Jodi Arias was busy reading and writing as jurors questioned defense expert Richard Samuels during her first-degree murder trial on Thursday.

Samuels is a PhD psychologist who was brought in by Arias' defense attorneys to testify on behalf of their client. He testified on March 14 that Arias has Post Traumatic Stress Disorder. He supported her "foggy" memory issues she claimed is the reason why she cannot recall how and exactly when she stabbed her victim, Travis Alexander, at least 27 times.

Prosecutor Juan Martinez said because Samuels is a PhD not an MD, he may not be qualified to use the PTSD diagnosis to support Arias' "foggy" memory claims. On Tuesday, Martinez cross-examined the defense expert again and through intense questioning the prosecutor brought up several inconsistencies in Samuels' diagnosis. Martinez discredited the psychologist's credibility when he read an article outloud in the Maricopa County court room that said one of the tests Samuels gave Arias to take, the MCMI exam, should not be used in a court of law.

The 12 men and women who will decide if Arias will be convicted, which could lead to her possibly being executed when sentenced for the 2008 murder of Alexander, submitted 100 questions to Samuels. Arizona is one of the few states that allows jurors to submit questions. Earlier in the trial, the jury submitted over 220 questions for Arias in the last few days of her testimonies. All juror questions are read aloud by Judge Sherry Stephens.

The questions asked by the 12 men and women indicated that they too questioned Arias' PTSD diagnosis. They also asked about her lies, amnesia, low self-esteem and other questions to determine if Alexander's death was pre-meditated.

Juror question: "Why do you think Arias had low self-esteem during her relationship with Alexander?"

Samuels said he believes Arias has low self-esteem based on his review of her journals and their meetings. He also said that low self-esteem is not normal.

Juror question: "Do you think you stepped over an ethical line when giving Arias a self-help book?"

Samuels said he did not break any rules including ethical ones, such as when he gave Arias a book because she was suicidal. He testified earlier that he gave her a self-book because she was depressed.

Juror question: "Can acute stress occur during a planned murder?"

Samuels said it is possible but not probable.

Juror question: "Is it possible for someone to foul psychologists into believing they have PTSD?"

Samuels said there is no way to know 100 percent, but he took into consideration the information he reviewed and this made him confident Arias has PTSD.

Juror question: "Do you 100 percent consensus in the memory loss theory?"

Samuels said psychology is not that precise.

Juror question: "Can Samuels be sure Arias is not lying to him?"

Samuels said basic aspects of her story are consistent and there is a strong probability she is now truthful.

Juror question: "Do you feel comfortable with diagnosing a person with a condition if they continually lie to you, hypothetically speaking?"

"Well if I knew someone was lying and what they were telling me was unsubstantiated by anything else and somehow I knew they were lying, I would not make a diagnosis. That would be inappropriate," Samuels responded.

Arias was charged for the 2008 murder of her ex-lover Alexander, a 30-year-old Mormon motivational speaker. She stabbed her victim over 27 times, slit his throat from ear to ear and shot him in the head. His body was discovered the day he was killed: June 4, 2008. Arias lied twice at first about how he died and later admitted that she killed him in an act of self-defense.

If Arias is convicted of the murder and the lies that she confessed to, she will likely face the death penalty and become the fourth woman in Arizona's history to die by lethal injection.

Watch the live stream video below to see defense expert Samuels answer jurors questions during Arias' murder trial.

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