Also Included In: Pediatrics / Children's Health; Sleep / Sleep Disorders / Insomnia
Article Date: 29 May 2013 - 14:00 PDT Current ratings for:
Brain Activity In Sleep May Impact Emotional Disturbances In Children With ADHD
Sleep consolidates emotional memories in healthy children but not those with ADHD
Sleep consolidates emotional memories in healthy children but not in children with attention-deficit hyperactivity disorder (ADHD), according to research published May 29 in the open access journal PLOS ONE by TK and colleagues from TK. The study suggests these deficits in sleep-related emotional processing may exacerbate emotional problems experienced in the daytime by children with ADHD.
For the study, healthy adults, healthy children and children with ADHD were shown pictures that had emotional relevance, such as a scary animal, or neutral pictures showing an umbrella or lamp. Participants were shown pictures in the evening, their brain activity was monitored as they slept, and recollections were tested the following morning. The researchers found that during sleep, regions of the brain thought to support consolidation of emotional memories were most active in healthy children, less so in healthy adults and least active in children with ADHD.
The study states, "While several studies reported a benefit from sleep with respect to emotional memory in healthy individuals, our results showed for the first time that healthy children outperform healthy adults." However, the authors add that this may be, in part, attributable to the child-oriented pictures used as stimuli.
Their results support the idea that frontal brain activity is critically to the consolidation of emotional memory in sleep, and this brain region is also implicated in the emotional symptoms seen in children suffering from ADHD. The authors add that further studies are needed to confirm whether this function of sleep in forming emotional memories develops with time in adults with ADHD, or whether the dysfunction persists in ADHD sufferers of all ages.
Article adapted by Medical News Today from original press release. Click 'references' tab above for source.Visit our adhd section for the latest news on this subject. “Sleep Promotes Consolidation of Emotional Memory in Healthy Children but Not in Children with Attention-Deficit Hyperactivity Disorder”,
Prehn-Kristensen A, Munz M, Molzow I, Wilhelm I, Wiesner CD, et al. (2013)
PLoS ONE 8(5): e65098. doi:10.1371/journal.pone.0065098
Financial Disclosure: This study was supported by a grant of the German research foundation (SFB 654, Plasticity and Sleep). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Competing Interest Statement: The authors have declared that no competing interests exist.
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3 Jun. 2013.
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'Brain Activity In Sleep May Impact Emotional Disturbances In Children With ADHD'
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