Approaches to Understanding Multisensory Dysfunction in Autism Spectrum Disorder.

Area of Science:

• Neuroscience
• Autism Spectrum Disorder Research
• Sensory Processing

Background:

• Abnormal sensory responses are a core symptom of autism spectrum disorder (ASD), impacting both individual sensory domains and multisensory integration.
• Difficulties in multisensory processing are increasingly recognized as a key area of focus in ASD research.
• Current treatments like "sensory integration" lack robust evidence, highlighting the need for a deeper understanding of underlying mechanisms.

Purpose of the Study:

• To review sensory and multisensory processing difficulties in ASD across species.
• To discuss the neurobiology of multisensory integration, from larger mammals to rodent models.
• To explore emerging research on multisensory processing in genetic mouse models of autism risk.

Main Methods:

• Review of existing laboratory findings on sensory and multisensory processing in ASD.
• Examination of neurobiological studies on multisensory integration in mammals.
• Analysis of behavioral studies in rodent models, including genetic mouse models related to autism.

Main Results:

• Altered sensory and multisensory processing is a common finding in individuals with ASD.
• Multisensory deficits in ASD are observable and can be studied using psychophysical and behavioral paradigms.
• Rodent models provide a tractable system for investigating the neurobiological underpinnings of multisensory dysfunction in ASD.

Conclusions:

• Translational research using multisensory paradigms across species, from humans to mice, is advantageous for understanding ASD.
• Rodent experimental systems hold significant potential for uncovering novel therapeutic targets for ASD-related sensory processing issues.
• Understanding multisensory processing deficits is crucial for developing effective interventions for autism spectrum disorder.