Anterior Touch
Anterior Touch - Related Videos
02:37
Touch Habituation Assay: A Method to Study Non-Associative Learning in C. elegans
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2023
This video introduces the touch habituation assay, a C. elegans behavioral method of assessing mechanosensation and quantifying time to habituation.
02:26
Responses to Gravity and Touch
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2020
Gravitropism: Plant Responses to Gravity Higher plants sense gravity using statocytes, cells found near the vascular tissue in shoots, and in the root cap columella in roots. Statocytes contain starch-filled organelles called statoliths. The statoliths settle, or sediment, at the bottom of the statocyte in the direction of gravity. Statolith sedimentation triggers a signaling cascade, resulting in the asymmetrical distribution of the plant hormone auxin across root and shoot tips. This...
03:24
Anterior Eye Segment Dissection: A Method to Isolate Cornea Bearing Anterior Segment from Porcine Eye
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2025
In this video, we demonstrate the dissection of the cornea-bearing anterior segment of the porcine eye. The isolated segment can be used for organ culturing to study the pathophysiology of eye disorders.
03:57
Anterior Eye Segment Culturing: A Method to Culture Cornea Bearing Anterior Segment of Porcine Eye
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2025
In this video, we demonstrate the culturing method of a cornea-bearing anterior eye segment from a porcine eye. This culture system serves as an experimental model to study eye injuries.
09:41
Performing and Processing FNA of Anterior Fat Pad for Amyloid
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Cited by 28 •
2010
Fat pad aspiration is a preferred, minimally invasive, and low cost approach as compared to other methods to detect amyloid for diagnosis of systemic amyloidosis. This video article demonstrates a procedural outline for performing fat pad aspiration with appropriate processing of the specimen for the optimal diagnostic outcome.
FAQs
The response depends on a linked sequence: specialized touch-receptor neurons detect gentle anterior contact, transmit information into neural circuits, and those circuits initiate backward locomotion. This arrangement lets investigators examine sensory detection together with the neural processing that converts a mechanical stimulus into an organized behavioral reaction, rather than treating movement as an isolated output.
Backward locomotion provides an observable outcome of the circuit's response to anterior stimulation. Because the animal moves away from contact, the assay connects the location of a mechanical input with a directionally appropriate behavior. This makes the response useful for examining how sensory information is translated into coordinated movement in C. elegans.
In this context, mechanotransduction refers to the biological process linking physical contact with neural signaling and behavior. Anterior-touch studies use that link to investigate how a mechanical stimulus is detected by touch-receptor neurons and passed through neural circuits. The resulting behavioral response offers a functional readout of this sensory pathway in a living animal.
An anterior-touch assay can provide more than a simple behavioral outcome. It can assess sensory detection, neuronal signaling, and behavioral plasticity, meaning changes in the response under different genetic or environmental conditions. These dimensions allow investigators to examine how sensory and circuit function vary with biological or environmental context.
C. elegans is useful here because the response can be studied in a living animal while connecting a visible behavior to specialized neurons and neural circuits. The same experimental framework therefore supports investigation at several biological levels, from stimulus detection to neural signaling and behavioral change, without reducing the phenomenon to a single measurement.
Researchers can use anterior-touch assays to examine genetic or environmental effects by evaluating how those factors influence the response. Changes in the assay outcome may provide evidence that sensory detection, neuronal signaling, or behavioral plasticity has been affected. This makes the paradigm relevant for linking biological context with measurable behavior in nematodes.