R. Hannon
Applying Fmri Complexity Analyses To The Single-Subject: A Case Study For Proposed Neurodiagnostics, Anca R. Radulescu, Emily R. Hannon
Biology and Medicine Through Mathematics Conference
No abstract provided.
Comparing Diverse V1 Models On The Same Platform: Virtual V1sion, Cheryl Olman
Comparing Diverse V1 Models On The Same Platform: Virtual V1sion, Cheryl Olman
MODVIS Workshop
No abstract provided.
Effects Of Anandamide Administration On Components Of Reward Processing, Howard C. Cromwell
Effects Of Anandamide Administration On Components Of Reward Processing, Howard C. Cromwell
Howard Casey Cromwell
An Analysis Of Neurogenesis In A Mouse Model Of Chemotherapy Related Cognitive Impairment, Maxwell A. Hennings
An Analysis Of Neurogenesis In A Mouse Model Of Chemotherapy Related Cognitive Impairment, Maxwell A. Hennings
Electronic Theses and Dissertations
Cancer patients treated with adjuvant chemotherapy often experience cognitive decline following treatment. This phenomenon, often dubbed “chemo brain” or “chemo fog” is usually temporary, but for a subset of survivors, these cognitive impairments can be long-lasting (>10 years) and negatively affect patients’ quality of life, career performance, and social fulfillment. While it is unclear what neurobiological mechanisms underlie chemotherapy related cognitive impairment, the majority of the animal literature has focused on adult neurogenesis. One process important for neurogenesis is the proliferation of new neurons within the dentate gyrus of the hippocampus. It is evident that many chemotherapy agents can …
Therapy Dogs And The Impact On Employees In The Pediatric Medical Setting, Laine Foith
Therapy Dogs And The Impact On Employees In The Pediatric Medical Setting, Laine Foith
Electronic Theses and Dissertations
More than 40% of nurses reported experiencing significant burnout. Burnout is characterized by disengagement, cynicism, negative views of personal accomplishment and ability, and emotional exhaustion. The healthcare providers that experience burnout can possibly expect a decrease in ability to recognize/report errors, increase of negative feelings toward the patient, and decrease levels of patient satisfaction (Ernest, 2014). One of the ways Schub (2015) suggested to regulate burnout for employees was to provide psychosocial support to colleagues to reduce stress. This study is one of the first attempts to bridge the gap between the unknown correlation between qualitative and quantitative benefits of …
Neuroscience Underlying Temporal Cue Discrimination In The Auditory Cortex, Samantha D. Rosicke
Neuroscience Underlying Temporal Cue Discrimination In The Auditory Cortex, Samantha D. Rosicke
Honors Scholar Theses
Animals, including rats and humans, use the auditory cortex to discriminate auditory cues for communication and survival. It has been shown that individual neurons in the A1, ventral auditory field (VAF), and suprarhinal auditory field (SRAF) of the rat auditory cortex respond to different noise burst lengths to help the rat comprehend an auditory stimulus. In this experiment, we demonstrate the behavioral ability of male Long Evans rats to discriminate between noise bursts of different temporal lengths: 12 ms and 66 ms, in a Two-Alternative Forced Choice task. The study of temporal cue discrimination in the auditory cortex can be …
Rat Hind Limb Nociceptive Withdrawal Response To Heat And Mechanical Stimuli Depends On Initial Position Of The Paw But Not Stimulus Location, Giavanna Verdi
Rat Hind Limb Nociceptive Withdrawal Response To Heat And Mechanical Stimuli Depends On Initial Position Of The Paw But Not Stimulus Location, Giavanna Verdi
Senior Honors Projects, 2010-2019
Mammals rapidly withdraw their hind limb in response to noxious stimulation, which is a protective movement known as the nociceptive withdrawal response (NWR). The NWR has been previously studied in spinalized, decerebrated and anesthetized non-human and human mammals; however, there is minimal information on the NWR in intact, unanesthetized non-human mammals.
The first specific aim was to identify the factors that determine the direction and magnitude of the NWR in intact, unanesthetized rats. Based on previous studies, we hypothesized that the location of stimulation and the initial position of the paw preceding the NWR will influence the direction and magnitude …
The Effects Of Ocular Dominance On Visual Processing In College Students, William A. Holland
The Effects Of Ocular Dominance On Visual Processing In College Students, William A. Holland
Senior Honors Projects, 2010-2019
V. Abstract
The role of ocular dominance in processing visual memory and analytic tasks is unknown. Previous research variably showed both significant effects and no effect of ocular dominance on visual perception, motor control and sports performance. Consequently, the goal of this study was to determine if there is a relationship between ocular dominance and visual processing under a variety of computer gaming tasks. This was accomplished by first determining subjects’ ocular dominance through the use of the Miles test, and then proceeding to examine the subjects’ visual performance on four different Lumosity games under three conditions: left eye, right …
Mouth Exposure To Carbohydrate Prior To Exercise Possibly Impairs The Efficacy Of Carbohydrate Mouth Rinsing During Exercise, Kevin Decker
Mouth Exposure To Carbohydrate Prior To Exercise Possibly Impairs The Efficacy Of Carbohydrate Mouth Rinsing During Exercise, Kevin Decker
Masters Theses, 2010-2019
Decker K. P., M. J. Saunders, N. D. Luden, C. J. Womack, and N. J. Hladick. Mouth Exposure to Carbohydrate Prior to Exercise Possibly Impairs the Efficacy of Carbohydrate Mouth Rinsing during Exercise. Purpose: Carbohydrate mouth-rinsing (CHO-MR) during intense endurance exercise has been associated with improved cycling performance, due to neurological influences. However, prior studies have reported the efficacy of CHO-MR is attenuated following a pre-exercise meal. To determine if this outcome is related to desensitization of CHO receptors (rather than metabolic effects following digestion), this study will investigate whether CHO-MR prior to exercise influences cycling performance when CHO-MR …
Central Role Of Vasotocin In The Neuroendocrine Regulation Of Stress Responses And Food Intake In Chickens, Gallus Gallus, Gurueswar Nagarajan
Central Role Of Vasotocin In The Neuroendocrine Regulation Of Stress Responses And Food Intake In Chickens, Gallus Gallus, Gurueswar Nagarajan
Graduate Theses and Dissertations
It is well known that arginine vasotocin (AVT) in birds is involved in physiological homeostasis such as cardiovascular, osmotic regulation as well as reproductive functions. Pertinent to these physiological functions, AVT immunoreactive (-ir) neurons in the hypothalamus have been found associated with hemorrhage, dehydration, oviposition and other physiological regulation. Evidence, however, suggests that AVT also plays significant roles in modulating behavior, memory, stress, and food intake. This dissertation research addresses the latter two neuroendocrine functions of AVT in detail within the chicken brain. First, the functional role of AVT-ir neurons in conjunction with corticotropin releasing hormone (CRH)-ir neurons in the …
A Behavioral Prerequisite For The Genetic Analysis Of Auditory Feature Detection Mechanisms In Female Crickets, Rebecca L. Blisko
A Behavioral Prerequisite For The Genetic Analysis Of Auditory Feature Detection Mechanisms In Female Crickets, Rebecca L. Blisko
Senior Honors Projects
Sexual dimorphism is exhibited across all cricket species and is a central aspect of the mating processes of these insects. Only male crickets possess wing structures and pattern generators in the central nervous system that allow them to produce a mating call that is unique to their species in order to attract conspecific females. Conspecific females possess an auditory feature detection circuit in the central nervous system that is capable of detecting the species-specific frequency and temporal pattern of sound pulses within a male call. In order for dimorphic differences in mating behavior to result in successful continuation of a …
Neurostructural Organization And Neocortical Projecting Neuron Distribution In A Mouse Model Of Timothy Syndrome-Mediated Autism Spectrum Disorder, Aiden L. Ford
Honors Scholar Theses
Aims: This study investigates the nuanced effect of the CACNA1C mutation on neurocognition and neurodevelopment via an extended study of the Timothy Syndrome (TS) mediated Autism Spectrum Disorder (ASD) mouse model – TS2-neo. It includes: (1) an expanded assessment of the TS2-neo behavioral phenotype, and (2) a comprehensive histological analysis of cortical structural and laminar features.
Methods: 24 age-matched male mice – 12 TS2-neo (B6.Cg-Cacna1ctm2Itl, knock-in G406R mutation), 12 WT (C57BL/6J) – were tested on paradigms examining motor, socio-communicative and cognitive abilities. Neural tissue was processed for either volumetric analysis through Nissl stain (8 TS2-neo, 8 WT) or …
On The Origin Of Sensory Errors, Jonathan R. Flynn
On The Origin Of Sensory Errors, Jonathan R. Flynn
Dissertations & Theses (Open Access)
Estimation of perceptual variables is imprecise and prone to errors. Although the properties of these perceptual errors are well characterized, the physiological basis for these errors is unknown. One previously proposed explanation for these errors is the trial-by-trial variability of the responses of sensory neurons that encode the percept. Initially, it would seem that a complicated electrophysiological experiment would need to be performed to test this hypothesis. However, using a strong theoretical framework, I demonstrate that it is possible to determine statistical characteristics of the physiological mechanism responsible for perceptual errors solely from a behavioral experiment. The basis for this …
Anxiety-Like Behaviors And C-Fos Expression In Adult Zebrafish: Effects Of Housing Conditions, Alcohol And Caffeine, Adam Douglas Collier
Anxiety-Like Behaviors And C-Fos Expression In Adult Zebrafish: Effects Of Housing Conditions, Alcohol And Caffeine, Adam Douglas Collier
Dissertations
Alcohol abuse is the third largest risk factor for disease world, responsible for an estimated 3.3 million deaths each year. The concomitant ingestion of alcohol and caffeine is hypothesized to increase risk factors associated with alcohol use alone by reducing subjective effects of intoxication. The zebrafish (Danio rerio) has recently garnered attention from researchers as an effective pre-clinical in-vivo animal model in behavioral pharmacology research, largely due to small size, low-cost and ease of drug delivery. A number of studies have reported the effects of alcohol and caffeine on zebrafish behavior at a variety of doses. However, the …
Persistent Neurobehavioral Traits In A Mouse Model Of Prenatal Ethanol Exposure, Jill M. Lawrence
Persistent Neurobehavioral Traits In A Mouse Model Of Prenatal Ethanol Exposure, Jill M. Lawrence
Neuroscience Honors Papers
Fetal Alcohol Spectrum Disorders (FASD) effect an estimated 2% of the population, causing a range of symptoms: from craniofacial defects to inhibited cortical growth (May, et al., 2009; Murawski, et al., 2015). Impaired medial forebrain function apparent in FASD is associated with lifelong cognitive behavioral deficits, but these consequences may be avoided with early diagnosis and intervention (Streissguth, et al., 2004). Our goal is to identify early neurobehavioral abnormalities that persist into adulthood that could potentially serve as early indicators for FASD. Mouse models of prenatal ethanol exposure were developed using a voluntary drinking paradigm that introduced a sweetened ethanol …
Tracking Behavioural And Neuronal Responses To Social Pheromones: Insights From A Drosophila Model, Justin R. Croft
Tracking Behavioural And Neuronal Responses To Social Pheromones: Insights From A Drosophila Model, Justin R. Croft
Electronic Thesis and Dissertation Repository
If eusociality evolved through modification of pre-social mechanisms for regulating personal reproduction, then even insects like Drosophila may be vulnerable to latent effects of 'queen' pheromone. Here, I test if male fruit flies respond to a eusocial queen bee pheromone. I found that male flies were attracted to queen bee pheromone, and pheromone-treated males raised the intensity of their courting towards conspecific females. These novel observations from Drosophila suggest that male flies have the capacity to respond to queen pheromone in a manner that is comparable to the native response from male (drone) bees. I therefore optimized a nuclear factor …
The Influence Of Estrogen On Sex Differences In Chemotherapy-Induced Nausea And Vomiting (Cinv), Danna L. Zevy
The Influence Of Estrogen On Sex Differences In Chemotherapy-Induced Nausea And Vomiting (Cinv), Danna L. Zevy
Electronic Thesis and Dissertation Repository
Chemotherapy-induced nausea and vomiting (CINV) is one of the most distressing events that affects the quality of life of cancer patients. Evidence suggests that females are more susceptible to CINV than males, but the mechanism remains unknown. The current thesis examined whether higher levels of circulating estrogens in females contributes to this sex difference. CINV was analyzed in a pediatric oncology population, where it was revealed female patients demonstrate increased delayed CINV relative to male patients, in the post-pubertal age group. CINV was also studied by examining the influence of the estrous cycle on anticipatory nausea (AN) in rats. This …
Effects Of Systemic Administration Of 8-Oh-Dpat On Agonistic Social Behaviors In Male Syrian Hamsters, Corey Andrews
Effects Of Systemic Administration Of 8-Oh-Dpat On Agonistic Social Behaviors In Male Syrian Hamsters, Corey Andrews
Georgia State Undergraduate Research Conference
No abstract provided.
Effects Of Dietary Emulsifiers On Vasopressin And Oxytocin In Mice, Krishna Mehta
Effects Of Dietary Emulsifiers On Vasopressin And Oxytocin In Mice, Krishna Mehta
Georgia State Undergraduate Research Conference
No abstract provided.
Acquisition And Maintenance Of Social Status Results In Difference In Simulated Aggression Between Dominant And Subordinate Green Anole Lizards Independent Of Testing Context, Christofer Brown
Georgia State Undergraduate Research Conference
No abstract provided.
The Effects Of Soil Copper Contamination On Earthworm Cholinergic Transmission, Locomotion And Muscle Physiology, Tommaso Meregalli
The Effects Of Soil Copper Contamination On Earthworm Cholinergic Transmission, Locomotion And Muscle Physiology, Tommaso Meregalli
Senior Theses and Projects
No abstract provided.
P32. Altered Sensory Processing In Response To Novel Dreadd-Induced Inactivation Of Gaba In Pedunculopontine Tegmental Nucleus, Niveen Fulcher
P32. Altered Sensory Processing In Response To Novel Dreadd-Induced Inactivation Of Gaba In Pedunculopontine Tegmental Nucleus, Niveen Fulcher
Western Research Forum
Niveen Fulcher1, Cleusa De Oliveira2, & Susanne Schmid1,2
1Schulich School of Medicine & Dentistry, University of Western Ontario
2Anatomy and Cell Biology, University of Western Ontario
Altered sensory processing in response to novel DREADD-induced inactivation of GABA in pedunculopontine tegmental nucleus
Background: Sensory processing deficits are associated with certain psychiatric illnesses, such as schizophrenia and autism spectrum disorder (ASD). Sensory filtering and sensorimotor gating are evolutionarily conserved preattentive responses that filter and block redundant sensory stimuli that would otherwise overwhelm our brains. To date, underlying mechanisms of these deficits are undefined. Prepulse …
P35. Investigating The Effect Of Maternal Immune Activation On Sensory Filtering, Social Behaviour And Attention, Faraj Haddad
P35. Investigating The Effect Of Maternal Immune Activation On Sensory Filtering, Social Behaviour And Attention, Faraj Haddad
Western Research Forum
Background
Altered brain development is associated with many neuropsychiatric disorders like Autism Spectrum Disorder (ASD) and schizophrenia. Environmental insults can interfere with neurodevelopment, and a prominent example is maternal infection during pregnancy. Epidemiological studies show that children born to mothers who were infected during pregnancy display a higher risk of developing ASD and schizophrenia, and this effect is mainly due to the maternal immune response. Polyinosinic-polycytidilic acid (Poly I:C) is a double stranded RNA molecule that mimics viral markers and elicits an immune response. When injected in pregnant rodents, this model produces offspring that exhibit core symptoms of ASD and …
Comparing Consistency Of Stress And Anxiety-Related Behaviors Across Time In Zebrafish (Danio Rerio), Matthew R. Baker, Alex Goodman
Comparing Consistency Of Stress And Anxiety-Related Behaviors Across Time In Zebrafish (Danio Rerio), Matthew R. Baker, Alex Goodman
UNO Student Research and Creative Activity Fair
Animals are frequently faced with stressors in their environment that they must overcome to survive and reproduce. Across vertebrates, two distinct stress coping styles or ‘personalities’ have been observed known as proactive (bold) and reactive (shy). Animal personalities may be advantageous by limiting individual variation and balancing different trade-offs in unpredictable environments. When identifying animal personalities, behavioral phenotypes must be consistent and repeatable across contexts and time. Here we use selectively bred lines of shy and bold zebrafish, previously shown to have consistent divergent fear- and anxiety-related behaviors across contexts, to test the repeatability and consistency of these behaviors across …
Assessment Of Olfactory-Based Social Recognition: Designing A Paradigm For Marmosets, Stephanie Womack
Assessment Of Olfactory-Based Social Recognition: Designing A Paradigm For Marmosets, Stephanie Womack
UNO Student Research and Creative Activity Fair
Navigation of the social world depends largely on one’s responsiveness to social stimuli and information from a wide range of senses can be used to discriminate between individuals. Mammals use several sensory modes to communicate and respond to their surroundings, but olfaction is the dominant sense across most species. Chemosignals provide a wealth of information including sex, age, reproductive status, and individual identity. Currently, assessment of olfaction is largely limited to the habituation-dishabituation paradigm or the two-choice discrimination task used primarily in rodents. These paradigms are limited by their reliance on inherent reward of interaction with stimuli without providing additional …
The Effect Of Observing Aggressive Interactions On The Personality Traits Of Danio Rerio, Jessica L. Bargstadt
The Effect Of Observing Aggressive Interactions On The Personality Traits Of Danio Rerio, Jessica L. Bargstadt
UNO Student Research and Creative Activity Fair
Social animals are easily influenced by other members of their species. Individuals will adjust their behaviors and actions both when observing another conspecific and when interacting with one. The effect that these social experiences can have on an individual vary in both magnitude and permanence, depending on the type of experience. We seek to examine the lasting effect that observing an aggressive interaction can have on the personality type of an individual.
Personality traits of Danio rerio will be examined in a novel environment setting in which the subject’s movements are recorded to determine their reactivity or proactivity in response …
Neurotensin Nts1 And Nts2 Receptor Agonists Produce Anxiolytic-Like Effects In The 22-Khz Ultrasonic Vocalization Model In Rats, Floyd F. Steele Iii, Shannon C. Whitehouse, Jacob S. Aday, Adam J. Prus
Neurotensin Nts1 And Nts2 Receptor Agonists Produce Anxiolytic-Like Effects In The 22-Khz Ultrasonic Vocalization Model In Rats, Floyd F. Steele Iii, Shannon C. Whitehouse, Jacob S. Aday, Adam J. Prus
Journal Articles
Neurotensin is a neuropeptide neurotransmitter that interacts with multiple neurotransmitter systems, including those regulating amygdalar function, via NTS1 and NTS2 receptors. Both receptors are expressed in the amygdala and agonists for NTS1 or NTS2 receptors have exhibited anxiolytic effects in animal models. Systemic adminstration of NTS1 receptor agonist PD149163 was recently shown to reduce footshock conditioned 22-kHz ultrasonic vocalizations in rats, suggesting that PD149163 produced an anxiolytic effect. The effects that neurotensin may have or a selective NTS2receptor agonist may have on 22-kHz vocalizations has yet to be examined. The current study evaluated …
Experimental Exposure To Urban And Pink Noise Affects Brain Development And Song Learning In Zebra Finches (Taenopygia Guttata), Dominique A. Potvin, Michael T. Curcio, John P. Swaddle, Scott A. Macdougall-Shackleton
Experimental Exposure To Urban And Pink Noise Affects Brain Development And Song Learning In Zebra Finches (Taenopygia Guttata), Dominique A. Potvin, Michael T. Curcio, John P. Swaddle, Scott A. Macdougall-Shackleton
John Swaddle
Recently, numerous studies have observed changes in bird vocalizations—especially song—in urban habitats. These changes are often interpreted as adaptive, since they increase the active space of the signal in its environment. However, the proximate mechanisms driving cross-generational changes in song are still unknown. We performed a captive experiment to identify whether noise experienced during development affects song learning and the development of song-control brain regions. Zebra finches (Taeniopygia guttata) were bred while exposed, or not exposed, to recorded traffic urban noise (Study 1) or pink noise (Study 2). We recorded the songs of male offspring and compared these to fathers’ …