The Australian revealed that she had 100 dolls that "have sprit attachments", including one that she had brought to the interview with her, which she said had "a toddler child attached to her".
She explained: "Most of these dolls are antiques so I believe it could have been the original owners. A lot of children that passed away and attached to them."
Karina told Eamonn and Ruth Langsford that while she has had the dolls, a number of things have taken place that have convinced her that they have spirit attachments.
"I have seen a toddler child walking out of my room and I've heard a baby crying," she said.
Karina said she could communicate with the dead through her antique dolls
Eamonn and Ruth quizzed Karina about her collection of 700 dolls
We have to go to the afterlife now
She went on to insist that she does not allow her two young sons to play with the dolls, continuing: "I send my kids to a Catholic school and all of the dolls are locked away.
"But my children have said they've seen things in the house like shadow figures."
While Karina believed strongly that the dolls contained spirits, Eamonn and Ruth were not convinced with the former mocking their guest as the interview wrapped up.
Karina remained stoney-faced and unimpressed as he joked: "Just make sure that you don't watch Chucky then."
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Ruth was left shocked by Karina's claims that she had seen spirits in her home
The most cringeworthy moments from This Morning
Thu, September 29, 2016
The most controversial and cringeworthy moments from ITV's This Morning.
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Karina was unimpressed by Eamonn's jokes about the afterlife
As Ruth laughed at his remark, he cheekily added: "We have to go to the afterlife now. We're going to take a quick ad break."
And, it wasn't just presenters who were left bemused by the interview. Many at home also found Karina's claims hard to believe and took to social media to mock the interview.
One viewer tweeted: "You can tell Eamon questioning his journalistic degree by interviewing this nut job #thismorning."
While another asked: "How are they keeping their faces straight? #thismorning."