{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,20]],"date-time":"2026-07-20T11:18:25Z","timestamp":1784546305532,"version":"3.55.0"},"reference-count":41,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,1,19]],"date-time":"2023-01-19T00:00:00Z","timestamp":1674086400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Russian Science Foundation","award":["20-65-47016"],"award-info":[{"award-number":["20-65-47016"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>Arthrogryposis multiplex congenita (AMC) and obstetrical brachial plexus palsy (OBPP) are motor disorders with similar symptoms (contractures and the disturbance of upper limb function). Both conditions present as flaccid paresis but differ from each other in the pathogenesis: AMC is a congenital condition, while OBPP results from trauma during childbirth. Despite this difference, these diseases are identical in terms of their manifestations and treatment programmes. We compared the cognitive skills of children with AMC and OBPP diagnoses with those of healthy children; we also compared the motor skills of impaired children with those of healthy ones. The patients in both groups significantly differed from the healthy children with regard to psychological parameters, such as \u2018visual memory capacity\u2019 and \u2018thinking\u2019. Moreover, the two groups with children with AMC and OBPP significantly differed from each other in motor skill parameters, such as \u2018delayed motor development\u2019, \u2018general motor development\u2019, and the \u2018level of paresis\u2019. Upper limb motor function in the OBPP children was less impaired compared to that of the AMC children. However, we did not find any significant differences in cognitive deficits between the AMC children and the OBPP children. This may indicate that motor impairment is more significant than the underlying cause for the development of cognitive impairment; however, the factors causing this phenomenon require further study (e.g., social environment, treatment, and rehabilitation programme).<\/jats:p>","DOI":"10.3390\/ijerph20031841","type":"journal-article","created":{"date-parts":[[2023,1,19]],"date-time":"2023-01-19T03:45:16Z","timestamp":1674099916000},"page":"1841","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Similar Cognitive Skill Impairment in Children with Upper Limb Motor Disorders Due to Arthrogryposis Multiplex Congenita and Obstetrical Brachial Plexus Palsy"],"prefix":"10.3390","volume":"20","author":[{"given":"Evgeny","family":"Blagovechtchenski","sequence":"first","affiliation":[{"name":"Centre for Cognition & Decision Making, Institute for Cognitive Neurosceince, National Research University Higher School of Economics, 101000 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"Koriakina","sequence":"additional","affiliation":[{"name":"Centre for Cognition & Decision Making, Institute for Cognitive Neurosceince, National Research University Higher School of Economics, 101000 Moscow, Russia"},{"name":"Federal State Budgetary Institution, The Turner Scientific Research Institute for Children\u2019s Orthopedics under the Ministry of Health of the Russian Federation, 196603 St. Petersburg, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dimitri","family":"Bredikhin","sequence":"additional","affiliation":[{"name":"Centre for Cognition & Decision Making, Institute for Cognitive Neurosceince, National Research University Higher School of Economics, 101000 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olga","family":"Agranovich","sequence":"additional","affiliation":[{"name":"Federal State Budgetary Institution, The Turner Scientific Research Institute for Children\u2019s Orthopedics under the Ministry of Health of the Russian Federation, 196603 St. Petersburg, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dzerassa","family":"Kadieva","sequence":"additional","affiliation":[{"name":"Centre for Cognition & Decision Making, Institute for Cognitive Neurosceince, National Research University Higher School of Economics, 101000 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6716-1034","authenticated-orcid":false,"given":"Evgenia","family":"Ermolovich","sequence":"additional","affiliation":[{"name":"Federal State Budgetary Institution, The Turner Scientific Research Institute for Children\u2019s Orthopedics under the Ministry of Health of the Russian Federation, 196603 St. Petersburg, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Iiro P.","family":"J\u00e4\u00e4skel\u00e4inen","sequence":"additional","affiliation":[{"name":"Centre for Cognition & Decision Making, Institute for Cognitive Neurosceince, National Research University Higher School of Economics, 101000 Moscow, Russia"},{"name":"Brain and Mind Laboratory, Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, 00076 Espoo, Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna N.","family":"Shestakova","sequence":"additional","affiliation":[{"name":"Centre for Cognition & Decision Making, Institute for Cognitive Neurosceince, National Research University Higher School of Economics, 101000 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"301","DOI":"10.3389\/fpsyg.2017.00301","article-title":"Editorial: Motor skills and their foundational role for perceptual, social, and cognitive development","volume":"8","author":"Libertus","year":"2017","journal-title":"Front. 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