Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"Motivated behavior"”.
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Functional Brain Networks Underlying Anticipation in Motivated Behavior
… Studies have shown that anticipation influences behavioral performance, learning, and memory, and studies implicate reward-related brain circuitry. However, few studies have investigated the neural underpinnings of anticipation on a brain-wide network scale . In this set of experiments, I take an …
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Biologically inspired computational neural models for motivated behavior, learning, and memory
… fewer studies have explored the creation of motivated autonomous agents. The integration of neurobiological principles into AI, such as mechanisms involved in dopaminergic reward learning circuits, has been crucial for advancing more natural and biologically plausible forms of AI. The goal of …
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Behavioral and Electromyographic Comparisons of Neuroleptic and Opiate Catalepsy in Rats
… haloperidol produce two distinct and contrasting behavioral states, which can be thought of as exaggerated, isolated, and simplified forms of organized adaptive behavioral states functioning as components of normal motivated behavior. Haloperidol ca
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Pathology and Motivation in Players of Grand Theft Auto IV
<p>Intrinsically motivated behavior is defined as a behavior that is performed for pure enjoyment (Ryan, Rigby & Przybylski, 2006). Video game playing is a form of intrinsically motivated behavior (Frederick & Ryan, 1995). Popular media commonly claims the act of playing video games leads …
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Physiological measures differentiate distinct domains of immanent justice reasoning
… an individual's world-view influences his/her behavior when confronted with injustice. The purpose of the present study was to examine the utility of multiple continual physiological measurements as predictors of just-world motivated behavior such as immanent justice reasoning (IJR) in a …
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The Behavioral Effects of Temporary Inactivation of the Lateral Habenula on Free Feeding
… signaling, and pronounced role in drug-related motivated behaviors. Here I report that inactivation of the LHb attenuated feeding of deprived animals on a sweetened-fat diet, though impacted neither sated animals nor animals consuming a standard chow diet. However, inactivation did produce a …
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Motivated Agents
… is a powerful force that drives human action and behavior. It drives us to pursue our goals and aspirations and can significantly impact our decision-making processes. In the field of artificial intelligence, the most common method for modeling human action and decision-making is through …
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Effects of Ventromedial Hypothalamic Lesions on Food-Reinforced Fixed Ratio Responding
… under which these opposite effects on "food-motivated" behavior occur. Rats with ventromedial lesions made with steel electrodes showed a decrease relative to controls in lever pressing on a fixed ratio schedule. This effect was also seen in rats which had extensive pretraining on the fixed …
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Validating non-motivated methods and equipment for studying mouse olfactory behavior
<p>Mouse olfactory behavior has traditionally been difficult to assess due, in part, to the expensive nature of behavioral equipment and the lengthy process of training animals. The present study aims to validate a new behavioral paradigm requiring no prior animal training using existing liquid …
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Construct Deficiency in Avoidance Motivation: Development and Validation of a Scale Measuring Vigilance
… neglected to account for context in models of motivated behavior. Effective avoidance has systematically been unassessed in motivation research. Social cognitive theory was used to define an effective avoidance motivational trait, vigilance, as an antecedent to effective regulatory behaviors …
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Contributions of Reward Identity and Time Prediction Errors to Pavlovian Learning
… from one’s expectations. Some models of PE-motivated behavior and PE-relevant brain activity represent the US as a single quantitative variable for outcome value, and that learning therefore only occurs when outcome value differs from expectations. There is growing evidence to suggest that …
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Investigation of Glutamatergic Circuitry Underlying Copulatory Reward in Female Syrian Hamsters
Sex behavior in female mammals is known to involve rewarding consequences that increase the motivation to copulate. I have utilized female hamsters as a model to examine the underlying circuitry and mechanisms of this natural reward. Despite a wealth of information detailing dopaminergic …
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A Molecular Mechanism for Endocytic Recycling of the M5 Muscarinic Acetylcholine Receptor
… is required for the control of movement and motivated behavior by the basal ganglia, and MR dysfunction may contribute to schizophrenia, Alzheimer's disease, and motor disorders. Functional studies of the muscarinic receptors have been hampered by a lack of selective pharmacology, poor …
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Cannabinoid Modulation of Reinforcement Maintained by Stimulation of the Medial Forebrain Bundle in C57Bl/6J Mice
… have implicated cannabinoid receptors in reward-motivated behavior. One way to assess these preclinical effects of cannabinoids is intracranial self-stimulation (ICSS), where an animal performs a response to receive electrical stimulation of a specific brain area or circuit known to be involved …
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A Hedonic and Eudaimonic Model of Customer Well-being through Integrated Resort Experiences
… four dimensions of IRBE (sensory, affective, behavioral, and intellectual) have differing effects on needs satisfaction dimensions (autonomy, competence, and relatedness). Specifically, affective and intellectual IRBE is found to impact all needs satisfaction positively while relative impacts …
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Alcohol-induced activation of the mesocorticolimbic dopaminergic system and its modulation by energy drinks and caffeine: neurochemical, behavioral, and immunohistochemical analysis
… critically involved in reward processing and motivated behavior. During adolescence, this system is characterized by high vulnerability, which may lead to abnormal maturation in adulthood, resulting in impulsivity and an increased risk of compulsive drug use. Accordingly, this project was …
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Learning structured representations for perception and control
… agents that learn to produce goal-directed behavior given sensations. I present models and algorithms that learn from raw observations and will emphasize on minimizing their sample complexity and number of training steps required for convergence. To this end, I introduce hierarchical …
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Representations of Reward and Movement in Drosophila Dopaminergic Neurons
… is known to influence both immediate and future behavior, motivating and invigorating an animal's ongoing movement but also serving as a reinforcement signal to instruct learning. Yet it remains unclear whether this dual role of dopamine involves the same dopaminergic pathways. Although …
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The Regulation of Effort Exertion by the Nucleus Accumbens Core
… and manipulations that impact more effortful behaviors to a greater extent have consistently been interpreted as demonstrating a decrease in the willingness to exert effort. For decades, in numerous studies, these effects have been consistently observed following manipulations that disrupt a …
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Interrogation of the neural mechanisms by which male and female rats assess aversive and mixed valence stimuli in learning and performing a task
… contrast, conditioned taste aversion (CTA) is a behavioral paradigm in which a palatable substance is paired with an aversive visceral experience, generally an injection of a nausea-inducing agent such as lithium chloride (LiCl), to produce aversion to the substance at subsequent exposure. CTA …