Casey Anthony says became pregnant with caylee after passing out at party

. Casey Anthony told a psychiatrist that she became pregnant with her daughter, Caylee, after passing out at a party when she was 18 years old, according to depositions in which the doctor said tests gave no indication that Anthony was mentally ill as she faced her murder trial.

The 25-year-old Anthony was acquitted last July of killing her 2-year-old daughter, Caylee, in a trial that captured the nation's attention. Anthony didn't know who fathered Caylee, the psychiatrist, Jeff Danziger, recounted in a deposition that was unsealed by a Florida judge and released Wednesday.

"Two beers, possibly given another drug. Woke up passed out," said Danziger, reading from notes he took during an interview with Anthony in November 2010. "Don't remember anything at a party, age 18. This is how she said she got pregnant."

Anthony is serving a year of probation at an undisclosed location in Florida on a check fraud charge.

Anthony showed no evidence of mental illness and had normal results on a psychological test, Danziger said in the deposition. He described that as surprising, given her circumstances in the Orange County Jail as a suspect in her daughter's slaying. Her temperament was calm, cooperative and pleasant, he said.

"You would expect that would provoke some measure of distress, whether someone genuinely did it, whether someone was falsely accused," Danziger said. "If my child was missing and I was in jail being accused of it, I probably wouldn't eat and wouldn't be cheerful and wouldn't be able to read."

Danziger said he was reluctant to recount all the information Anthony told him during his interviews with her, especially allegations that she had been sexually abused. He didn't want to become "a vector" of her allegations of crimes against individuals who may not have done anything wrong, he said.

During the trial, defense attorneys said Anthony's father molested her when she was young. George Anthony vehemently denied the allegation on the witness stand and defense attorneys provided no evidence to support it.

Caylee Anthony went missing in summer 2008, and her disappearance wasn't reported to authorities until a month later. Hundreds of volunteers searched for the missing girl. Anthony lied repeatedly to detectives, claiming a babysitter had kidnapped the toddler. At her murder trial, Anthony's defense attorneys claimed Caylee drowned accidentally.

Transcripts of the depositions had been sealed. But the Orlando Sentinel asked the court to make them public and Judge Belvin Perry agreed.