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Laboratory
Director |
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| Steven
M. Barlow, Ph.D. |
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• Professor,
Dept of Speech-Language-Hearing: Sciences and
Disorders (2004-present)
• Professor and Chair, Dept of Speech-Language-Hearing: Sciences & Disorders
(2000-04)
• Professor, Programs in Neuroscience, Human Biology, and Bioengineering
• Director, Communication Neuroscience Laboratories
• Director, Digital Electronics & Engineering Core NIH P30, Center for
Biobehavioral Neurosciences in Human Communication
• Core, Center for Neurological Disorders
• KECK AWARD 1985
• ZEMLIN AWARD Speech Science 2003
• ASHA FELLOW 2009
• Higuchi Bioscience - Dolph Simons Biomedical Award 2009
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Staff
Research
Engineer |
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Graduate Students |
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| Austin Oder, B.A. |
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Ph.D. Student, Developmental Speech Physiology, University of Kansas
B.A., Speech-Langauge-Hearing: Sciences & Disorders, 2009, University of Kansas
B.A. minor, Linguistics, 2009, University of Kansas
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Research Interests:
Infant neuromotor development, sensory modulation and adaptation,
transition to oral feeding, and neurodevelopmental outcomes.
Current Research Project:
Coordination of suck-swallow-breathe in infants during nutritive feed
The purpose of this study is to explore the effects of feed
perturbations on ororhythmic patterning, as well as the coordination
of the suck-swallow-breathe pattern associated with nutritive feeding
in healthy full-term infants. Using a computer-controlled syringe pump
feeder created in the CNL, precise volumes of nutrient will be delivered
to the infant each time she produces a threshold suck compression signal.
A pre-determined dispense/no dispense ratio will be used to explore the
reorganization and short-term adaptation of the neural and orofacial motor
systems when feeding elements are manipulated.
Hometown: Chanute, KS
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Lalit
Venkatesan, ABD
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ABD, Neurosciences, University of Kansas
M.S. Computer Engineering, 2006, University of Kansas
B.E. Electronics and Communications Engineering, 2004, Bharathiar University, India |
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Research
Interests: Sensorimotor integration,
Motor control, Neuroimaging and Adult Stroke.
Current Research Project(s):
TAC-Cell: A new MEG/MRI compatible pneumatic
tactile stimulator
TAC-Cell (Barlow & Venkatesan, 2009)
is a MEG/MRI compatible single-channel cutaneous tactile stimulator. A recent
study (Venkatesan et al., 2010) utilized MEG to characterize adaptation in the
human hand and face primary somatosensory cortex. Repetitive stimulation of the
hand and lip using the TAC-Cell resulted in the short-term adaptation of the primary
somatosensory cortex. A new reconfigurable multi-channel stimulator called
the TAC-Cell array is being developed to present the tactile stimulus to multiple
skin sites. It has the capability to generate a sense of apparent motion in the face and hand.
VIBROGRAM: Frequency Sensitivity
Detection of the Human Face and Hand
The purpose of this study is to assess
frequency sensitivity of the human face and hand to mechanical stimulation. Mechanical stimuli
will be presented using a custom-built device called the Vibrogram. The computer-controlled
Vibrogram consists of an electromagnetically shielded mini-vibrator (Bruel & Kjaer 4810 Minishaker)
that drives a nylon contactor probe (surface area = 0.5 sq. cm) with a rigid annular surround.
Dr. Barlow developed this technology for use with hand and face (Barlow, 1987).
Tissue calibration using fiberoptic sensors
A non-contact fiberoptic
sensor will be used for micron resolution tissue calibration in conjunction with functional brain
imaging experiments.
Hometown: Coimbatore, India
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| Rebecca Custead, RN |
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Ph. D. Student, Communication Neuroscience, University of Kansas
M. A. Speech-Language-Hearing: Sciences & Disorders, 2011, University of Kansas
B. S. Nursing, University of Illinois at Chicago.
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History and Skills:
Worked as a registered nurse in adult ICU/CCU,
trauma, cardiothoracic step-down, stroke, burn
and ER at medical facilities in Illinois, Missouri and Kansas
Research Interests:
Effects of CVA, TBI and progressive neurological disease on communication;
Acute and post-acute pharmatherepuetic and rehabilitative intervention for
language and speech recovery following neural injury; Functional neuroimaging,
central nervous system and speech physiology; Effects of aging on the central
nervous system and its influence on brain processing and reorganizational
capacities in both health and disease.
Current
Research Project:
Effects of Age and Sex on Lip and Finger Ramp-and-Hold Force Dynamics:
This study utilizes a computer software application designed in the CNL called ForceWin RT.
The program measures properties of force generation (RAMP) and control (HOLD) in isolated
orofacial structures. This project is intended to investigate the interrelationship between
aging and changes in fine force performance of perioral structures used in speech.
Hometown: Chicago, IL
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| Lindsey R. Williamson, B.A. |
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B.A. Speech, Language, and Hearing, 2010, The University of Kansas
B.A. Human Biology: concentration in Psychology, 2010, The University of Kansas
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Research
Interests: Neurological function and brain mapping
of individuals with Speech and Language Disorders. Planning to focus
studies on Autism Spectrum Disorders and/or Brain Traumas.
Current Research: Lindsey is participating in an independent
research course directed by Dr. Barlow focused on brain mapping somatosensory
function in children who fall under the Autism Spectrum as measured with non-invasive
TAC-Cell® technology and magnetoencephalography (MEG). At this time Lindsey is also
working in Dr. Hugh Catts’ research lab for the Language and Reading Research Consortium
(LARRC) Project. Lindsey is a first year graduate student in Speech-Language Pathology
planning to finish her M.A. in the spring of 2013. She will then continue Ph.D. studies
at the University of Kansas in Neurosciences and Brain Mapping of Speech and Language.
Hometown: Paola, KS
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Affiliated Research Faculty |
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| Meredith
Poore, PhD |
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Speech
Pathologist, Shawnee Mission School District,
Kansas City, present
Ph.D., Developmental Speech Physiology, University of Kansas, 2011
B.G.S., Speech-Language-Hearing: Sciences and Disorders, University of
Kansas, 2005
B.A. minor, Linguistics, University of Kansas, 2005
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Research Interests: The primary
goal of my research career is to develop techniques
for early intervention and/or prevention of
speech–language impairment. Topics of interest
include: 1) infant and child linguistic, cognitive,
and motor development; 2) speech kinematics;
3) speech acoustics.
Current Research Project: Environmental Catalysts and Orofacial Kinematics
of Emergent Canonical Syllables: The vocalizations and jaw kinematics of 30
infants aged 6–8 months were recorded using a Motion Analysis System and audiovisual
technologies. This study represents the first attempt to determine the effect of play
environment on infants’ rate of vocalization and jaw movement. Four play conditions were
compared: watching videos, social interaction with an adult, playing alone with small toys,
and playing alone with large toys. The fewest vocalizations and the least amount of
spontaneous movement was observed when infants were watching videos and social interaction
with an adult. Infants vocalized most when playing with large toys. The gross motor movement
(e.g. waving, banging, shaking) naturally elicited by small toys was predicted to be the
reason it educed fewer vocalizations than large toy play. This study was also the first to
examine the kinematics of both vocalized and non-vocalized jaw movements from infants 6–8
months of age. Infants produced many spontaneous jaw movements without vocalization. When
vocalizing, infants were not likely to move their jaw. This contradicts current theories
that infants’ canonical-stage vocalizations are jaw-dominant. Also, the onset of canonical
babbling has been predicted to be driven by a change in oromotor skill. However, no differences
were found in the jaw kinematics of infants who were canonical babbling versus those who were
not. Results of the current study can inform both environmental and motor theories of infants’
canonical babbling.
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| Emily Zimmerman, PhD, CCC-SLP |
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PhD, Developmental Speech Physiology and Neuroscience, 2011, The University of Kansas
M.A. Speech, Language, and Hearing Sciences and Disorders, 2007, The University of Kansas
B.A. Speech, Language, and Hearings Sceinces and Disorders, 2005, The University of Kansas
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Research Interests and Skills:
Emily was a graduate research assistant in the CNL
from 2005-2011. During this time, she worked closely
with the NTrainer technology. She has been heavily
involved in data collection, learned software tools,
and statistical methods to handle repeated measures
multivariate data sets. Emily is also a certified speech
pathologist and has worked with a variety of clinical
populations and settings.
Research Project(s) :
Emily was a graduate research assistant in
the CNL from 2005-2011. During this time,
she worked closely with the NTrainer technology. She has been heavily
involved in data collection,
learned software tools, and statistical methods
to handle repeated measures multivariate data sets. Emily is also
a certified speech pathologist
and has worked with a variety of clinical
populations and settings
Current Position :
Postdoctoral Fellowship in Neonatology at Brigham and Women's Hospital, Boston, MA
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| Meredith
Estep, PHD |
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Ph.D.
Neuroscience, University of Kansas, December
2009.
A.B.D. Neuroscience , University of Kansas, 2007.
B.A. Human Biology, University of Kansas, 2002.
Post-Doctoral Fellow, Washington University Medical School.
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Research Interests:
Adult human perioral response:
Electrophysiology and the characterization
of reflex gain and modulation as
a function of early or mid-contraction
orbicularis oris force threshold
and task dynamics.
Sensorimotor deprivation and
the preterm human infant:
Actifier technology and the characterization
of seven non-nutritive suck parameters
in preterm infants with respiratory
distress syndrome.
Neural substrate correlatated
with adult human orofacial sensory
mechanisms: Functional neuroimaging
(MEG) and the registration of hand
and face somatosensory inputs using
patterned pneumatic-cutaneous pulse
trains.
Cortical and subcortical contributions to ororhythmic behavior: Functional
neuroimaging (fMRI) and the analysis of the extent of shared or unique
correlates as a function of task or intersegmental rate.
Current Research Project(s): Corticobulbar
motor control mechanisms related to
healthy adult rhythmic behiors:
Using functional neuroimaging (fMRI)
to provide comprehensive insight into
how the central nervous system encodes
the kinematics of rhythmic motor behaviors
performed orally by healthy adults.
Preliminary findings suggest shared
cortical (sensorimotor & cingulate),
subcortical (basal ganglia, thalamus,
cerebellar cortex & nuclei), and
brainstem (pons, medulla) correlates
encode healthy adult speech (unvoiced
syllabic) and non-speech (suck) tasks
performed at varying rates (1 or 3
Hz). The current investigation is focused
on determining the extent of overlap
among activated neural regions correlated
with ororhythmic task and rate. Future
investigations are planned to provide
insight into the functional and anatomical
connectivity of activated neural regions
Hometown: Wichita, KS
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Personnel
