title: [Is the early brain organisation of spatial information conveyed by tactile stimuli performed in different ways in congenital and acquired blind children? A pilot study].
abstract: Cortical reorganization after congenital blindness is not sufficiently known yet it does offer an optimum window of opportunity to study the effects of absolute sensorial deprivation. Cross-modality in people with blindness has been documented, but it may differ in congenital blindness and in early blindness. Vibrotactile passive stimulation of lines and letters generates different electroencephalographic patterns with different source localizations in two children with blindness, aged 9 and 10, respectively with congenital blindness and early blindness with some remnants of vision. Most of the brain electrical activity is centered in auditive areas in P50 and P100 in the case of the child with congenital blindness, while the other shows activity in multiple areas. Reaction times to letters are shorter than to lines of different orientation in both children.
authors: Departamento de Psiquiatría, Facultad de Medicina, Universidad Complutense de Madrid, Avenida Complutense s/n, Madrid, Spain. tortiz@med.ucm.es
authors: Tomás
authors: T
authors: Ortiz
authors: Juan M
authors: JM
authors: Santos
authors: Laura
authors: L
authors: Ortiz-Teran
authors: Ramón
authors: R
authors: Nogales
authors: Isabel
authors: I
authors: Serrano-Marugán
authors: José M
authors: JM
authors: Martínez
authors: Carlos
authors: C
authors: Minguito-García
authors: Carmen
authors: C
authors: Requena
authors: Joaquín
authors: J
authors: Poch-Broto
mesh_terms: D001766:Blindness / Q000151:congenital* / Q000503:physiopathology*; D001921:Brain / Q000254:growth & development*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D010865:Pilot Projects; D013028:Space Perception / Q000502:physiology*; D014110:Touch / Q000502:physiology*