Personality Studies Laboratory, Dr. Josh Miller

The Personality Studies Lab studies the interplay between personality and psychopathology with a primary focus on externalizing (EXT) disorders and outcomes. Within the broad EXT grouping, our interest lies most strongly with the domain of Antagonism vs. Agreeableness. We see this as the core of multiple disorders including narcissism/narcissistic personality disorder, psychopathy/ASPD, and other related constructs (e.g., Machiavellianism). We tend to use structural models of general and pathological personality for much of our work (e.g. Five Factor Model/Big Five; DSM-5 AMPD) as we find it has great utility in organizing many of the constructs used in psychology and psychopathology with fewer concerns re: jingle-jangle fallacies.  We work on a variety of issues within this topic including diagnostic models of personality disorder, creating and validating assessments for these constructs, and building parsimonious empirical models of personality and psychopathology.

Lab site:
Visit the Personality Studies lab site

Vision Sciences Laboratory, Dr. Randy Hammond

Director: Dr. Randy Hammond

The primary goal of our research program is to conduct basic and applied studies on the visual system. A primary focus of the laboratory has been the study of the dietary carotenoids lutein and zeaxanthin, concentrated within the fovea (termed macular pigment or the macula lutea) and brain.  These studies have ranged across populations, infants to elderly, normal to diseased, and techniques, from pyschophysics to neuroimaging.

Researchers involved in the UGA Vision Laboratory:

B. Randy Hammond, Jr, Ph.D.- Principal Investigator

Lisa Renzi-Hammond, Ph.D.- Co-investigator

Colin Gardner- Graduate Student

Jeffrey Nightingale- Graduate Student

Selected Publications:

Hammond, B.R. and  Renzi-Hammond, L. (2016).  A critical look at the ancillary Age-Related Eye Disease Study 2: Nutrition and cognitive function results in older individuals with age-related macular degeneration.  Advances in Nutrition, 7, 433-37.

Hammond, B.R.,  Miller, L.S.,  Bello, M.O.,  Lindbergh, C.A.,  Mewborn, C.M., Renzi-Hammond. L.M. (2017). Effects of a lutein/zeaxanthin intervention on cognitive function: a randomized, double-masked, placebo-controlled trial of community dwelling older adults.  Frontiers in Aging Neuroscience, 9, 1-9.

Hammond, B. R., & Renzi-Hammond, L. (2018). Individual variation in the transmission of UVB radiation in the young adult eye. PloS one, 13(7), e0199940.

Stringham, J.M., Johnson, E.J. and Hammond, B.R. (2019).  Lutein across the lifespan: From childhood cognitive performance to the aging eye and brain.  Current Developments in Nutrition, 1-8.

Hammond, B.R. et al.  (2019).   The effects of blue-light intraocular lenses on the protection and function of the visual system.  Clinical Ophthalmology, 13, 2427-43.

Hammond, B. R., Buch, J., Hacker, L., Cannon, J., Toubouti, Y., & Renzi-Hammond, L. M. (2020). The effects of light scatter when using a photochromic vs. non-photochromic contact lens. Journal of Optometry, 13, 227-34.

Hammond, B. R., Buch, J., Sonoda, L., & Renzi-Hammond, L. (2021). The Effects of a Senofilcon A Contact Lens With and Without a Photochromic Additive on Positive Dysphotopsia Across Age. Eye & Contact Lens, 47(5), 265.

Hammond, B. R., & Buch, J. (2020). Individual differences in visual function. Experimental Eye Research, 108186.

Buch, J., & Hammond, B.R. (2020). Photobiomodulation of the Visual System and Human Health. International Journal of Molecular Sciences, 21(21),1-22.

Nightingale, J. and Hammond, B.R. (2021).  Measuring the behavioral effects of intraocular scatter.  JOVE,  168 (e62290). 1-15.

Elizabeth Davis

Graduate Program Administrator

Job Responsibilities

I work with graduate students and the director of graduate studies in the Psychology Ph.D. program, serving as a liaison among the graduate students, program chairs, the department head, director of graduate studies, and officials of the Graduate School. I maintain records of current, past, and prospective students. I also communicate with applicants to the doctoral program and compile their credentials folders for departmental review.

Multidisciplinary Team Reveals New Data on Alzheimer's Disease

Multidisciplinary Team Reveals New Data on Alzheimer's Disease

March, 2009

A multidisciplinary team of researchers from UGA (including Clinical Program professor L. Steven Miller), the Augusta VA Hospital, and the Medical College of Georgia have "revealed a direct relationship between two specific antibodies and the severity of Alzheimer's disease symptoms, raising hopes that a diagnostic blood test for the devastating disorder is within reach." Read about their work in the UGA Columns Newsletter.

Industrial-Organizational Psychology Professor Shares Article of the Decade Award

Industrial-Organizational Psychology Professor Shares Article of the Decade Award

August, 2009

Industrial-Organizational Psychology Professor Chuck Lance and UGA Management Professor Robert Vandenberg won the 2009 Organizational Research Methods' Article of the Decade Award for their article: Vandenberg, R. J., & Lance, C. E. (2000). A review and synthesis of the measurement invariance literature: Suggestions, practices, and recommendations for organizational research. Organizational Research Methods, 3, 4-69.

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