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 35 for “"food deprivation"”.
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The effect of food deprivation on cigarette smoking in females
Studies have shown that food deprivation is associated with increases in the self-administration of nicotine and other substances in laboratory animals. However, little is known about the effects of food deprivation on substance use in humans. The purpose of the present study was to compare smoking …
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Effects of morphine, d-amphetamine, and food deprivation on temporally organized behavior
Two experiments examined the effects of morphine and d-amphetamine on behavior that was temporally organized under several schedule arrangements. Two body weights were assessed for each experiment. Experiment 1 made use of fixed-interval (FI) schedules, the peak procedure, and a two-key …
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The effect of preweaning infantile food deprivation on hoarding in adult rats
… refers to the active storing and accumulation of food or other objects by an animal. Hoarding is often experimentally defined as the act of transporting food or objects, from some area outside the Ss home cage, back to the home cage. A typical hoarding experiment involves manipulation of an …
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Effects of Chronic Sleep and Food Deprivation on In Vivo Levels of Prepro-Hypocretin (PPH)
… determine the effect of chronic (72-hour) sleep deprivation and (48-hour) food deprivation on preprohypocretin (PPH), which is the precursor for the hypocretin peptides. PPH levels were visualized and quantified via in situ hybridization. A three-factor ANOVA ( group x dorsal/ventral x …
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Effects Of Food Deprivation On Blood Lipid Concentration And Composition In Steller Sea Lions (eumetopias Jubatus)
… during this time they refrain from ingesting food for a period of 12-43 days. Fasting, while undertaking an extremely energetically demanding activity (breeding and pupping), requires specific physiological adaptations. This study examined the physiological response to fasting of two age …
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Energy Reserves in Native Freshwater Mussels (Bivalvia:Unionidae) with and without Attached Zebra Mussels: Effects of Food Deprivation
This project evaluated the feasibility of salvaging zebra mussel-infested freshwater mussels from their native habitat by determining 1) how zebra mussel infestation affects unionid feeding and body condition, 2) how starvation in quarantine affects body condition of unionids, and 3) what feeding …
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A TALE OF TWO NEUREXINS: NRX-1 AND NLR-1 FACILITATE FUNCTION OF MONOAMINE CIRCUITS AND FORAGING BEHAVIORS
… that nrx-1 controls the behavioral response to food deprivation in an isoform-specific manner, with the short γ-isoform of nrx-1 controlling the initiation/early responses to food deprivation in part via octopamine signaling. Meanwhile the long α-isoform controls the maintenance response to food …
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Lesioning of the Nucleus of the Hippocampal Commissure Followed by Food Deprivation Stress in Birds Demonstrates Simultaneous Involvement in both the Hypothalamo-Pituitary-Adrenal Axis and the Hypothalamo-Pituitary-Thyroid Axis
… neurons and also these neurons respond to early food deprivation stress significantly prior to the paraventricular nucleus (PVN), the major driving nucleus of the classic neuroendocrine HPA axis. The objective of this study was to perform a knock down of the NHpC via electrolytic lesioning, thus …
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Effects of Deprivation and Testing Procedures on Preference for Stimuli Correlated with Food Reinforcement Under Higher Deprivation Conditions in Mice
… appear to prefer stimuli correlated with food reinforcement under higher food deprivation levels relative to stimuli correlated with food under lower deprivation levels. This has led some researchers to assume a general relation between food deprivation level and preference regardless of …
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Nutritional Regulation of Serum Insulin-Like Growth Factor-I Concentration in Cattle
… the blood. In the second study, the effects of food deprivation on serum IGF-I concentration in steers and the underlying mechanism were determined. It was found that food deprivation decreased serum IGF-I concentration and that this decrease was not due to increased IGF-I degradation in serum. …
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The Influence of Sustained CB1 Blockade During Adolescence on Breakpoints in a Progressive-ratio Paradigm
… adolescence and allowed unrestricted access to food. Control groups were treated with vehicle during the same developmental period and allowed either unrestricted access to food or were pair-fed with a member of the SR-treated group. Motivation to work for food was measured in progressive-ratio …
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A case study of Non-Governmental Organisations' (NGOS) responses to food insecurity in Matabeleland, Zimbabwe
… has manifested in various aspects, particularly food deprivation. This study focuses on the response of two Non-Governmental Organisations to food insecurity in the rural Matabeleland provinces. The research aims are to: define poverty and food insecurity; understand the reasons behind the food …
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The Maladaptive Response of Adipose Tissue to High Fat Diet Feeding
… to occur in multiple organs during periods of food deprivation. With this in mind, many early investigators saw the importance of adipose tissue, though its true importance was not recognized till relatively recently.
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The effect of prey availability on metabolism and activity in the tarantula <i>phormictopus cancerides</i> (araneae: theraphosidae)
… examined the effect of different periods of food deprivation on resting metabolic rates (RMR) and foraging activities in tarantulas (<em>Phormictopus cancerides</em>). Juvenile tarantulas were separated into two feeding groups and fed once either every 5 or 30 days. Monthly feeding trials …
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Effect of contextual variables on mealtime problem behavior in the natural environment
… and increasing the amount and variety of food accepted. To date, two published studies have examined the effects of specific contextual variables (food type and texture or session pre-feeding) on mealtime behavior. Research with problem behavior occurring outside of mealtime suggests that …
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Auditory P300 In College-Aged Females At-Risk for Eating Disorders
… potentials (ERPs) to elucidate the effects of food intake and glucose metabolism on brain function and performance on cognitive tasks. Minor food deprivation decreases P300 amplitude and increases P300 latency, indicators of impaired cognitive performance. Short-term memory disruptions …
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A Preoptic Neurocircuit that Regulates Blood Glucose Homeostasis
… state of the organism. When faced with food deprivation, certain endotherms engage in torpor, a behavior in which body temperature and metabolic rate are substantially depressed to improve the probability of organismal survival. Induction of torpor is regulated by anteroventral POA …
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The relationship between employment status of the mother, household hunger and nutritional status of children in Sekhukhune District, Limpopo Province
… Development, 2008).). South Africa has adequate food supplies to feed the entire population at the national level (Labadarios et al., 2011; du Toit et al., 2011); however, there is evidence of under-nutrition caused by lack of purchasing power, and not a shortage of food (Rose and Charlton, …
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Effect of variation in nestling hunger levels on the begging behavior of nestlings and the provisioning behavior of adult American Kestrels
… nestlings in six nests were deprived of food for 24 hours and those in the other six nests were fed until satiated. At each nest, I alternated control (no treatment) and treatment (fed or food-deprived) days (control, treatment, control, and treatment) over a four-day period to minimize …
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Essays on Physiological and Psychological Influences of Economic Preferences
… prefer. The first paper finds that short-term food deprivation, contrary to common assumptions, improves decision rationality. Hungry participants showed less distorted probability assessments, fewer decision errors, and greater emotional self-regulation, while their willingness to cooperate …
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