Samira Anderson
Assistant Professor
Samira Anderson
0119b, Lefrak Hall
Department of Hearing and Speech Sciences
Phone:
(301) 405-4224
Email:
sander22@umd.edu
Office Hours:
Fall, 2014: By appointment
Areas of Interest:
  • Neurobiology of speech perception
  • Learning-associated neural plasticity
  • Aging
  • Hearing loss
  • Auditory development
Personal Website:

Degrees

Ph.D Northwestern University, 2012
Au.D University of Florida, 2000
MA Indiana University, 1981
BA Indiana University, 1979

My lab is interested in neural processing of auditory input across the life span.  In infants, we study the development of speech sound differentiation and the relationship between subcortical speech encoding and later language development.  This information may lead to earlier identification and treatment of language-based learning impairments.  In older adults, we are investigating the effects of aging and hearing loss on the ability to understand speech in complex environments.  As we age, we begin to notice a gradual decrease in our ability to process incoming stimuli, in part due to slower speed of processing.  These changes are exacerbated by hearing loss and deficits in cognitive abilities, such as memory and attention.  The basic test of hearing thresholds does not accurately predict hearing in noise.  We use electrophysiology assessment techniques to assess the brain’s ability to accurately encode the timing and frequency components of speech in humans.  We also evaluate plasticity in the auditory brainstem and cortex in response to sensory deprivation, augmented hearing, and auditory training.  The use of hearing aids or cochlear implants cannot compensate for imprecise neural speech encoding; therefore, it is important to consider other rehabilitation approaches that focus on the use of auditory and/or cognitive training to improve speech understanding.  The information gained from our research should lead to better methods of identification and management of hearing difficulties in older adults.

Professional Reviewer: Ear & Hearing, International Journal of Audiology, Journal of Neuroscience, Neuron
Professional Reviewer: Journal of Speech, Language, and Hearing Research, Hearing Research
Professional Member: American Speech-Language-Hearing Association, American Academy of Audiology
Professional Member: American Auditory Society, Acoustical Society of America, Maryland Academy of Audiology
Professional Member: Association for Research in Otolaryngology, Society for Neuroscience