ORLANDO, Fla. -- A series of responses given by Casey Anthony during police interviews are not consistent with a desperate mother who wants to find her daughter, a psychologist told Local 6.

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IMAGES: Costumed Protesters Parade At Home
IMAGES: Fights Erupt Outside Anthony Home
IMAGES: Casey Released From Jail
EXCLUSIVE IMAGES: CSI Checks Casey's Car
IMAGES: Missing Caylee Anthony Photos
IMAGES: Photos Of Casey Anthony Surface

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"Most people who are interviewed by police officers don't manage their emotions that well," Dr. Deborah Day said of Casey Anthony during questioning over her daughter. "They get upset, they get agitated and they get angry."

Audio recordings of interviews conducted by investigators with Casey Anthony were released Friday by the Orange County Sheriff's Office.

Day listened to the interviews and said she believes Casey Anthony's tone and responses are detached.

"It is inconsistent," Day said. "That's a detachment. She is able to push her emotions aside during these interviews. I think she knows something. I don't know if she knows where her daughter is but she knows something."

In the taped interviews on July 16, detectives caught Anthony in a string of lies.

Day said Casey managed the stress of questioning disturbingly well.

"What happened to Caylee," an investigator asks on the tape.

"I don't know," Casey Anthony said.

"Sure you do," and investigator said.

"I don't know," Anthony said.

"Listen, something happened to Caylee," an investigator said. "We're not going to discuss where the last time you saw her (was). I'm guessing something bad happened to her some time ago and you haven't seen her, so that part is true -- is you haven't seen her because she's somewhere else right now."

"She's with someone else right now," Anthony said.

"She's either in a Dumpster right now, she's buried somewhere, she's out there somewhere and her rotten body is starting to decompose because what you're tellING us...," an investigator said. "Here's the problem. The longer this goes, the worse it's going to be for everyone. Right now, everything you've told us -- we've locked you into a lie. Every single thing that you've told us has been a lie."

Day said the only time she heard Casey Anthony get emotional on released tapes is when she talks about her relationship with her mother, Cindy. and not her daughter, Caylee, Local 6's Jessica D'Onofrio reported.

A detective was pressing Casey Anthony about how she wasn't living up to her mother's expectations.

Casey Anthony has admitted to lying to several times during the police recordings but never gives any reasons why she is lying, D'Onofrio reported.

Costumed Protesters Parade

Meanwhile, aggressive protesters outside the home of Casey Anthony and her parents, including a group dressing up as demons and monsters, have prompted the neighborhood home owner's association to file a lawsuit against the crowds.

Crowds of tourists and Central Floridians have traveled to the Orange County home of Casey Anthony and her parents daily since the woman was released from jail and allowed to return home. A search continues for her missing daughter, Caylee, 3.

Friday, Local 6 learned that the Chickasaw Oaks Homeowner's Association is suing the protesters and fighting to stop demonstrators from disrupting the peace.

The HOA wants to basically set up a protest zone down the street from Casey Anthony's home, Local 6's Mike DeForest reported.

The HOA claims that the protesters have forced at least one homeowner to put their home up for sale.

The association is asking a judge to limit where and when the protests can occur.

According to the lawsuit: "The association is seeking to reasonably limit the nuisance activities that have caused irreparable harm and damage to the quiet use and enjoyment of the residential neighborhood."

The protesters are being offered a piece of vacant property on which to congregate. The land is about a block away from the Anthony home.

Some people said they have a right to be heard at the Anthony's home.

"All I want today is for the whole United States of America to never, ever send the (Anthony) family any money," demonstrator Sharon Reed said.