(Dec. 15, 2009)--Led by Joe L. Martinez Jr., UTSA Ewing Halsell Distinguished Chair in Biology, a team of UTSA researchers found that radiation therapy can prevent the brain from forming some types of fearful memories. Further research may lead to treatments for post-traumatic stress disorder and Alzheimer's disease.
Radiation therapy reduces the number of new granule cells in the hippocampus, the part of the brain responsible for autobiographical memory. Cranial irradiation, or radiation of the skull, is commonly used as a treatment to prevent cancer from spreading to the brain. However, long-term cognitive impairments, such as the inability to learn or remember new tasks, often occur as a result of the procedure.
The researchers tested the ability of rats to form three types of fear memories: delay fear memories, context fear memories and trace fear memories. Delay fear memories form when a fearful situation occurs simultaneously with another event. Context fear memories form when a fearful situation follows another event and both take place in the same physical space. Trace fear memories form when an event and a fearful situation are separated by a pause.
Combining biological and psychological approaches in the laboratory, the researchers observed the behavior of rats not producing new granule cells in their brains. The researchers observed that the rats were able to form delay and fear memories but were unable to form trace fear memories. The findings led them to believe that new granule cells are not required in the hippocampus of the brain to form delay and context fear memories but are required for the formation of trace fear memories.
"This research has broad applications including treatments for post-traumatic stress disorder and Alzheimer's disease," said Martinez. "If we can pinpoint the neurons in the hippocampus that are responsible for storing trace fear memories, we may be able to selectively erase negative memories by decreasing the number of new granule cells in the brain. Or, we may be able to prevent memory loss by preventing the death of new granule cells. Such therapies could definitely enhance an individual's life, but we have a long way to go before we put the theory into practice."
The Mexican American Studies Program will host a screening of this irreverent, entertaining and often disturbing tale that uses both fiction and documentary story telling devices to tear open a painful and long ignored history: the lynching of Mexican Americans in the southwest.
Buena Vista Building Aula Canaria (BV 1.328), Downtown Campus
Join President Ricardo Romo as he gives his address to the UTSA community.
H-E-B University Center Ballroom (UC 1.104), Main Campus
Join the College of Education and Human Development's Center for Educational Leadership, Policy and Professional Development for a discussion about what passed and what didn't in the last legislative session and what it means for Bexar County Public Schools.
Durango Building Southwest Room (DB 1.124), Main Campus
Graduate School representatives from across the country will provide information on options after earning a bachelor's degree. Students, alumni and community members are welcome.
University Center Retama Galleria, Main Campus
Kickstart your career as an entrepreneur at The University of Texas at San Antonio’s Center for Innovation, Technology and Entrepreneurship (CITE) Technology Entrepreneurship Boot Camp.
Business Building, Richard S. Liu Auditorium (BB 2.01.02), Main Campus
The UTSA College of Architecture, Construction and Planning, in partnership with AIA San Antonio’s Latinos in Architecture, presents architect Andrés Jaque, founder of the Office for Political Innovation, an architectural practice dually based in New York and Madrid.
Buena Vista Building, Aula Canaria Lecture Hall (BV 1.328), Downtown Campus
Looking for a good read? Shop for yourself or for gifts and help change a life at the same time. Browse and buy children’s stories, novels and more at the 2015 SECC Book Sale.
Sombrilla Plaza, Main Campus
The UTSA Music Department presents Emmy-award winning Composer Larry Groupe. Groupe has composed music for films such as "The Contender," "Straw Dogs" and "Miami Vice," and TV shows such as "Star Trek: The Next Generation," "Ren and Stimpy" and "American Gladiators." Lecture is free and open to the public.
Arts Building (2.03.15-18), Main Campus
Kristen Rosen is developing technology to help breast cancer patients’ quality of life
As touch screens and e-books demand more and more attention from both casual readers and scholars, many people say the handwriting is on the wall for the printed page.
At UTSA, the handwriting is on the wall for a library that doesn't have any printed books.
Since March 2010, the bookless library in the Applied Engineering and Technology Building has given UTSA students an innovative way to read, research and work with each other to solve problems.
With ultra-modern furniture and a décor featuring desktop computers, scanners and LCD screens, the AET Library is designed to engage students in an online format. But it also offers group study niches and study rooms with whiteboards and glass walls on which students can write. The space encourages teamwork, communications and problem solving for the next generation of scientists and professional engineers.
Did you know? The UTSA AET Library is the nation's first completely bookless library on a college or university campus. It served as a model for Bexar County's first-in-the-nation public bookless library system and one of its branches, the Dr. Ricardo Romo BiblioTech.
The University of Texas at San Antonio is dedicated to the advancement of knowledge through research and discovery, teaching and learning, community engagement and public service. As an institution of access and excellence, UTSA embraces multicultural traditions and serves as a center for intellectual and creative resources as well as a catalyst for socioeconomic development and the commercialization of intellectual property - for Texas, the nation and the world.
To be a premier public research university, providing access to educational excellence and preparing citizen leaders for the global environment.
We encourage an environment of dialogue and discovery, where integrity, excellence, inclusiveness, respect, collaboration and innovation are fostered.