title: Time knowledge difficulties following treatment for malignant cerebellar tumors.
abstract: In children treated for malignant cerebellar tumors, there are only a few studies investigating temporal skills, despite the role of the cerebellum in time processing being generally acknowledged. Children's time knowledge has been defined as the correct representation and use of familiar time units. The present study compares time knowledge in 38 children treated for malignant cerebellar tumors (mean age 11.6 years) with 105 typically-developing (TD) children. The performances on all time knowledge subtests were significantly lower in the tumor group. The results also confirm a lower mean IQ in the children treated for cerebellar tumors, related to slower processing speed and poorer performance on working memory and non-verbal tasks. However, the lower IQ does not explain the considerable difficulties in the acquisition of time knowledge. These results are discussed in the light of the role of the cerebellum in time processing and in the context of two different models of temporal processing: the internal clock model and the neural network state model.
authors.affiliation: a CESP, Faculté de médecine , Université Paris-Sud , Villejuif , France.|b Faculté de médecine - UVSQ, INSERM , Université Paris-Saclay , Villejuif , France.|c National Institute for Training and Research on Special Education, Université Paris Lumières , Suresnes , France.
authors.forename: Florence
authors.initials: F
authors.lastname: Labrell
authors.affiliation: a CESP, Faculté de médecine , Université Paris-Sud , Villejuif , France.|b Faculté de médecine - UVSQ, INSERM , Université Paris-Saclay , Villejuif , France.
authors.forename: Hugo
authors.initials: H
authors.lastname: Câmara-Costa
authors.affiliation: d Rehabilitation Department for Children with Acquired Neurological Injury , Hôpitaux de Saint Maurice , Saint Maurice , France.|e Groupe de Recherche Clinique Handicap Cognitif et Réadaptation , UPMC , Paris , France.|f Department of Pediatric and Adolescent Oncology , Gustave Roussy , Villejuif , France.
authors.forename: Virginie
authors.initials: V
authors.lastname: Kieffer
authors.affiliation: a CESP, Faculté de médecine , Université Paris-Sud , Villejuif , France.|b Faculté de médecine - UVSQ, INSERM , Université Paris-Saclay , Villejuif , France.
authors.forename: Georges
authors.initials: G
authors.lastname: Dellatolas
mesh_terms: D002528:Cerebellar Neoplasms / Q000628:therapy*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008570:Memory, Short-Term / Q000502:physiology*
keywords: Action-perception coupling; Child; Medulloblastoma; Time-processing