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Childhood maltreatment is associated with greater cognitive difficulties than previously thought

by Medical Xpress
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New research from the Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King’s College London and City University of New York suggests that the cognitive difficulties associated with childhood maltreatment, and particularly neglect, have been grossly underestimated in previous studies.

The research, published in Lancet Psychiatry, suggests that the overreliance on retrospective self-reports of in research has resulted in a biased evidence base that overlooks the challenges faced by children and young people with documented exposure to maltreatment.

Researchers in this study tested the relative associations of court-documented exposure to–and adult recall of–childhood maltreatment with within the same individuals. A group of 1,179 participants was identified from an ongoing cohort in the U.S. All participants underwent a variety of tests in order to assess their cognitive abilities in adult life.

Researchers found that participants with official records of childhood maltreatment showed, on average, cognitive deficits across most tests undertaken compared to those without records. In contrast, the participants who retrospectively self-reported maltreatment did not demonstrate deficits when compared with those without reports.

Researchers also noted that these findings were not consistent across the different types of maltreatment. Participants who had documented experiences of neglect demonstrated cognitive deficits, but those who had documented experiences of physical and sexual abuse did not.

Andrea Danese, Professor of Child & Adolescent Psychiatry at King’s IoPPN and one of the study’s co-authors, said, “While there are some important exceptions, most research in this area has relied on retrospective reports of from adult participants. Our study has shown that this reliance on retrospective reports has likely resulted in researchers and clinicians underestimating the extent to which individuals with documented cases of maltreatment, and particularly neglect, are experiencing cognitive deficits.

“Our study highlights the importance of identifying young people who have experienced neglect so that the proper support can be put in place; for example, to mitigate the negative consequences in education and employment.”

More research is needed to understand why individuals with documented histories of neglect have cognitive deficits. The researchers suspect this might be due to a lack of stimulation in childhood, the familial transmission of cognitive challenges, and/or the role of other experiences that often accompany , such as family poverty. Disentangling the mechanisms underlying the observed associations will provide helpful insights to develop effective interventions.

More information:
Objective and subjective experiences of childhood maltreatment and their relationships with cognitive deficits: a cohort study in the USA, The Lancet Psychiatry (2024). DOI: 10.1016/S2215-0366(24)00209-8

Citation:
Childhood maltreatment is associated with greater cognitive difficulties than previously thought (2024, August 13)
retrieved 13 August 2024
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