(CNN) -- Facing the world after an isolating and traumatic experience is often stressful, especially for those who have been away for a long time.



Jaycee Dugard, here at the 1991 Rose Bowl parade, was abducted later that year.



Jaycee Dugard is reuniting with her close relatives for the first time in 18 years, after having been found on August 27. Dugard was 11 years old when she was abducted in 1991 from a bus stop in South Lake Tahoe, California. She allegedly was kept in a series of backyard sheds by a convicted sex offender and gave birth to two children in captivity.



A bail review hearing is scheduled for Monday in El Dorado County Superior Court in Placerville, California, for Phillip and Nancy Garrido, who face charges related to Dugard's kidnapping.



In Illinois, Shannon Wilfong is charged with child abduction, allegedly having forced 6-year-old Richard K. Wilfong Chekevdia to live in seclusion and be hidden, at times in crawl spaces and the attic, for nearly two years, according to court documents. In concealing the boy, Wilfong violated the terms of a court order that granted joint custody of the child to Michael Chekevdia, the documents said. The boy is staying with his father's family under child welfare supervision, according to CNN affiliate WSIL.



The situations of Dugard and Chekevdia are extreme cases of people emerging from isolation and returning to the real world. The people who have been away often feel conflicted about leaving the situation they've acclimated to in order to rejoin the loved ones they've left behind, experts not connected to the cases tell CNN.



Sometimes children involved in custody disputes are taught to hate their father or mother, and "extreme tactics" may be used, although usually not to the extent of hiding a child in crawl spaces, said Jay Lebow, psychologist at The Family Institute at Northwestern University.



"While this case is obviously the rarest of things, other children are certainly exposed to many traumas that have meaning connected to this," Lebow said.



The case of Dugard



Dugard is spending time in "a secluded place, reconnecting" with her mother and younger sister, said her aunt, Tina Dugard, in a statement on behalf of her family. "This is a joyful time for my family," she said. "Jaycee remembers all of us."  Watch for more on Dugard »



But a person in Dugard's situation would most likely have both positive and negative feelings about leaving the only environment she's known for 18 years and coming back to her family, psychologists say.



"She's going to have a lot of mixed feelings about returning to her family of origin because she's spent almost two decades with a different family," said Margo Napoletano, a child and family psychologist in San Diego, California.



After allegedly being confined for 18 years, Dugard probably would find the outside world frightening, Lebow said. "You get to know this world you live in -- it may be a terrible world, but it's the world you know," he said.



Experts say Dugard may have developed what is known as Stockholm syndrome, in which kidnapping victims identify with their captors. Learning to live with and even like the perpetrator has survival value, Napoletano said, and also explains why someone like Dugard probably would feel somewhat torn about returning to her original family.  Learn about other cases of missing children »



"It's a concept that explains why a kidnapped victim would stay with a perpetrator even though they had an opportunity to leave," she said. "They opt to stay because it's their comfort zone."



But Johanna Tabin, a psychologist in Glencoe, Illinois, said Dugard's readjustment will depend on how she was treated in captivity. Police said Phillip Garrido, one of her alleged abductors, is believed to be the father of her two daughters, and his relationship to Dugard -- whether he framed their alleged sexual encounters as violent or seductive -- will influence her feelings about leaving that situation, Tabin said.



It is also important to know how Dugard felt about her family
When was Dugard reunited with her family? What does the expert say? What do people feel after returning to their families? who return to their families? What do people returning to their families often feel about it? Who was found on August 27?
first time in 18 years, after having been found on August 27. is known as Stockholm syndrome, conflicted about leaving the situation they've acclimated Dugard and Chekevdia leaving the situation they've acclimated Jaycee Dugard
question: When was Dugard reunited with her family?, answer: first time in 18 years, after having been found on August 27. | question: What does the expert say?, answer: is known as Stockholm syndrome, | question: What do people feel after returning to their families?, answer: conflicted about leaving the situation they've acclimated | question: who return to their families?, answer: Dugard and Chekevdia | question: What do people returning to their families often feel about it?, answer: leaving the situation they've acclimated | question: Who was found on August 27?, answer: Jaycee Dugard