Related Experiment Video
Updated: Feb 27, 2026
10:27
Training Synesthetic Letter-color Associations by Reading in Color
Published on: February 20, 2014
23.4K
Abnormal sensory experiences, synaesthesia, and neurodevelopmental disorders
1Institute of Health and Environmental Research, P.O. Box 18442, Cleveland, OH, 44118, USA. keithfluegge@gmail.com.
Journal of Autism and Developmental Disorders
|July 7, 2017
Summary
Autism spectrum disorder (ASD) may involve sensory processing differences linked to environmental exposure to nitrous oxide (N2O). This pollutant may alter brain chemistry, potentially explaining sensory sensitivities in ASD.
Area of Science:
- Neuroscience
- Environmental Health
- Developmental Psychology
Background:
- Autism spectrum disorder (ASD) is increasingly linked to sensory processing abnormalities.
- Environmental factors are emerging as significant risk factors for ASD.
- Nitrous oxide (N2O) is an air pollutant with potential neurochemical effects.
Discussion:
- Chronic, low-level exposure to N2O in animal models affects dynorphin and serotonin pathways.
- These neurochemical changes are associated with altered consciousness and synesthesia.
- Such alterations could underlie the sensory dysregulation observed in ASD.
Key Insights:
- N2O exposure may be an environmental risk factor contributing to sensory processing issues in ASD.
- The neurochemical mechanisms involving dynorphin and serotonin are potential mediators.
- Abnormal sensory sensitivity in ASD warrants investigation into N2O's role.
Outlook:
- Further research is needed to confirm the link between N2O exposure and sensory abnormalities in ASD.
- Investigating N2O's impact on neurodevelopmental pathways is crucial.
- Understanding environmental triggers like N2O can inform ASD prevention and intervention strategies.
Related Concept Videos
01:27Synesthesia
777
Synesthesia is a remarkable condition where stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway. People with synesthesia experience a blending or crossing of their senses, such as sight and sound, leading to cross-modal sensations. In this condition, the stimulation of one sense, such as hearing a number or musical note, triggers an experience of another sense, like sensing a specific color, taste, or smell. People...
777
01:19Autism Spectrum Disorder
1.4K
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.
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.
1.4K
01:28Disorders of the Nervous Tissue
2.8K
Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
2.8K
01:26Positive Symptoms Schizophrenia: Hallucinations and Delusions
760
Schizophrenia is a complex psychiatric disorder characterized by a range of symptoms that significantly impact cognition, behavior, and emotional regulation. Among these, the positive symptoms stand out as they involve the addition or exaggeration of normal mental functions, deviating markedly from typical behavior and perception. Hallucinations and delusions are prominent positive symptoms, each profoundly affecting the individual's experience of reality.
Hallucinations
Hallucinations in...
Hallucinations
Hallucinations in...
760
01:30Positive Symptoms of Schizophrenia: Hallucinations and Delusions
819
Schizophrenia is a complex mental health disorder that can manifest with various positive symptoms, including thought, movement, and behavior disorders. These symptoms significantly disrupt cognitive and motor functions, leading to profound effects on an individual's ability to engage with the world.
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes...
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes...
819
01:27Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
2.2K
Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
2.2K