Food Deprivation
Food Deprivation - Related Videos
11:16
Progressive-ratio Responding for Palatable High-fat and High-sugar Food in Mice
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Cited by 70 •
2012
The present report details the protocol employed to measure the rewarding effects of high-fat food in mice using a progressive ratio operant conditioning task.
02:33
Assessing Atmospheric Pressure Plasma Treatment in Glucose-Deprived Neuroblastoma Cells
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2025
Source: Yan, X., et. al., New Application of an Atmospheric Pressure Plasma Jet as a Neuro-protective Agent Against Glucose Deprivation-induced Injury of SH-SY5Y Cells. J. Vis. Exp. (2017)The video demonstrates the neuroprotective activity of low-dose atmospheric pressure plasma treatment in glucose-deprived neuroblastoma cells by modulating oxidative stress and enhancing cell viability.
01:13
Insufficient Sleep and Sleep Deprivation
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2024
Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being. Sleep deprivation is a more severe form of sleep loss...
12:45
Testing For Genetically Modified Foods
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2023
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Genetic modification of foods has been a controversial issue due to debated concerns over health and environmental safety. This experiment demonstrates technical understanding of how food DNA is genetically identified, allowing for educated decision making about the safety and potential dangers of using genetically modified organisms (GMOs) in food supplies. Polymerase Chain Reaction (PCR) is used to amplify food DNA...
07:50
A Method for Evaluating the Reinforcing Properties of Ethanol in Rats without Water Deprivation, Saccharin Fading or Extended Access Training
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Cited by 21 •
2017
This protocol describes a novel and efficient method to quickly initiate operant responding for ethanol in rats that, contrary to standard methods, does not require water deprivation or saccharin/sucrose fading to initiate responding.
FAQs
Reduced nutrient availability changes metabolic signals including ghrelin, leptin, and insulin. These signals influence hypothalamic circuits that coordinate hunger, energy expenditure, and motivated behavior. Their importance lies in linking the organism’s energetic state with neural control systems, allowing researchers to examine how metabolic information is translated into changes in feeding-related behavior.
Changes in metabolic signaling during food deprivation interact with reward and stress pathways rather than affecting feeding circuits alone. This interaction can alter responses to food-related cues and motivated behavior. Studying these linked systems helps clarify why limited energy availability can influence both basic feeding regulation and behaviors shaped by reward or stress.
Food deprivation modifies neural states that extend beyond hunger and energy expenditure. Through interactions among hypothalamic, reward, and stress pathways, limited nutrient availability can influence attention, learning, decision-making, and responses to food-related cues. These effects make deprivation paradigms useful for examining how metabolic conditions shape cognitive and motivational processes together.
A controlled paradigm specifies the period during which food availability is limited and considers the severity of that restriction. Researchers must evaluate both factors because different durations or levels of deprivation may produce different behavioral and neural effects. In animal studies, the design also requires careful attention to welfare while investigating energy-related mechanisms.
Researchers can assess hunger-related behavior, energy expenditure, motivated behavior, and responses to food-related cues. Depending on the research question, they may also examine attention, learning, or decision-making. Comparing these outcomes helps reveal whether limited energy availability primarily changes feeding regulation or also influences broader cognitive and motivational functions.
Food deprivation provides a controlled way to investigate how metabolic state interacts with reward and motivation. Because nutrient availability can influence responses to food-related cues and reward pathways, the paradigm supports research on feeding regulation, motivated behavior, and addiction-related behavior. It also helps connect metabolic conditions with changes in neural and behavioral responses.