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Hames EC, Murphy B, Rajmohan R, et al. Visual, Auditory, and Cross Modal Sensory Processing in Adults with Autism: An EEG Power and BOLD fMRI Investigation. Front Hum Neurosci. 2016;10:167doi: 10.3389/fnhum.2016.00167.
Hames, E. C., Murphy, B., Rajmohan, R., Anderson, R. C., Baker, M., Zupancic, S., O'Boyle, M., & Richman, D. (2016). Visual, Auditory, and Cross Modal Sensory Processing in Adults with Autism: An EEG Power and BOLD fMRI Investigation. Frontiers in human neuroscience, 10167. https://doi.org/10.3389/fnhum.2016.00167
Hames, Elizabeth' C, et al. "Visual, Auditory, and Cross Modal Sensory Processing in Adults with Autism: An EEG Power and BOLD fMRI Investigation." Frontiers in human neuroscience vol. 10 (2016): 167. doi: https://doi.org/10.3389/fnhum.2016.00167
Hames EC, Murphy B, Rajmohan R, Anderson RC, Baker M, Zupancic S, O'Boyle M, Richman D. Visual, Auditory, and Cross Modal Sensory Processing in Adults with Autism: An EEG Power and BOLD fMRI Investigation. Front Hum Neurosci. 2016 Apr 19;10:167. doi: 10.3389/fnhum.2016.00167. eCollection 2016. PMID: 27148020; PMCID: PMC4835455.
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Front Hum Neurosci. 2016 Apr 19;10:167. doi: 10.3389/fnhum.2016.00167. eCollection 2016.

Visual, Auditory, and Cross Modal Sensory Processing in Adults with Autism: An EEG Power and BOLD fMRI Investigation.

Frontiers in human neuroscience

Elizabeth' C Hames, Brandi Murphy, Ravi Rajmohan, Ronald C Anderson, Mary Baker, Stephen Zupancic, Michael O'Boyle, David Richman

Affiliations

  1. Department of Electrical and Computer Engineering, Texas Tech University, Lubbock TX, USA.
  2. Department of Audiology, Texas Tech University Health Sciences Center, Lubbock TX, USA.
  3. Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock TX, USA.
  4. College of Human Sciences, Texas Tech University, Lubbock TX, USA.
  5. Burkhart Center for Autism Education and Research, Texas Tech University, Lubbock TX, USA.

PMID: 27148020 PMCID: PMC4835455 DOI: 10.3389/fnhum.2016.00167

Abstract

Electroencephalography (EEG) and blood oxygen level dependent functional magnetic resonance imagining (BOLD fMRI) assessed the neurocorrelates of sensory processing of visual and auditory stimuli in 11 adults with autism (ASD) and 10 neurotypical (NT) controls between the ages of 20-28. We hypothesized that ASD performance on combined audiovisual trials would be less accurate with observable decreased EEG power across frontal, temporal, and occipital channels and decreased BOLD fMRI activity in these same regions; reflecting deficits in key sensory processing areas. Analysis focused on EEG power, BOLD fMRI, and accuracy. Lower EEG beta power and lower left auditory cortex fMRI activity were seen in ASD compared to NT when they were presented with auditory stimuli as demonstrated by contrasting the activity from the second presentation of an auditory stimulus in an all auditory block vs. the second presentation of a visual stimulus in an all visual block (AA2-VV2).We conclude that in ASD, combined audiovisual processing is more similar than unimodal processing to NTs.

Keywords: EEG; auditory; autism; cross-modal sensory processing; fMRI; visual

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