About Our Doctors

The Doctors of Psychology Resources specialize in individual, couples and family therapy. For more information on our doctors, click on the links below:

Jennifer L. Bissett, PhD

Dr. Bissett has trained at a wide variety of highly regarded institutions including Psychological Services at the University of Houston, the Pediatric Unit of MD Anderson Hospital, the Psychological Services Unit of the Houston Fire Department and the PIVOT Project. Her training at these respected institutions has uniquely prepared her to work from a generalist perspective…


Betty Brown, PhD

Dr. Betty Brown is a licensed psychologist specializing in work with adults, couples and groups. She received three degrees from the University of Houston including a Master of Education in Counseling and a Ph.D. in Counseling Psychology. Dr. Brown has been a counselor and psychologist on staff at the University of Houston and University of Houston-Clear Lake…

Cynthia Cook, PhD

Dr. Cook is a licensed Psychologist specializing in work with adults, couples, and groups. She is an honors graduate from Kansas State University. She earned her M.A. and Ph.D. from Southern Illinois University in Carbondale, Illinois. Dr. Cook has trained at a variety of well respected institutions, including the Counseling Center at Southern Illinois and Texas A&M Universities…

Gina Dunckel, PsyD

Dr. Dunckel earned a Bachelor’s degree from William Jessup University, where she double majored in Counseling Psychology and Theology. She then attended the Illinois School of Professional Psychology in Chicago where she received a Master’s degree, as well as her Doctorate in Clinical Psychology after completing her internship at the Valley Coastal Bend VA.

Brian Kline, PhD

Dr. Brian Kline works with adults and young adults and has expertise helping those with concerns about relationships, depression, anxiety (generalized, social, panic), trauma, career development, and identity development (gender, sexual, and racial/ethnicity identity development). He graduated with honors from State University of New York, Buffalo State College, and he earned his M.A. and Ph.D. from the University at Buffalo, State University of New York.

Hannah Cavell Langley, PhD

Dr. Hannah Cavell Langley specializes in behavioral pediatrics, skillfully addressing the psychological needs of children and their families.

Sharla Marek, PhD

Dr. Sharla Marek is a counseling psychologist who specializes in work with children, adolescents, and adults. Dr. Marek completed her PhD in Counseling Psychology in 2002 from the University of Houston.

Nicholas Oleen-Junk, PhD

Dr. Oleen-Junk completed his Ph.D. in Counseling Psychology at the University of Wisconsin-Madison, where he trained in forensic psychology, college student mental health, and multicultural counseling. After finishing his clinical internship at the University of Minnesota’s student counseling center, he worked as a postdoctoral fellow at the University of Kansas Medical Center, where he provided individual, couple, and group counseling to health science students and young medical professionals. Prior to relocating to Houston, Dr. Oleen-Junk served as a Staff Psychologist at Tulane University’s student counseling center in New Orleans.