WBRZ - Baton Rouge

HOUSTON - Medical experts for jailed Texas financier R. Allen Stanford continue making their case that he is not competent to be tried next month on charges he bilked investors out of $7 billion in a massive Ponzi scheme.

A neurologist testified at a competency hearing Wednesday in Houston federal court that Stanford has difficulty with speech and his memory due to a "significant traumatic brain injury" the financier suffered during a September 2009 jail fight.

But federal prosecutors contend Stanford is mentally stable. They want Stanford's Jan. 23 trial to proceed.

Stanford had been declared incompetent in January due to an addiction to an anti-anxiety drug he developed while jailed in Houston. Doctors that treated Stanford at a North Carolina prison hospital say he is now competent.