The Star Beacon; Ashtabula, Ohio

World, nation, state

December 12, 2013

Parents who lash out at children can stunt brains

PHILADELPHIA — The scenes are too common for comfort: A mother grabs her daughter’s arm roughly on the bus. A father at a convenience store growls coarsely into his son’s ear.

Not legally defined as child abuse, it’s known as harsh or authoritarian parenting. Regardless of race or income level, mothers and fathers everywhere are capable of it.

But low-income parents who struggle with stresses from overwhelming issues such as hunger, or lack of a job or adequate housing, seem to engage in harsh parenting more often, researchers have concluded.

And children in poverty suffer from it in ways science is just beginning to understand.

Harsh parenting unleashes so-called toxic stress in children, researchers say, changing the structure   and   functionality   of   their

brains, heightening chances for negative behavior, and potentially condemning a child to a life hampered by heart disease, among other maladies.

“This is an incredibly important public health issue,” said Joan Luby, professor of psychiatry at the Washington University School of Medicine in St. Louis. After studying 145 children over 12 years, she authored an article about the effect of poverty on children’s brains in the journal JAMA Pediatrics in October.

Think of harsh parenting as an agent as destructive as lead poisoning, said Daniel Taylor, a pediatrician at St. Christopher’s Hospital for Children in North Philadelphia.

Such parenting, often involving “quick ’do-as-I-say’ orders from Mom or Dad without the buffering effect of a loving, supportive attitude,” causes the release in children of stress hormones such as cortisol that are toxic to developing brains, Taylor said.

One possible consequence is damage to a child’s amygdala, the part of the brain that regulates emotion. The child becomes hyperactive, gets into fights, has attention deficits and cannot be calm, Taylor said.

Toxic stress also damages the hippocampus, a part of the brain that affects memory, he said, so such children may have trouble remembering things, which impairs reading ability and test performance.

If toxic hormones are released constantly, children will suffer elevated blood pressure and sugar levels, as well as accelerated heart rates, making a person with toxic stress just as likely to develop heart disease as someone with high cholesterol, said social worker Marcy Witherspoon, an expert in Philadelphia on child welfare and brain development.

Taylor and others extrapolate that poor neighborhoods likely hold countless families suffering from compromised brain development, generation after generation.

“If a child’s developing brain was being damaged by high lead levels, landlords would be sued, houses repaired,” Taylor said. “If a child’s brain was being damaged by mercury in the water, the system would be changed.

“Who is going to pay, who is responsible for ensuring our children are not affected by the toxin of child poverty in America?

“We all are, and we’ll pay the price of neglecting to build strong children.”

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