The faculty listed below share an
interest in understanding the workings of the human mind by studying the intact
brain. To this end, a number of research programs in the Psychology Department
focus upon the interrelationships between psychological and physiological
aspects of behavior. Various foci include development, emotion, language,
memory, motivation, and psychopathology.
Our department has a long and
distinguished history in the area of psychophysiology. Thus, the department
commands extensive technical and human resources. State-of-the-art laboratory
facilities include capabilities for recording CNS, ANS and somatosensory
processes. Neuroimaging facilities include a state-of-the-art PET scanner (GE
ADVANCE), with fullradiochemistry and cyclotron support and a 1.5 T GE MR
scanner equipped with the GE EchoSpeed echoplanar imaging system for functional
MR (fMRI) studies. Included within the fMRI laboratory suite is a simulator room
with the shell of a GE MR scanner set up to simulate a real scanner.
Neuroimaging facilities include the
Waisman Laboratory for Brain
Imaging and Behavior. This state-of-the-art facility houses a General
Electric 3T Signa VH/I MR system that is optimized for hight-speed echo-planar
imaging as well as diffusion tensor imaging, an fMRI simulator room with a mock
scanner for acclimating subjects to the neuroimaging environment and
familiarizing them with behavioral testing procedures, and a PET scanner (GE
ADVANCE) with fullradiochemistry and cyclotron support. Additionally, the
UW-Madison MRI Center, located in the same building as the Keck laboratory,
features a GE Signa 1.5 MRI scanner that is also optimized for high-speed fMRI.
This resource is especially valuable for studies involving children or
populations that may be difficult to test in neuroimaging situations. Extensive
computer support including approximately 8 SUN or SGI workstations is available
for image analysis.
Both the Psychology Department and the
Waisman Center
employ a number of in-house full-time electronic, mechanical, and software
programming staff. Three full-time engineers in these shops provide labor
without charge to researchers working in the Psychology Department.
We
are especially pleased to announce that in the late Fall of 1999, students will
also have the opportunity of working in the Waisman Laboratory for Brain Imaging
and Behavior. This facility will be located in an interdisciplinary center on
campus that will house research programs broadly related to development with
strong neuroscience and behavioral components. This laboratory will consist of a
new PET scanner, a tandem accelerator for radiotracer production , and a new 3T
MRI scanner devoted to research. This center will provide increased
opportunities for graduate students in psychology to collaborate with faculty
from numerous departments including psychiatry, radiology, physics, computer
science, communication disorders, and neuroscience.
Related
Faculty with Primary Appointments in Psychology
Richard Davidson directs the
Laboratory for Affective Neuroscience. The
work of this lab focuses on the biological substrates and consequences
of emotion and disorders of emotion. Current studies focus on the role
of the prefrontal cortex, amygdala and other cortical and subcortical
circuitry on different components of affective responding, particularly
features of emotion regulation. The downstream consequences of
activation in this circuitry and the implications of these downstream
effects for health are also of interest. We use a full range of
psychophysiological measures including brain electrical activity,
autonomic activity (including impedance cardiography), and
skeletal-muscular activity (including startle). In addition, we use
metabolic and hemodynamic neuroimaging extensively including positron
emission tomography and functional magnetic resonance imaging. Some of
our work also includes neuroendocrine, immune and sleep assessments.
Morton Gernsbacher's lab investigates language comprehension. Their
goal is to investigate the general cognitive processes and mechanisms
underlying language comprehension, and comprehension in general. They
do so using a simple framework, the Structure Building Framework, as a
guide. They have recently begun using functional magnetic brain imaging
as a tool to identify these general cognitive processes and mechanisms.
Diane Gooding is particularly interested in the biological bases of
psychotic disorders, as well as individual differences in
brain-behavior relationships. Using psychophysiological techniques,
students in her lab study putative biobehavioral markers of
schizophrenia, such as smooth pursuit eye tracking, saccadic eye
movements, and nailfold capillary plexus.
Current work in the
Child Emotion Research Lab, directed by Seth
Pollak, is focused upon potential mechanisms in the development of both
typical and atypical emotional development. We are currently exploring
emotion recognition in groups of children at risk for emotional
problems, including maltreated children and those with developmental
disabilities. Our lab uses psychophysiological (e.g., brain electrical
activity, event-related potential) and cognitive neuropsychological
techniques to explore putative risk factors in the development of
psychopathology. We are especially interested in the relationship
between stress and disorder, and the interplay of biology and social
experience in development. These general issues frame our explorations
of the mechanisms through which affective/cognitive processes become
organized in typical human development and may also contribute to the
development of psychopathology.
Brad Postle: My interest in human memory focuses on the cognitive and
neural bases of working memory and nondeclarative memory. Topics
motivating recent and current research include: the organization of
working memory function in prefrontal cortex; the differential
contributions of prefrontal cortex and basal ganglia to visual working
memory; nonmnemonic control processes that contribute to working memory
performance; the mechanisms underlying repetition priming phenomena;
and a novel mechanism that may support spatial working memory
performance. Experimental methods employed in my laboratory include
functional magnetic resonance imaging (fMRI), behavioral testing of
neurological patients and of healthy young adults, and repetitive
transcranial magnetic stimulation (rTMS).