Testimony in Jodi Arias' death penalty trial has concluded for the week after a defense witness said she suffers from post-traumatic stress disorder.
Arias concluded 18 days of testimony on Wednesday, answering remaining questions from the jury and dueling with prosecuting attorney Juan Martinez about just how Travis Alexander was shot and stabbed the day he was killed in June 2008.
Arias' defense attorneys were supposed to get the chance to call more witnesses beginning at 10:30 a.m. Thursday in Maricopa County Superior Court, but the judge delayed the start of testimony until the afternoon because of a prosecutor's objections to a defense expert witness.
Psychologist Richard Samuels, a defense expert, took the stand Thursday despite the prosecution's objections and Samuels said Arias suffers from acute memory loss and PTSD.
Prosecutor Juan Martinez objected to the defense calling Samuels to the stand, claiming he is not a medical doctor and shouldn't be allowed to testify about the brain's function under stressful circumstances.
Arias is charged with first-degree murder in the death of Alexander in his suburban Phoenix home. He was stabbed, had his throat slit and was shot in the head. Authorities claim Arias planned the attack on her lover in a jealous rage. Arias claims it was self-defense. She says she recalls firing the gun but doesn't remember much else.
Arias testified over nearly six weeks on the witness stand before concluding her testimony on Wednesday.
Last week, jurors posed about 220 questions to Arias making it clear they aren't satisfied with her explanations. Arizona law allows jurors to quiz defendants through written questions read aloud by the judge. The panel had about 10 more questions Wednesday.
Stay with cbs5az.com for updates on this developing story.
Copyright 2013 CBS 5 (KPHO Broadcasting Corporation). All rights reserved. The Associated Press contributed to this report.
UPDATEExpert: Jodi Arias suffered from PTSD, memory lossMore>>
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