Elevated "neural noise" has been advanced as an explanation of autism and autistic sensory experiences. However, functional neuroimaging measures of neural noise may be vulnerable to contamination by recording noise. This study explored variability of electrophysiological responses to tones of different intensities in 127 autistic and 79…

During timing tasks, the brain learns the statistical distribution of target intervals and integrates this prior knowledge with sensory inputs to optimise task performance. Daily events can have different temporal statistics (e.g., fastball/slowball in baseball batting), making it important to learn and retain multiple priors. However, the rules…

Given the inclusion of sensory reactivity as a diagnostic criterion for autism spectrum disorder (ASD) and the theorized etiological role of sensory reactivity in the development of autism, adequate sensory measures of sensory reactivity in autism, including measures extending to use in infancy, are needed. Adequate sensory measurement relies on…

Sensory Over-Responsivity (SOR) is an increasingly recognized challenge among children with neurodevelopmental concerns (NDC). To investigate, we characterized the incidence of auditory and tactile over-responsivity (AOR, TOR) among 82 children with NDC. We found that 70% of caregivers reported concern for their child's sensory reactions. Direct…

Purpose: The present brain--behavior study examined whether sensory registration or neural inhibition processes explained variability in the behavioral most comfortable level (MCL) and background noise level (BNL) components of the acceptable noise level (ANL) measure. Method: A traditional auditory gating paradigm was used to evoke neural…

Researchers have examined autonomous sensory meridian responses (ASMRs) focusing on known experiencers and the nuances surrounding those occurrences. This exploratory study was developed in response to existing ASMR research focusing on individuals who were not necessarily known ASMR experiencers. My goal was to better understand whether these…

Infants at elevated likelihood of developing autism display differences in sensory reactivity, especially hyporeactivity, as early as 7 months of age, potentially contributing to a developmental cascade of autism symptoms. Caregiver responsiveness, which has been linked to positive social communication outcomes, has not been adequately examined…

While atypical sensory processes have become central to scientific explanatory models of autism, such models usually do not explicitly address first-person experiences of sensory processes by autistic individuals. Detailed phenomenological research of this subjective domain is nonetheless essential to ground explanatory accounts in the actual…

Sensory over-responsivity in the vestibular domain (aka gravitational insecurity) has been frequently identified in the literature. However, little has been written about the effectiveness of interventions, especially in toddlers with these idiopathic challenges (e.g. without a diagnosis of autism). The objective of this pilot study was to test…

The typical trigonometry, precalculus, or calculus student might not agree that logarithms are hot stuff, but we drew motivation from chili peppers to help students get a better taste for logarithms. The Scoville scale, which ranges from 0 to 16,000,000, has been the sole quantitative metric to measure the pungency (spiciness) of peppers since its…

Purpose: To better define the contributions of somatosensory and auditory feedback in vocal motor control, a laryngeal perturbation experiment was conducted with and without masking of auditory feedback. Method: Eighteen native speakers of English produced a sustained vowel while their larynx was physically and externally displaced on a subset of…

Sensory reactivity differences are a diagnostic criterion of autism. Sensory hyperreactivity has been linked to intolerance of uncertainty and anxiety in autistic children. However, research is yet to explore the mediating relationships or sensory hyporeactivity, seeking and anxiety subtypes in preschool-age autistic children. Therefore, we aimed…

Various theories suggest that human beings differ regarding their susceptibility to environmental stimuli, some of these theories have their origin in the field of developmental psychology. From an evolutionary perspective, it has been assumed that this susceptibility trait follows a normal distribution in the population, with a minority being…

This prospective study examined the latent growth trajectories of sensory patterns among a North Carolina birth cohort (N = 1517; 49% boys, 87% White) across infancy (6-19 months), preschool (3-4 years), and school years (6-7 years). Change rates of sensory hyper- and hyporesponsiveness better differentiated children with an autism diagnosis or…

It is estimated that nearly 90% of children on the autism spectrum exhibit sensory atypicalities. What aspects of sensory processing are affected in autism? Although sensory processing can be studied along multiple dimensions, two of the most basic ones involve examining instantaneous sensory responses and how the responses change over time. These…