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Helen Mayberg, MD
Professor of Psychiatry, Neurology and Radiology

Patricio Riva Posse, MD
Assistant Professor

Ki Sueng Choi, Ph.D.
Department of Psychiatry and Behavioral Sciences
Assistant Professor
Phone: 404-727-5602

My special expertise resides in the functional neuroimaging and neuromodulation technologies. My research seeks to characterize the structural and functional organization of depression circuits using diffusion tensor imaging and functional MRI for applications in the imaging biomarker of depression and optimizing surgical targeting for deep brain stimulation in treatment-resistant depressed patients. Currently, I am developing the prospective target selection algorithm and toolbox using connectivity analysis for successful SCC DBS treatment. (CV)

Research Staff:

Sinéad Quinn
Supervisor, Research Project Coordinator
Phone: 404-727-9224

Justin Rajendra
Research Informatics Analyst
Phone:  404-727-2992

Lydia Dennison
Research Interviewer
Phone: 404-712-1580

Postdoctoral Fellows:

Kelly Rowe Bijanki, Ph.D.
Departments of Psychiatry and Neurosurgery

My current research seeks to investigate the effects of electrical brain stimulation on the function of the limbic system, a network of brain regions exerting broad control over emotion. I use a convergence of neuroscientific techniques to study this system, including neuroimaging and neurophysiology, as well as targeted measures of behavior and autonomic activity. My work at Emory has centered around patients receiving deep brain stimulation for treatment-refractory major depressive disorder and patients with refractory epilepsy undergoing invasive intracranial monitoring for seizure focus localization (CV).


Andrea Crowell, M.D.
Department of Psychiatry and Behavioral Sciences

Allison C. Waters, Ph.D.
Department of Psychiatry and Behavioral Sciences
Phone: 404-727-9741

The aim of my research is to understand how brain network pathology contributes to maladaptive thinking, feeling and behavior – and how these may be corrected with targeted intervention. My research reflects early efforts to identify electrophysiological targets for the treatment of depression with cognitive therapy and brain stimulation. I am excited by the growing prospect of psychotherapeutic services that integrate treatment for the mind with treatment for the brain, and maximize lasting benefit from both. (CV)


Graduate Students:

Vineet Tiruvadi

I am an MD/PhD student at Emory+GeorgiaTech and pursuing a PhD in Biomedical Engineering. My interests revolve around understanding brain signaling changes following deep brain stimulation for depression in the context of network modeling and control. I aim to work at the intersection of neurosurgery, psychiatry, electrical engineering, and computational neuroscience as an academic physician-scientist.


Ashan Veerakumar
Phone: 404-727-9728

I am a 2015 HHMI Medical Fellow at the Depression Biometrics lab.  I arrived as a Medical Student at the University Of Maryland School Of Medicine with an interest in pursuing a career in academic psychiatry.  My primary research interests concerns the ability of DBS to entrain natural operating frequencies of the waking, behaving brain, and the effect of stimulus frequency on producing optimal clinical outcomes in the SCC-DBS population.


Research Assistants:

In Jae Chung

Junhan Fang

I am currently a 2nd year graduate student in Biostatistic at Rollins School of Public Health at Emory University. I plan to pursue a career in Biostatistics, with interests in imaging statistics and networking methods.

Christopher Tseng

I am a second-year undergraduate in Emory University majoring in biology and computer science. I am interested in applying programming skills to better analyze and provide new perspectives on scientific research data.


Conner Weiss Programmer
Number: 678-431-0864

Divyaansh Raj

I am currently a freshman at Emory College pursuing a major in Neuroscience and Behavioral Biology and a minor in Computer Science. I am interested in using computational analysis and imaging techniques to help those who suffer from different forms of depression.


Maureen Ascona


I am currently an undergraduate junior at Emory University, and I'm a Neuroscience and Behavioral Biology and Music: Jazz studies double major. I plan to pursue a career in Neuropsychology, with an interest in psychosis.


Shauna Bowes


I am a senior undergraduate in the College of Arts and Sciences, and I am pursuing my degree in Neuroscience and Behavioral Biology. In the future, I hope to attend a Clinical Psychology program where I can develop my interests in treating chronic behavioral disorders.