Maj. Nidal Hasan's attorneys are expected to ask the judge for expert assistance at the government's expense.
The Army psychiatrist charged in the 2009 Fort Hood shootings is scheduled to face a military judge Thursday.
Maj. Nidal Hasan is accused of killing 13 people and wounding dozens more in the worst mass shooting on a U.S. military installation.
Hasan is scheduled for a hearing at the Lawrence J. Williams Judicial Center at Fort Hood at 10 a.m.
The last time Hasan made a court appearance was in July 20, for his arraignment.
During the hearing, Hasan notified military judge Col. Gregory Goss that he was dismissing his civilian attorney and wished to be represented by three military attorneys.
During Thursday's hearing, Hasan's attorneys are expected to ask Goss if Hasan is entitled to receive different types of expert assistance at government expense.
His trial is scheduled to begin March 5. He faces the death penalty if convicted.