The Barrow Neurological Institute is proud of its reputation as a medical research facility and is home to some of the most sophisticated research programs outside of an academic setting in the Southwestern United States. Researchers in the Barrow Neurosurgery Research Center are devoted to learning more about the causes of and treatments for a wide range of disorders, such as stroke, aneurysms, spinal cord injury, and hydrocephalus. Our research has led to treatments that are being used around the world. Within the Department are neurosurgeons who subspecialize in cerebrovascular and skull base, functional and stereotactic, pediatric, spine, tumor, and endovascular neurosurgery.
Physicians, scientists, and expert clinical staff come together with a commitment to developing new techniques for the prevention, diagnosis, treatment, and rehabilitation of neurological illnesses and injuries. The leadership of internationally respected physicians keeps Barrow at the forefront of neuroscience. The compassionate expertise of its extensive staff of nurses, technologists, therapists and support personnel is evident in every aspect of care provided.
Our mission is to advance the knowledge and practice of medicine in neuroscience through basic and clinical research, education of medical professionals, and innovation in clinical techniques and technology.
Submissions from 2017
Analysis of Audiometric Outcomes following Combined Middle Cranial Fossa/Transmastoid Approaches for Spontaneous Cerebrospinal Fluid Otorrhea., Shawn M Stevens, Ryan Crane, Myles L Pensak, and Ravi N Samy
Middle Ear Obliteration with Blind-Sac Closure of the External Auditory Canal for Spontaneous CSF Otorrhea., Shawn M Stevens, Ryan Crane, Myles L Pensak, and Ravi N Samy
Response to "Middle Ear Obliteration with Blind-Sac Closure of the External Auditory Canal for Spontaneous CSF Otorrhea"., Shawn M Stevens, Ryan Crane, Myles L Pensak, and Ravi N Samy
Long-term Symptom-specific Outcomes for Patients With Petrous Apex Cholesterol Granulomas: Surgery Versus Observation., Shawn M Stevens, Amy Manning, Myles L Pensak, and Ravi N Samy
Radiographic Evidence of Occult Intracranial Hypertension in Patients with Ménière's Disease., Kareem O Tawfik, Shawn M Stevens, David Mihal, Mark S Costello, Rebecca S Cornelius, Ravi N Samy, and Myles L Pensak
Optimizations for the Electrically-Evoked Stapedial Reflex Threshold Measurement in Cochlear Implant Recipients, Jace Wolfe, Melanie Gilbert, Erin Schafer, Leonid M. Litvak, Anthony J. Spahr, Aniket Saoji, and Charles Finley
Evaluating the sinus and Nasal Quality of Life Survey in the pediatric cystic fibrosis patient population, Deborah X. Xie, Jeffanie Wu, Katherine Kelly, Rebekah F. Brown, Chevis Shannon, and Frank W. Virgin
Submissions from 2016
Benign paroxysmal positional vertigo commonly occurs following repair of superior canal dehiscence, Samuel R. Barber, Yew Song Cheng, Maryanna Owoc, Brian M. Lin, Aaron K. Remenschneider, Elliott D. Kozin, and Daniel J. Lee
3D-printed pediatric endoscopic ear surgery simulator for surgical training, Samuel R. Barber, Elliott D. Kozin, Matthew Dedmon, Brian M. Lin, Kyuwon Lee, Sumi Sinha, Nicole Black, Aaron K. Remenschneider, and Daniel J. Lee
Cochlear Implantation in a Patient With Pfeiffer Syndrome and Temporal Bone Vascular Anomalies, Samuel R. Barber, Aaron K. Remenschneider, Elliott D. Kozin, Mary E. Cunnane, Brian V. Nahed, Thabele Leslie-Mazwi, and Alicia M. Quesnel
Participant-generated Cochlear Implant Programs: Speech Recognition, Sound Quality, and Satisfaction, Robert T. Dwyer, Tony Spahr, Smita Agrawal, Chris Hetlinger, Jourdan T. Holder, and René H. Gifford
Management of rhinosinusitis during pregnancy: systematic review and expert panel recommendations, Devyani Lal, Ameya A. Jategaonkar, Larry Borish, Linda R. Chambliss, Sharon H. Gnagi, Peter H. Hwang, Matthew A. Rank, James A. Stankiewicz, and Valerie J. Lund
Lateral Skull Base Attenuation in Patients with Anterior Cranial Fossa Spontaneous Cerebrospinal Fluid Leaks., Brendan P O'Connell, Shawn M Stevens, Christopher C Xiao, Ted A Meyer, and Rodney J Schlosser
Parsonage-Turner Syndrome: A Case of Idiopathic Upper Extremity Paresis Following Middle Cranial Fossa Resection of a Vestibular Schwannoma., James Prueter, Shawn M Stevens, Norberto Andaluz, and Ravi N Samy
Outcomes following Pediatric Auditory Brainstem Implant Surgery: Early Experiences in a North American Center, Sidharth V. Puram, Samuel R. Barber, Elliott D. Kozin, Parth Shah, Aaron Remenschneider, Barbara S. Herrmann, Ann-Christine Duhaime, Fred G. Barker, and Daniel J. Lee
Association between Lateral Skull Base Thickness and Surgical Outcomes in Spontaneous CSF Otorrhea., Shawn M Stevens, Habib G Rizk, Wesley R McIlwain, Paul R Lambert, and Ted A Meyer
Submissions from 2015
Factors constraining the benefit to speech understanding of combining information from low-frequency hearing and a cochlear implant, Michael F. Dorman, Sarah Cook, Anthony Spahr, Ting Zhang, Louise Loiselle, David Schramm, JoAnne Whittingham, and Rene Gifford
Retrofacial approach to access the round window for cochlear implantation of malformed ears., Habib Rizk, Brendan O'Connell, Shawn Stevens, and Ted Meyer
The Mouse Round-window Approach for Ototoxic Agent Delivery: A Rapid and Reliable Technique for Inducing Cochlear Cell Degeneration., Shawn M Stevens, LaShardai N Brown, Paula C Ezell, and Hainan Lang
Malignant Otitis Externa: A Novel Stratification Protocol for Predicting Treatment Outcomes., Shawn M Stevens, Paul R Lambert, Andrew B Baker, and Ted A Meyer
Novel radiographic measurement algorithm demonstrating a link between obesity and lateral skull base attenuation., Shawn M Stevens, Paul R Lambert, Habib Rizk, Wesley R McIlwain, Shaun A Nguyen, and Ted A Meyer
Obesity related complications in surgery., Shawn M Stevens, Brendan P O'Connell, and Ted A Meyer
Submissions from 2014
Interaural level differences and sound source localization for bilateral cochlear implant patients, Michael F. Dorman, Louise Loiselle, Josh Stohl, William A. Yost, Anthony Spahr, Chris Brown, and Sarah Cook
Bimodal cochlear implants: the role of acoustic signal level in determining speech perception benefit, Michael F. Dorman, Philip Loizou, Shuai Wang, Ting Zhang, Anthony Spahr, Louise Loiselle, and Sarah Cook
Clinical assessment of spectral modulation detection for adult cochlear implant recipients: a non-language based measure of performance outcomes, René H. Gifford, Andrea Hedley-Williams, and Anthony J. Spahr
Effects of fast, slow, and adaptive amplitude compression on children's and adults' perception of meaningful acoustic information., Andrea L Pittman, Ashley J Pederson, and Madalyn A Rash
Development and validation of the pediatric AzBio sentence lists, Anthony J. Spahr, Michael F. Dorman, Leonid M. Litvak, Sarah J. Cook, Louise M. Loiselle, Melissa D. DeJong, Andrea Hedley-Williams, Linsey S. Sunderhaus, Catherine A. Hayes, and René H. Gifford
Development and validation of the pediatric AzBio sentence lists, Anthony J. Spahr, Michael F. Dorman, Leonid M. Litvak, Sarah J. Cook, Louise M. Loiselle, Melissa D. DeJong, Andrea Hedley-Williams, Linsey S. Sunderhaus, Catherine A. Hayes, and René H. Gifford
Heptanol application to the mouse round window: a model for studying cochlear lateral wall regeneration., Shawn M Stevens, Yazhi Xing, Christopher T Hensley, Juhong Zhu, Judy R Dubno, and Hainan Lang
Submissions from 2013
Localization and speech understanding by a patient with bilateral cochlear implants and bilateral hearing preservation, Michael F. Dorman, Anthony J. Spahr, Louise Loiselle, Ting Zhang, Sarah Cook, Chris Brown, and William Yost
Relationship between auditory function of nonimplanted ears and bimodal benefit, Ting Zhang, Anthony J. Spahr, Michael F. Dorman, and Aniket Saoji
Submissions from 2012
Current research with cochlear implants at Arizona State University, Michael F. Dorman, Anthony Spahr, Rene H. Gifford, Sarah Cook, Ting Zhang, Louise Loiselle, William Yost, Lara Cardy, JoAnne Whittingham, and David Schramm
HEARING, PSYCHOPHYSICS, AND COCHLEAR IMPLANTATION: EXPERIENCES OF OLDER INDIVIDUALS WITH MILD SLOPING TO PROFOUND SENSORY HEARING LOSS, René H. Gifford, Michael F. Dorman, Chris Brown, and Anthony J. Spahr
Age-related changes of myelin basic protein in mouse and human auditory nerve., Yazhi Xing, Devadoss J Samuvel, Shawn M Stevens, Judy R Dubno, Bradley A Schulte, and Hainan Lang
Auditory training in patients with unilateral cochlear implant and contralateral acoustic stimulation, Ting Zhang, Michael F. Dorman, Qian-Jie Fu, and Anthony J. Spahr
Submissions from 2011
Spectral cues for understanding speech in quiet and in noise, Anthony Spahr, Aniket Saoji, Leonid Litvak, and Michael Dorman
Submissions from 2010
Information from the voice fundamental frequency (F0) region accounts for the majority of the benefit when acoustic stimulation is added to electric stimulation, Ting Zhang, Michael F. Dorman, and Anthony J. Spahr
Frequency overlap between electric and acoustic stimulation and speech-perception benefit in patients with combined electric and acoustic stimulation, Ting Zhang, Anthony J. Spahr, and Michael F. Dorman
Submissions from 2009
Spectral modulation detection and vowel and consonant identifications in cochlear implant listeners, Aniket A. Saoji, Leonid Litvak, Anthony J. Spahr, and David A. Eddins
The use of fundamental frequency for lexical segmentation in listeners with cochlear implants, Stephanie Spitzer, Julie Liss, Tony Spahr, Michael Dorman, and Kaitlin Lansford
Submissions from 2008
The benefits of combining acoustic and electric stimulation for the recognition of speech, voice and melodies, Michael F. Dorman, Rene H. Gifford, Anthony J. Spahr, and Sharon A. McKarns
Hearing preservation surgery: psychophysical estimates of cochlear damage in recipients of a short electrode array, René H. Gifford, Michael F. Dorman, Anthony J. Spahr, Sid P. Bacon, Henryk Skarzynski, and Artur Lorens
Simulating the effects of spread of electric excitation on musical tuning and melody identification with a cochlear implant, Anthony J. Spahr, Leonid M. Litvak, Michael F. Dorman, Ashley R. Bohanan, and Lakshmi N. Mishra
Submissions from 2007
An electric frequency-to-place map for a cochlear implant patient with hearing in the nonimplanted ear, Michael F. Dorman, Tony Spahr, Rene Gifford, Louise Loiselle, Sharon McKarns, Timothy Holden, Margaret Skinner, and Charles Finley
Auditory function and speech understanding in listeners who qualify for EAS surgery, René H. Gifford, Michael F. Dorman, Anthony J. Spahr, and Sid P. Bacon
Loudness growth observed under partially tripolar stimulation: model and data from cochlear implant listeners, Leonid M. Litvak, Anthony J. Spahr, and Gulam Emadi
Relationship between perception of spectral ripple and speech recognition in cochlear implant and vocoder listeners, Leonid M. Litvak, Anthony J. Spahr, Aniket A. Saoji, and Gene Y. Fridman
Performance of patients using different cochlear implant systems: effects of input dynamic range, Anthony J. Spahr, Michael F. Dorman, and Louise H. Loiselle
Submissions from 2005
Acoustic simulations of combined electric and acoustic hearing (EAS), Michael F. Dorman, Anthony J. Spahr, Philipos C. Loizou, Cindy J. Dana, and Jennifer S. Schmidt
Effects of minimum stimulation settings for the Med El Tempo+ speech processor on speech understanding, Anthony J. Spahr and Michael F. Dorman
Submissions from 2002
A comparison of the speech understanding provided by acoustic models of fixed-channel and channel-picking signal processors for cochlear implants, Michael F. Dorman, Philipos C. Loizou, Anthony J. Spahr, and Erin Maloff
Factors that allow a high level of speech understanding by patients fit with cochlear implants, Michael F. Dorman, Philipos C. Loizou, Anthony J. Spahr, and Erin Maloff
The intelligibility of speech with "holes" in the spectrum, Kalyan Kasturi, Philipos C. Loizou, Michael Dorman, and Tony Spahr
A sensitive period for the development of the central auditory system in children with cochlear implants: implications for age of implantation, Anu Sharma, Michael F. Dorman, and Anthony J. Spahr
Rapid development of cortical auditory evoked potentials after early cochlear implantation, Anu Sharma, Michael F. Dorman, and Anthony J. Spahr
Early cochlear implantation in children allows normal development of central auditory pathways, Anu Sharma, Michael Dorman, Anthony Spahr, and N Wendell Todd
Submissions from 2000
Speech recognition by normal-hearing and cochlear implant listeners as a function of intensity resolution, P C. Loizou, M Dorman, O Poroy, and T Spahr