2006
DOI: 10.1016/j.biopsych.2005.06.015
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Cortical Gray and White Brain Tissue Volume in Adolescents and Adults with Autism

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Cited by 158 publications
(116 citation statements)
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“…The regional reduction in the volume of the frontal horn of the left ventricle (and the strong trend to a regional reduction in the right frontal ventricular volume) could therefore be a reflection of excessive frontal growth. Similarly, the regional reduction in the size of the left occipital horn could be secondary to excessive growth of the temporal or occipital lobes, which has been noted in some studies of autism (Piven et al, 1996;Hazlett et al, 2006). Alternatively, the reduction in size of the left frontal horn could be related to abnormalities of the caudate nucleus.…”
Section: Discussionmentioning
confidence: 90%
See 1 more Smart Citation
“…The regional reduction in the volume of the frontal horn of the left ventricle (and the strong trend to a regional reduction in the right frontal ventricular volume) could therefore be a reflection of excessive frontal growth. Similarly, the regional reduction in the size of the left occipital horn could be secondary to excessive growth of the temporal or occipital lobes, which has been noted in some studies of autism (Piven et al, 1996;Hazlett et al, 2006). Alternatively, the reduction in size of the left frontal horn could be related to abnormalities of the caudate nucleus.…”
Section: Discussionmentioning
confidence: 90%
“…The overall excess in brain volume in patients with autism may result from abnormally high rates of growth for both gray and white matter in early childhood (Courchesne et al, 2001;Herbert et al, 2003;Hazlett et al, 2005Hazlett et al, , 2006. This early hypertrophy might be expected to influence the volume or shape of the lateral ventricles, but magnetic resonance imaging (MRI) studies of lateral ventricular anatomy in autism have yielded inconsistent results.…”
Section: Introductionmentioning
confidence: 99%
“…Across these studies, grey matter volumes within frontal and temporal lobes were significantly increased in children and adolescents with ASD compared to typically developing individuals (Bloss & Courchesne, 2007;Carper, Moses, Tigue, & Courchesne, 2002;Courchesne, Campbell, & Solso, 2011;Hazlett, Poe, Gerig, Smith, & Piven, 2006;Kates et al, 2004;Palmen et al, 2005;Schumann et al, 2010). However, volumetric measurements of lobular regions do not provide spatially localized information on grey matter abnormalities.…”
Section: Introductionmentioning
confidence: 97%
“…En los años siguientes (6-16 años) se produce una disminución, incluso parada, en la tasa de aumento de dicho volumen, para ser similar a la población de la misma edad sin TEA (Aylward, Minshew, Field, Sparks & Singh, 2002;Sparks et al 2002;Courchesne et al 2004;Courchesne & Pierce, 2005). Este crecimiento volumétrico excesivo se observó en los lóbulos frontales y en los lóbulos temporales Courchesne et al, 2007;Courchesne, Webb & Schumann, 2010;Carper, Moses, Tigue & Courchesne, 2002;Courchesne, Campbell & Solso, 2011a;Hazlett, Poe, Gerig, Smith & Piven, 2006;Palmen et al, 2005) y en los lóbulos parietales (Carper & Courchesne, 2000;Carper et al, 2002;Sparks et al, 2002;Herbert et al, 2004), aunque el mayor aumento de volumen se produce en el lóbulo frontal, especialmente, en la corteza frontal medial que incluye la corteza prefrontal dorsolateral y el córtex cingulado anterior (Carper et al, 2002;Carper & Courchesne, 2005;Herbert et al, 2004). En general, el volumen de sustancia blanca era mayor que el de sustancia gris Sparks et al, 2002;Carper et al, 2002;Hazlett et al, 2005), siendo menor el aumento de sustancia blanca en la corteza parietal y de sustancia gris en la corteza temporal.…”
Section: Estudios Del Volumen Cerebral En Teaunclassified
“…Las trayectorias de crecimiento entre 2 y 4 años de edad no difirieron entre los niños con autismo y los controles. Los autores sugieren que, de acuerdo con las publicaciones anterior sobre las tasas de crecimiento del perímetro craneal en el autismo (Hazlett, Poe, Gerig, Smith & Piven, 2006) y de acuerdo con los estudios del volumen de la amígdala en la infancia (Schumann et al, 2004;Sparks et al, 2002;Munson et al, 2006) las trayectorias de crecimiento de la amígdala se aceleran antes de los 2 años de edad en el autismo y se mantienen durante la primera infancia. Además, la ampliación de amígdala en niños de 2 años de edad con autismo es desproporcionada a la ampliación global del cerebro y sigue siendo desproporcionado a los 4 años de edad.…”
Section: La Amígdalaunclassified