Updated

Testimony resumes in Jodi Arias' death penalty trial after an expert explained last week how she suffers from post-traumatic stress disorder and memory loss since killing her lover in Arizona.

Arias is charged with first-degree murder in the June 2008 death of Travis Alexander in his suburban Phoenix home.

Authorities say she planned the attack. Arias initially told authorities she had nothing to do with it then blamed it on masked intruders. Two years after her arrest, she said it was self-defense.

Psychologist Richard Samuels, a defense witness, was set to resume testimony Monday. Arguments were set to determine whether the judge would allow Samuels to testify if the killing appeared premeditated based on interviews with Arias and a review of crime scene photos.

___

Follow Brian Skoloff at http://twitter.com/bskoloff.