Hyponeophagia Test
Hyponeophagia Test - Related Videos
05:52
Hyponeophagia: A Measure of Anxiety in the Mouse
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Cited by 39 •
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Mice and rats, due to their innate cautiousness, are initially slow in consuming a novel food, particularly in a novel place. This hyponeophagia can readily be measured in the laboratory, even though laboratory animals are much less anxious than their wild...
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Anxiety is a commonly observed behavioral disorder that stems from fear. It is described as increased restlessness, or unpleasant feelings of fear over anticipated events. Experimenters often use rodent models to better understand anxiety disorders in humans. They use different paradigms, like exposing rodents to bright spaces or loud sounds, which are known to induce fear. These tests combined with other interventions such as surgery or drug-administration may assist researchers in pinpointing...
07:58
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Cited by 10 •
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Here, we present a protocol to use a curvelet transform-based, open-source MATLAB software tool for quantifying fibrillar collagen organization in the extracellular matrix of both normal and diseased tissues. This tool can be applied to images with collagen fibers or other types of line-like structures.
09:30
Microbial Control and Monitoring Strategies for Cleanroom Environments and Cellular Therapies
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Cited by 2 •
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The protocol summarizes the best practices to minimize microbial bioburden in a cleanroom environment and includes strategies such as environmental monitoring, process monitoring, and product sterility testing. It is relevant for manufacturing and testing facilities that are required to meet current good tissue practice standards and current good manufacturing practice standards.
11:34
Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
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Cited by 7 •
2017
This method aims at locating vertical subsurface defects. Here, we couple a laser with a spatial light modulator and trigger its video input to heat a sample surface deterministically with two anti-phased modulated lines while acquiring highly resolved thermal images. The defect position is retrieved from evaluating thermal wave interference minima.
FAQs
Feeding motivation can alter performance independently of anxiety-related behavior. An animal with reduced appetite may approach or consume the unfamiliar food less readily, while differences in general health can produce similar effects. Researchers therefore interpret approach latency, eating latency, and consumption together with appetite, locomotion, and health measures to distinguish emotional responses from changes in motivation or physical condition.
These measures capture different stages of the response to unfamiliar food. Approach latency reflects reluctance to move toward the food, eating latency reflects hesitation before consumption, and the amount eaten indicates sustained acceptance. Considering the measures together gives a broader behavioral profile than relying on a single endpoint, helping researchers identify changes in avoidance, initiation, or consumption.
Exposure or familiarization can reduce reluctance to the food, so changes across testing may reflect altered novelty responses rather than a permanent change in feeding behavior. Comparing behavior before and after familiarization helps researchers examine how experience influences approach and consumption. This is especially relevant when evaluating emotional regulation, because reduced hesitation may indicate adaptation to novelty.
The procedure presents an animal with a novel, palatable food and records its behavioral response. Relevant observations include the time required to approach the food, the time before eating, and the amount consumed. These measurements allow groups or exposure conditions to be compared while preserving separate information about initial hesitation and subsequent feeding.
Appetite, locomotion, and general health measures provide essential context for the food-related behavior. Appetite helps indicate whether consumption reflects feeding motivation, locomotion helps identify reduced movement that could lengthen approach times, and health assessment helps reveal physical factors affecting performance. Including these measures supports a more cautious interpretation of anxiety-related differences between experimental groups.
Researchers use the assay to evaluate emotional regulation, compare anxiety-like behavior across experimental groups, and examine responses to stress or anxiolytic compounds. Differences in approach, eating latency, or consumption can indicate altered reactions to novelty, but interpretation depends on the accompanying motivation and health measures. The test therefore contributes behavioral evidence within broader psychological and neuroscience experiments.