Head Touch Response
Head Touch Response - Related Videos
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...
02:54
Escape Response Assay: A Method to Study the Response of Zebrafish Larva to Touch Stimuli
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2023
This video describes the touch-evoke response assay, which measures the response of the zebrafish larva to touch stimuli.
09:40
Using Touch-evoked Response and Locomotion Assays to Assess Muscle Performance and Function in Zebrafish
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Cited by 78 •
2016
Zebrafish are an excellent model to study muscle function and disease. During early embryogenesis zebrafish begin regular muscle contractions producing rhythmic swimming behavior, which is altered when the muscle is disrupted. Here we describe a touch-evoked response and locomotion assay to examine swimming performance as a measure of muscle function.
08:01
Analysis of Skeletal Muscle Defects in Larval Zebrafish by Birefringence and Touch-evoke Escape Response Assays
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Cited by 93 •
2013
The zebrafish is now an established and powerful tool for modeling muscular dystrophies, congenital myopathies, and related neuromuscular diseases. Birefringence and touch-evoked escape behavior are two common noninvasive assays used to determine the degree of muscular disorganization and locomotive impairment of zebrafish embryos during early development.
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.
FAQs
A tactile signal does not determine the response by itself. The brain integrates incoming information with attention, the surrounding context, and prior experience, which can influence whether a person orients toward the contact, withdraws, moves the face, or reports a particular sensation. This makes the response useful for examining how psychological processing modifies sensory reactions.
Receptors in the skin and underlying tissues detect features of contact, including pressure or movement. They convert these physical changes into neural signals that travel through sensory pathways to the brain for integration. Studying this sequence helps connect the properties of tactile stimulation with observable behavior, physiological change, and conscious reports of sensation.
Behavioral changes such as orientation, withdrawal, or facial movement show how a person acts after stimulation. Physiological reactions provide another observable indication of processing, while reported sensation reveals the person’s subjective experience. Considering these response types together can help psychology researchers distinguish outward behavior from internal perception when studying touch and sensory sensitivity.
A study can present tactile stimulation to the head and then measure the resulting change in behavior, physiology, or reported sensation. Researchers may examine orientation, withdrawal, facial movement, or the participant’s description of what was felt. Relating these outcomes to the stimulation and its context allows investigators to study sensory processing and behavior.
This area can support investigations of touch perception, development, social interaction, and individual differences. Researchers can examine how people respond to physical contact and how sensory processing varies across individuals or situations. The observed responses may therefore contribute to broader psychological research on how tactile experiences relate to behavior and interpersonal processes.
Differences in orientation, withdrawal, facial movement, physiological reaction, or reported sensation can provide information about how individuals respond to tactile input. Examining these patterns may help researchers study sensory sensitivity without relying on a single type of evidence. The approach is also relevant when investigating how responses to physical contact vary between people or across contexts.