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Nociception

Nociception

Nociception—the ability to feel pain—is essential for an organism’s survival and overall well-being. Noxious stimuli such as piercing pain from a sharp object, heat from an open flame, or contact with corrosive chemicals are first detected by sensory receptors, called nociceptors, located on nerve endings. Nociceptors express ion channels that convert noxious stimuli into electrical signals. When these signals reach the brain via sensory neurons, they are perceived as pain.

Autism Spectrum Disorder

Autism Spectrum Disorder

Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.

Pain

Pain

Pain serves as a critical warning signal that alerts the body to potential or actual harm. When mechanical pressure on the skin is intense, such as from a sharp pinch, the sensation transitions from touch to pain. Similarly, extreme temperatures, like a hot pot handle, convert the sensation of heat into pain. Pain can also result from overstimulation of other senses, such as blinding light, loud noise, or the intense heat from habañero peppers. This ability to sense pain is essential for...

Blood and Nerve Supply to the Bones

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Nutrient Artery
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Analgesia and Pain Management

Analgesia and Pain Management

Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...

Sensory Functions of the Skin

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There are two main categories of receptors on the skin: capsulated and non-capsulated. The non-capsulated ones are mainly the pain receptors. The capsulated ones can be further categorized based on the...

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Related Experiment Video

Updated: Nov 17, 2025

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Published on: April 22, 2015

[Nociception pain and autism].

Lucien Ruelle-Le Glaunec¹, Perrine Inquimbert¹, Sylvain Hugel²

¹CNRS, 5 rue Blaise-Pascal, 67000 Strasbourg, France - Université de Strasbourg, Institut des neurosciences cellulaires et intégratives, UPR 3212, 8 allée du Général Rouvillois, F-67000 Strasbourg, France.

Medecine Sciences : M/S

|February 16, 2021

Summary

This summary is machine-generated.

Autistic individuals often have sensory issues, particularly with pain perception. Animal models are crucial for understanding cellular and molecular changes in pain processing related to autism.

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Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

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Electrophysiological Measurements and Analysis of Nociception in Human Infants

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Area of Science:

Neuroscience
Autism Spectrum Disorder Research
Pain Perception Studies

Background:

Autism Spectrum Disorder (ASD) is frequently associated with sensory processing anomalies.
Pain perception (nociception) alterations are of significant interest due to comorbidities increasing pain exposure in autistic individuals.
Existing research on pain sensitivity in autism lacks consensus, highlighting the need for further investigation.

Purpose of the Study:

To investigate potential alterations in the nociceptive system at cellular and molecular levels in an animal model of autism.
To reduce variability inherent in human studies by utilizing a controlled animal model.
To provide a clearer overview of nociception in the context of autism.

Main Methods:

Utilizing a validated animal model that mimics aspects of autism.
Conducting cellular and molecular analyses of the nociceptive system.
Employing experimental paradigms to assess pain responses.

Main Results:

The study identified specific cellular and molecular alterations within the nociceptive system in the animal model.
Results indicate potential differences in how the model organism processes pain signals compared to controls.
Data suggests a complex interplay between autism-related factors and nociceptive pathways.

Conclusions:

Animal models offer a valuable approach to dissecting the complexities of nociception in autism.
Findings provide a foundation for understanding the biological underpinnings of pain processing differences in autism.
Further research is warranted to translate these findings to human subjects and clinical implications.