Taste Sensation
Taste Sensation - Related Videos
11:32
Perspectives on Sensation and Perception
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University The study of sensation—how signals are transduced from sensory organs, like the eyes—and perception—how the brain interprets these messages—has a rich history dating back to the 19th century, when great strides were made in understanding the properties of light and how they relate to the visual system. Importantly, such sensory and perceptual processes determine what we see, feel, taste, and hear in our surroundings. However, many...
07:54
Design, Fabrication, and Administration of the Hand Active Sensation Test (HASTe)
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Cited by 1 •
2015
The Hand Active Sensation Test (HASTe) is a valid and reliable measure of haptic performance, which has been used successfully to identify impaired haptic touch in individuals with stroke. The purpose of this paper is to describe the design, fabrication and administration of the HASTe.
08:39
Operant Sensation Seeking in the Mouse
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Cited by 27 •
2010
In this protocol we describe a method of operant learning using sensory stimuli as a reinforcer in the mouse. It requires no prior training or food restriction, and it allows the study of motivated behavior without the use of a pharmacological or natural reinforcer such as food.
01:21
Sensation
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2024
Sensory receptors are specialized neurons that respond to specific types of external stimuli, initiating the process known as sensation. This occurs when sensory input, such as light entering the eye, is detected by these receptors, causing chemical changes in the cells of the retina. These cells then convert the sensory stimulus into action potentials that are transmitted to the central nervous system, a process termed transduction. Absolute thresholds can quantify the sensitivity of sensory...
06:32
Electrophysiological Recording From Drosophila Labellar Taste Sensilla
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Cited by 28 •
2014
This protocol describes extracellular recording of the action potential responses fired by labellar taste neurons in Drosophila.
FAQs
Tastants must first dissolve in saliva before they can interact with receptor cells inside taste buds. This chemical interaction initiates electrical signaling in those cells, creating the first stage of communication between a food-derived stimulus and the nervous system. The process therefore depends on both the tastant’s presence in solution and the receptor cells’ ability to respond.
Cranial nerves carry electrical signals generated by taste receptor cells from the taste buds toward the brain. This pathway links activity at the sensory receptors with the brain’s interpretation of taste information. Studying the pathway helps biology distinguish the initial detection of a dissolved chemical from the later neural processing that produces a recognized taste perception.
The brain interprets taste information together with signals associated with smell and texture, rather than treating taste as an isolated experience. This integration contributes to the overall sensory evaluation of food. It also helps explain why a study of taste sensation can address feeding behavior and food perception beyond the activity of taste receptor cells alone.
Taste sensation provides biological information that helps organisms evaluate nutrients and avoid potentially harmful substances. Perceptions such as sweet, salty, sour, bitter, and umami can therefore contribute to decisions about whether food is acceptable and may influence feeding behavior. This connection makes taste sensation relevant to both sensory biology and the regulation of food intake.
A useful sequence begins with tastants dissolving in saliva, continues with their interaction with receptor cells in taste buds, and follows the resulting electrical signals through cranial nerves to the brain. Researchers can then consider how the brain integrates this information with smell and texture. Tracing these linked stages connects chemical detection to sensory interpretation and behavior.
Taste sensation is relevant to nutrition because it helps organisms evaluate food and influences feeding behavior. Research in this area can therefore examine how sensory information relates to nutrient acceptance or avoidance of potentially harmful substances. The topic also supports broader studies of appetite, where taste contributes to the biological factors that regulate eating.
Studying the pathway from taste-bud receptor cells to brain interpretation provides a framework for investigating sensory disorders. Researchers can consider whether an issue concerns chemical detection, electrical signaling, communication through cranial nerves, or the integration of taste with smell and texture. This organization helps relate altered taste perception to specific stages of sensory processing.
Knowledge of taste sensation can support the development of foods or treatments designed to modify taste perception. Such work can focus on how tastants interact with receptor cells and how resulting information is interpreted alongside smell and texture. The applications extend the biological study of taste into practical efforts involving food design, nutrition, appetite, and sensory disorders.