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Featured Scholar: Robert Dickerson

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Featured Scholar: Robert Dickerson
Place of Publication:
Gainesville, Fla.
Publisher:
University of Florida
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Language:
English

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serial ( sobekcm )

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Source Institution:
University of Florida
Holding Location:
University of Florida
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All applicable rights reserved by the source institution and holding location.

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Featured Scholar:
Robert Dickerson


2004 - 2005 University Scholar
Mentor: Benjamin Lok
College of Engineering


Interested in computer graphics since his freshman year of high school, Robert Dickerson
imagined himself pursuing a career as a digital animator, creating animation used in
movies such as Shrek or Toy Story. "Then I found out that science needs people in
graphics too," says the 22-year-old computer engineering senior. As a University Scholar,
he has created a virtual patient for medical students to use to practice their interviewing
and diagnosis skills.

"What we are trying to do is mimic a standardized patient-actors who pretend they have
a disease and allow medical students to practice," Dickerson says. Through the
development of a digital animated avatar, students can now look face to face with a life-
sized patient named DIANA, a 19-year-old Caucasian virtual female who is able to make
eye contact, describe and indicate her illness, and answer questions about her
symptoms.

Working with mentor Benjamin Lok, an assistant professor in the Department of
Computer and Information Sciences and Engineering, Dickerson has been responsible for
designing DIANA's speech recognition and synthesis and working with a medical student
to write a script of the possible 900 questions a physician asks a patient during a 10-
minute interview. When pre-scripted to respond as a patient suffering from appendicitis,
DIANA holds her side and complains of severe stomach pain. She answers questions like
"Have you eaten anything different?" and "Can you rate your pain on a scale of 1 to 10?"

Accompanying DIANA is VIC (Virtual Interactive Character), an African-American
attending physician that can be enabled to step into DIANA's examining room and serve
as an instructor to the student. Using web cameras to monitor the student's position, VIC
can tell whether the student properly greets DIANA and makes adequate eye contact. He
also prompts the student for his or her diagnosis and evaluates performance.

The entire animation system is easily stored on a regular compact disc and can be pulled
up on any desktop computer, though it is suggested that the system be projected to life-
size onto a projection screen. The Medical College of Georgia has acquired the program,
and plans to begin using it next year. A patent is in the works, and the research team is
in the process of adding new features that would allow for monitoring body language,
eye-gaze and gestures.

Dickerson won a Best Paper Award at the annual University Scholars Program reception
on April 8 for his quantitative article, "Evaluating a Script-Based Approach for Simulating
Patient-Doctor Interaction." He has presented his work at two conferences-a Modeling
and Simulation Conference held in New Orleans in January and at VR 2005 in Germany in
March. Though he has already completed one year in the University Scholars Program, he
has been given the rare opportunity to continue with the program another year as a
2005-2006 scholar. Dickerson will graduate from UF in spring 2006 and plans to attend
graduate school and follow in his mentor's footsteps.

"I hope to pursue a PhD program in computer science and become a professor," he says.
"One day I hope to become a mentor to students like myself."

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