Testimony resumes in Jodi Arias' murder trial as a defense attorney attacks the credibility of a prosecution witness who says the defendant wasn't a battered woman and doesn't suffer from post-traumatic stress disorder.

Clinical psychologist Janeen DeMarte has been on the stand since Tuesday after the defense rested its case. The prosecutor is now calling rebuttal witnesses.

DeMarte is working to discredit defense experts who diagnosed Arias with PTSD, amnesia and battered woman's syndrome.

DeMarte resumes testimony Thursday after explaining this week Arias suffers from none of the disorders.

Arias claims self-defense but faces a potential death sentence if convicted of first-degree murder in Travis Alexander's 2008 killing.

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Brian Skoloff can be followed at https://twitter.com/bskoloff