Pheromone Stimulation
Pheromone Stimulation - Related Videos
09:31
Imaging Pheromone Sensing in a Mouse Vomeronasal Acute Tissue Slice Preparation
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Cited by 15 •
2011
In mice, the ability to detect pheromones is principally mediated by the vomeronasal organ (VNO). Here, an acute tissue slice preparation of VNO for performing calcium imaging is described. This physiological approach allows observations of subpopulations and/or individual neurons in a living tissue and is convenient for receptor-ligand identification.
07:25
Measuring Physiological Responses of Drosophila Sensory Neurons to Lipid Pheromones Using Live Calcium Imaging
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Cited by 4 •
2016
The forelegs and proboscis of Drosophila contain a rich repertoire of gustatory sensory neurons. Here, we present a method using calcium imaging to measure physiological responses from sensory neurons in the foreleg and proboscis of live flies upon exogenous application of a gustatory pheromone.
06:49
Volatile Sex Pheromone Extraction and Chemoattraction Assay in Caenorhabditis elegans
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Cited by 1 •
2024
This protocol establishes methods for extracting and quantifying responses to the volatile sex pheromone in C. elegans, providing tools to study chemical communication and navigation trajectory.
07:31
Using an Adapted Microfluidic Olfactory Chip for the Imaging of Neuronal Activity in Response to Pheromones in Male C. Elegans Head Neurons
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Cited by 20 •
2017
The use of an adapted "olfactory chip" for the efficient calcium imaging of C. elegans males is described here. Studies of male exposure to glycerol and a pheromone are also shown.
11:02
Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network
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Cited by 17 •
2010
In this article, we examine the methodology and considerations relevant to the combination of TMS and fMRI to examine the effects of brain stimulation on the default network.
FAQs
Detection begins when pheromone molecules interact with sensory receptors, initiating signals that are processed by neural circuits. Researchers can then examine changes in brain activity alongside physiological or behavioral responses. Comparing these measurements helps connect an external chemical cue with internal neural processing and determine how sensory information contributes to motivation, social behavior, or reproductive responses.
Species specificity helps explain why a chemical cue can produce a response in one animal but not necessarily another. Neural and behavioral effects must therefore be interpreted within the biological context of the species being studied. This principle allows experiments to distinguish chemical communication mechanisms from general responses to unfamiliar or nonspecific odor cues.
The effects may appear at several levels, including altered brain activity, hormonal changes, physiology, and observable behavior. These outcomes are related but not interchangeable: a neural response may occur without an obvious behavioral change, while hormonal or physiological effects may help explain later social or reproductive behavior. Measuring multiple levels provides a more complete view of the response.
By linking controlled chemical cues with neural, hormonal, and behavioral measurements, this approach reveals how sensory information may influence motivational states and endocrine function. It is especially useful in animal models involving reproduction, stress, and social behavior. The resulting comparisons can clarify how brain circuits coordinate chemical communication with broader physiological regulation.
A study may present purified chemical compounds, biological secretions, or controlled odor cues, depending on the research question. These options allow investigators to compare responses to a defined molecule with responses to a more complex biological signal. Careful control of the presented cue is important when attributing neural, hormonal, or behavioral effects to pheromone exposure.
Researchers can assess neural activity, hormonal responses, physiological changes, and behavior after exposure. Using more than one measurement helps determine whether the cue affects sensory processing alone or also produces downstream changes in motivation, reproduction, stress, or social interaction. The selected outcomes should match the neural circuit and biological process under investigation.
This approach is useful when investigators want to connect chemical communication with sensory processing and species-specific behavior. It supports studies of reproductive signaling, social interaction, stress responses, and neuroendocrine regulation in animal models. Controlled stimulation also provides a way to examine how a defined external cue changes brain and body function under experimental conditions.
Researchers can vary the form of the presented cue, such as a purified compound, biological secretion, or controlled odor, and then compare neural, hormonal, physiological, or behavioral outcomes. Differences between conditions may indicate whether responses depend on a particular chemical signal or on a broader biological mixture, helping refine conclusions about sensory and social communication.