Allen Stanford's attempts to be declared unfit to stand trial continued today with a prison psychologist who evaluated the accused swindler testifying that it would be "incredibly rare" for a patient to suffer from the type of delayed memory loss the Texas financier says he has and makes him incompetent to stand trial.  The psychologist testified for the government at the start of a mental competency hearing in Houston that will decide if Stanford's criminal trial can go forward next month, scheduled for January 23. Stanford claims he suffers from retrograde amnesia, that is caused by addiction to anti-anxiety medication and a brain injury suffered in a 2009 jailhouse fight with another inmate which prevents him from recalling key events from his life prior to the 2009 fight. His lawyers plan to call several medical experts to testify about his condition. Prosecutors, on the other hand, say Stanford may have faked memory loss and there is no evidence to support his claims. Stanford, who is accused of running a $7 billion Ponzi scheme, has been in custody since his June 2009 arrest, entered the courtroom on Tuesday in handcuffs and leg shackles. The financier, who once owned luxury homes in the Caribbean, Houston and Miami, has been indicted on charges of fraud, conspiracy and money laundering. He has pleaded not guilty. In November, Stanford completed more than eight months of treatment at the Butner prison hospital in North Carolina.  U.S. District Judge David Hittner, who is overseeing the competency hearing ordered Stanford's treatment last January after he determined that Stanford at that time was not able to assist in his defense.  [Reuters  12/20/12]