Our work emphasizes the combined application of behavioral
and electroencephalographic (EEG) methods, using the methods of
computational neuroscience to link these variables.There are currently four major areas of emphasis in our lab:
- Behavioral regularities and neural mechanisms of perceptual learning:
This work is pursuing two broad goals. The first is to provide
simultaneous behavioral and neurophysiological evidence capable of
supporting or refuting hypotheses of multiple, simultaneously-available
levels of coding in visual perceptual learning. The second is to develop
computational, biophysically-constrained models of the networks that
support the learning and expression of visual perceptual learning.
- Theoretical and empirical characterizations of perceptual
organization (configurality): Our lab, in partnership with Jim
Townsend's lab at Indiana University, is pursuing a linked theoretical
and empirical program aimed at developing and testing general,
theoretically-grounded definitions of configurality, with a particular
interest in facial perception and memory.
- Effects of brain iron deficiency and repletion on perception, memory, and cognition: This is a second new line of work in the lab, in which we are documenting (using a combination of behavioral, EEG, and MRI measures) the extent to which iron deficiencies in women of reproductive age produce measurable, and correctable, changes in basic perceptual, mnemonic, and cognitive abilities.
- Animal models for developing and evaluating computational algorithms
for cortical source localization of EEG: The goal of this new line of
work is to use the remarkable characteristics of the rat vibrissal
system to develop allied statistical and empirical methods for comparing
the performance of algorithms for EEG cortical source localization to a
We also have a line of work with collaborators at the Health Sciences Center. Our collaborators include Dr. Barbara Carlson, Dr. Linda Hershey, Dr. Melissa Craft, and Dr. Lauren Ethridge.
Oxygenation and Memory Consolidation in Elders with and without Mild Cognitive
and Aging in Breast Cancer Survivors
- Description and Comparison of Cerebral Oxygenation and Cerebrovascular Reactivity in Lewy Body Dementia and Amnestic Mild Cognitive Impairment