Amanda Bynes
Actress Amanda Bynes arrives at the premiere of the film "Semi-Pro" in 2008. The actress announced her decision to retire from acting in 2010 on her Twitter account before later retracting her statement. Reuters

As rumors fly that troubled starlet Amanda Bynes is schizophrenic, a judge has granted doctors’ request to hold Bynes under psychiatric lockdown for two more weeks to properly evaluate her mental health.

TMZ reported that the hearing was held at the psychiatric institution where Bynes is currently housed, and doctors argued that releasing her would be a threat to herself and others. Bynes was admitted after starting a fire in the driveway of a suburban home in Thousand Oaks, Calif., on Monday.

A source revealed that although doctors found Bynes lucid for a good part of the day on Wednesday, they saw signs of the actress suffering from “severe mental illness with schizophrenic tendencies." Bynes is aware that "there's a good Amanda and a bad Amanda," and after 10 hours of acting normal, she went off the hook for about an hour on Wednesday, becoming incoherent and violent, according to TMZ.

Bynes reportedly asked about her pet dog, and when staff members informed her that her parents were taking care of the animal, she said, “They'll kill it, just like they tried to kill me," sources told TMZ.

Ana Rivera, a former friend of the actress, shed more light on Bynes’ bizarre behavior in an interview with media agency Coleman-Rayner, and said the actress is not often aware of what she is saying.

"Everything she said out loud, she thought she was saying in her head. She never even apologized, she just carried on," Rivera told the agency, according to New York Daily News. “When she says in public that it wasn't her, it must be an imposter, I don't think she's even aware or remembers going out in those outfits, and so (she) genuinely believes it's not her," Rivera said.

Bynes’ favorite pastime, according to Rivera, was watching Marilyn Monroe movies on mute, and wherever she stayed, Bynes would change her light bulbs to red. The troubled actress also kept to herself most of the time, Rivera said.

"She has a hard time talking to people because she's so weird," Rivera said. "She's all over the place. There's a lot of disorganization going on in her brain. She's literally only hanging out with her dog. Amanda desperately needs help.”