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Lab Members

Demas Group 2013

Research Group Leader

Greg Demas

Dr. Greg Demas

Associate Professor

Contact

gdemas@indiana.edu

Background

Postdoctoral Fellow, NSF Center for Behavioral Neuroscience, Georgia State University, 1998-2001

PhD, Johns Hopkins University, 1998

Current Members

Graduate Researchers

Liz Carlton

Liz Carlton

Contact

elcarlto@indiana.edu

Research

I am interested in the endocrine signals that regulate seasonal variation in sickness responses. I explore my research questions with the Siberian hamster and employ a variety of ecoimmunological techniques and endocrine assays to understand the physiological basis of this variation.

Nikki Rendon

Nikki Rendon

Contact

nrendon@indiana.edu

Research

I study mechanisms underlying neuroendocrine regulation of aggressive behavior, with a specific focus on same-sex aggressive behavior in the Siberian hamster (Phodopus sungorus). Neuroendocrine mechanisms have been well studied in males; however, the processes promoting this aggressive behavior in females are poorly understood.

I am exploring whether behavioral differences among females and between the sexes are coupled withneural sensitivity to steroid hormones (e.g. testosterone), as well as neurosteroids (e.g. DHEA), specifically sulfated derivatives (e.g.DHEA-S). I combine techniques from ecology, neuroendocrinology, physiology and molecular genetics to connect behavior to physiology.

Allison Bailey

Allison Bailey

Contact

allibail@indiana.edu

Research

I am interested in how environmental conditions influence reproductive function in animals and how animals use environmental cues to successfully reproduce. Specifically, I am investigating the roles of two recently discovered neuropeptides, kisspeptin and RFamide-related peptide, in regulating seasonal reproduction in the Siberian hamster.

Kristyn Sylvia

Kristyn Sylvia

Contact

ksylvia@indiana.edu

Research

I am broadly interested in early life environmental stressors, such as immune activation and inflammation and the effects these stressors can have on reproductive development and subsequent reproductive and social behaviors in the Siberian hamster. I am particularly interested in the mechanisms behind these effects, and the role that kisspeptin may have in mediating these effects.

Undergraduate Researchers

Andrew Thompson

Andrew Thompson

Andrea Amez

Andrea Amez

Lauren Wright

Lauren Wright

Alumni

Postdocs and Graduate Researchers

Christy Bergeon Burns

Christy Bergeon Burns

Co-advised by Ellen Ketterson

Dissertation

Coordination of testosterone-mediated phenotypes and underlying endocrine mechanisms across divergent populations of the dark-eyed junco

Current Position

Postdoctoral Researcher, Louisiana State University

Jacqueline Ho

Dr. Jacqueline Ho

Dissertation

Seasonal changes in endocannabonoid signaling and energy balance

Current Position

Postdoctoral Researcher, University of Washington, Veterans Affairs Medical Center

Emily Chester

Dr. Emily Chester

Dissertation

Short- and long-term effects of environmental challenges during gestation in Siberian hamsters

Current Position

Visiting Assistant Professor of Psychology, University of New England

Mayte Ruiz

Dr. Mayte Ruiz

Co-advised by Emília Martins

Dissertation

Social signals and food availability influence reproduction and immunity

Current Position

Ford Foundation Postdoctoral Fellow, University of Puerto Rico

Susannah French

Dr. Susannah French

Common Themes in Reproductive Diversity Postdoctoral Associate (2007-2009)

Current Position

Assistant Professor of Biology, Utah State University

Timothy Greives

Dr. Timothy Grieves

Dissertation

The role of kisspeptin in the regulation of seasonal reproduction in Siberian hamsters (Phodopus sungorus)

Current Position

NSF Postdoctoral Fellow, Max Planck Institute of Ornithology

Devin Zysling

Dr. Devin Zysling

Co-advised by Ellen Ketterson

Dissertation

The role of energetic trade-offs associated with seasonal variation in immune function

Current Position

Postdoctoral Researcher, Cornell University

Melissa Scotti

Dr. Melissa Scotti

Dissertation

The neuroendocrine mediators of aggression in Siberian hamsters (Phodopus sungorus)

Current Position

Postdoctoral Researcher, Northern Illinois University

Nancy Beecher

Dr. Nancy Beecher

Co-advised by Craig Nelson

Dissertation

Frog declines: Exploring connections among climate change, immunity, and disease

Current Position

Conservation Biology, Nevada

Undergraduate Researchers

Harini Gurram

Harini Gurram

Class of 2014

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Matthew Smith

Class of 2013

Sarah Orth

Sarah Orth

Class of 2013

Kim Long

Kim Long

2008-2012

Jessica VanOsdol

Jessica VanOsdol

2010-2011

Sucharat Tayarachakul

Sucharat Tayarachakul

2009-2011

Amy Sutton

Amy Sutton

2009-2010

Samantha Adams

Samantha Adams

2009-2011

Rachel Buck

Rachel Buck

2009-2010

Nick Garcia

Nick Garcia

2007-2009

Tafor Banu

Tafor Banu

2006-2009

Jerrah Jackson

Jerrah Jackson

2006-2009

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Emily Stepp

2006-2008

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Stefanie Frommeyer

2005-2006

Kentaro Oki

Kentaro Oki

2004-2006

Misty Hawkins

Misty Hawkins

2004-2006

Prashant Patel

Prashant Patel

2003-2005

Sangeeta Sakaria

Sangeeta Sakaria

2003-2005

Tracy Estes

Tracy Estes

2002-2004

Andy Lutz

Andy Lutz

2002-2004

Al Durazzo

Al Durazzo

2002-2004

Claire Gonzalez

Claire Gonzalez

2002

Kevin Proud

Kevin Proud

2001-2002