Frank G. Hillary
Associate Professor of Psychology
Ph. D., Drexel University, 2000
Department of Psychology
My research examines the effects of brain injury and disease on functional brain organization. One primary goal of our work is to understand how distributed neural networks are altered following significant neurological disruption (e.g., traumatic brain injury). Using functional MRI and high density EEG our work examines short-term plasticity during task acquisition (i.e., new learning) as well as whole-brain changes occurring during the first year after injury. Two important facets to this work are the: 1) integration of network modeling (e.g., euSEM, graph theory) to document network changes and 2) focus on individual differences in recovery to address the heterogeneous effects of injury on neural systems.
Representative publications (*=mentored student)
Hillary, F.G., Rajtmajer, S., *Roman, C., *Medaglia, J.D., Calhoun, V.D. (in press). The rich get richer: traumatic brain injury elicits hyperconnectivity in core subnetworks. PLoS ONE, 6/14.
Hillary, F.G., *Roman, C., *Venkatesan, U., Rajtmajer, S.M., Bajo, R., Castellanos, N.D., (in press). Hyperconnectivity as a fundamental response to neurological disruption. Neuropsychology. PMID: 24933491
*Medaglia, J.D, *McAleavey, A., *Nostami, S., Hillary, F.G. (in press). Modeling distinct imaging hemodynamics early after TBI: the relationship between signal amplitude and connectivity. Brain Imaging and Behavior. PMID: 24906546
*Ventkatesan, U., *Medaglia, J.D., & Hillary, F.G. (in press). Time post injury as a predictor of network change after TBI. Journal of Neurotrauma. PMID: 24955788
Hillary, F.G., *Medaglia, J.D., Gates, K., Molenaar, P., Good, D.C. (2014). Brain connectivity changes after task practice in traumatic brain injury. Brain Imaging and Behavior.
*Bryer, E., *Rostami, S., *Medaglia, J.D., Hillary, F.G.† (2013). Neural recruitment after mild traumatic brain injury is task dependent: A meta-analysis. Journal of the International Neuropsychological Society. 19(7):751-62.
*Chiou, K.S. & Hillary, F.G. (2012). Influence of item-order on task performance on metacognitive awareness. Journal of the International Neuropsychological Society. 18(2):379-83.
*Medaglia, J.D., *Chiou, K.S., Slocomb, J., Fitzpatrick, N.M., *Wardecker, B.M., *Ramanathan, D., Vesek, J., Good, D.C, Hillary, F.G. (2012). The less BOLD, the wiser: support for latent resource hypothesis after neurotrauma. Human Brain Mapping, 5/10. doi: 10.1002/hbm.21264.
*Ramanathan, D.N., Schatz, P., Hillary, F.G. (2012). Examining changes in elderly TBI over a 20–year period. Journal of Neurotrauma 10/11.
Hillary, F.G., *Medaglia, J.M., Gates, K., Molenaar, PMC, Slocomb, J., *Peechatka, A., Good, D.C. (2011). Examining working memory task acquisition in a disrupted neural network. Brain. 134(Pt 5):1555-70.
Gates, K.M., Molenaar, P.C.M., Hillary, F.G., Slobounov, S. (2011). Extended Unified SEM Approach for Modeling Event-Related fMRI Data. NeuroImage, 54(2):1151-8.
Chiou, K.S.*, Carlson, R.A., Arnett, P.A., Cosentino, S.A., Hillary, F.G. (2011). Metacognition and moderate to severe traumatic brain injury. Journal of the International Neuropsychological Society, 4:1-12.
Hillary, F.G., Slocomb, J., Hills, E.C., Fitzpatrick, N.M., Wang, J., Wylie, G.R., Good, D.C. (2011). Changes in Resting Connectivity during Recovery from Traumatic Brain Injury. International Journal of Psychophysiology. 82(1):115-23.