Closing the species gap: Translational approaches to studying sensory processing differences relevant for autism spectrum disorder.
One shared auditory protocol can make mouse, rat, and human autism data line up.
01Research in Context
What this study did
Adams et al. (2021) wrote a position paper. They asked: how can we make rodent and human autism hearing data speak the same language?
The team picked three tools. These are auditory evoked potentials, acoustic startle, and simple pitch or loudness tests. They gave step-by-step recipes so labs can run the same protocol on rats, mice, or children.
What they found
The paper does not report new data. Instead it gives a shared playbook. If labs follow it, future rodent results should line up with human numbers.
How this fits with other research
Bellon-Harn et al. (2020) and Vlaskamp et al. (2017) already show the human side. They measured M50 latency and mismatch negativity (MMN) in kids with autism. The new playbook tells animal researchers to collect the same waves so the data can be stacked side-by-side.
Cacciato-Salcedo et al. (2025) supply fresh rat data. They found sex matters: female rats had bigger, slower brain-stem responses, and autism-like rats looked different from controls. The target paper’s protocol would let those rat numbers be compared directly to the human EEG files from L et al. and Chantal et al.
Minshew et al. (2011) and Ey et al. (2011) asked for common mouse behavior tests a decade ago. Adams et al. (2021) update that call with exact auditory assays and add electrophysiology, moving from general behavior to precise sensory biomarkers.
Why it matters
If you assess sensory issues in clients with autism, this paper gives you a shopping list. You can ask university partners for the same EEG or startle files they run on rodents. Matching human and animal data speeds up drug screening and points to new auditory interventions you might trial in clinic.
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02At a glance
03Original abstract
The study of sensory phenotypes has great potential for increasing research translation between species, a necessity to decipher the neural mechanisms that contribute to higher-order differences in neurological conditions such as autism spectrum disorder (ASD). Over the past decade, despite separate advances in our understanding of the structural and functional differences within the brain of autistic and non-autistic individuals and in rodent models for ASD, researchers have had difficulty translating the findings in murine species to humans, mostly due to incompatibility in experimental methodologies used to screen for ASD phenotypes. Focusing on sensory phenotypes offers an avenue to close the species gap because sensory pathways are highly conserved across species and are affected by the same risk-factors as the higher-order brain areas mostly responsible for the diagnostic criteria for ASD. By first reviewing how sensory processing has been studied to date, we direct our focus to electrophysiological and behavioral techniques that can be used to study sensory phenotypes consistently across species. Using auditory sensory phenotypes as a template, we seek to improve the accessibility of translational methods by providing a framework for collecting cohesive data in both rodents and humans. Specifically, evoked-potentials, acoustic startle paradigms, and psychophysical detection/discrimination paradigms can be created and implemented in a coordinated and systematic fashion across species. Through careful protocol design and collaboration, sensory processing phenotypes can be harnessed to bridge the gap that exists between preclinical animal studies and human testing, so that mutually held questions in autism research can be answered. LAY SUMMARY: It has always been difficult to relate results from animal research to humans. We try to close this gap by studying changes in sensory processing using careful protocol design and collaboration between clinicians and researchers. Sensory pathways are comparable between animals and humans, and are affected in the same way as the rest of the brain in ASD. Using changes in hearing as a template, we point the field in an innovative direction by providing a framework for collecting cohesive data in rodents and humans.
Autism research : official journal of the International Society for Autism Research, 2021 · doi:10.1002/aur.2533