Browsing by Author "6f38b6f8-b685-47f6-ae67-87a6dbd5b31d"
Now showing items 1-17 of 17
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Bajo Riesgo de Déficit Atencional / Hiperactividad en Niños Aymarás. Implicancias Genéticas, Antropológicas y Culturales
(Universidad de Tarapacá, Facultad de Ciencias Sociales Administrativas y Económicas, Departamento de Antropología, 2005-12)Se estudió la distribución de puntajes en la Escala de Conners que se utiliza para diagnosticar el trastorno por déficit atencional/ hiperactividad (TDAH) en niños del Liceo Agrícola “José Abelardo Núñez†, ubicado en ... -
Behavioral effects of manganese injected in the rat substantia nigra are potentiated by dicumarol, a DT-diaphorase inhibitor
(PERGAMON-ELSEVIER SCIENCE LTD, 2004-02)The purpose of this study was to evaluate the contribution of DT-diaphorase inhibition to in vivo neurodegenerative effects of dopamine (DA) oxidation to the corresponding o-quinones. The neurotoxicity to nigrostriatal DA ... -
Chronic fluoxetine treatment induces structural plasticity and selective changes in glutamate receptor subunits in the rat cerebral cortex
(PERGAMON-ELSEVIER SCIENCE LTD, 2010-08-11)It has been postulated that chronic administration of antidepressant drugs induces delayed structural and molecular adaptations at glutamatergic forebrain synapses that might underlie mood improvement. To gain further ... -
Chronic stress decreases the expression of sympathetic markers in the pineal gland and increases plasma melatonin concentration in rats
(BLACKWELL PUBLISHING, 2006-06)Chronic stress affects brain areas involved in learning and emotional responses. Although most studies have concentrated on the effect of stress on limbic-related brain structures, in this study we investigated whether ... -
Chronic stress impairs acoustic conditioning more than visual conditioning in rats: Morphological and behavioural evidence
(PERGAMON-ELSEVIER SCIENCE LTD, 2005)Chronic stress affects brain areas involved in learning and emotional responses. These alterations have been related with the development of cognitive deficits in major depression. The aim of this study was to determine ... -
Chronic stress induces upregulation of brain-derived neurotrophic factor (BDNF) rnRNA and integrin alpha 5 expression in the rat pineal gland
(ELSEVIER, 2006-05-01)Chronic stress affects brain areas involved in learning and emotional responses. These alterations have been related with the development of cognitive deficits in major depression. Moreover, stress induces deleterious ... -
Combinación de genotipos DRD4 y DAT1 constituye importante factor de riesgo en miembros de familias de Santiago de Chile con déficit atencional
(SOC MEDICA SANTIAGO, 2008-06)Background: Attention deficit/hyperactivity disorder (ADHD) is a common, highly heritable neurobiological disorder of childhood onset, characterized by hyperactivity, impulsiveness, and/or inattentiveness. Aim: To search ... -
Distribution of alleles of DRD4 and DAT1 genes of the dopaminergic system in the mixed Chilean population Distribución de alelos de los genes DRD4 y DAT1 del sistema dopaminérgico en la población mixta de Santiago de Chile
(2003)Background: Genes for dopamine receptor DRD4 and dopamine transporter DAT1 are highly polymorphic. Two alleles of these genes, namely the DRD4.7 and the DAT1*9 are frequently associated to the attention deficit disorder ... -
Efecto de la Desnutrición Oculta Prenatal Sobre la Histología del Esplenio Callosal
(2007)Adult rats malnourished prenatally with a low-protein, isocaloric diet showed smaller median fiber diameter of myelinated and unmyelinated fibers and a higher axonal density in the callosal splenium than controls. These ... -
Efecto del estrés sobre el sistema nervioso central
(Universidad de Chile, 2008) -
Exogenous orientingofvisual-spatialattention in ADHDchildren
(ElsevierB.V., 2013)Visual spatial orienting of attention towards exogenous cues has been one of the attentional functions considered to be spared in ADHD. Here we present a design in which 60 (30 ADHD) children, age: 10.9±1.4, were asked to ... -
Genotypic interaction between DRD4 and DAT1 loci is a high risk factor for attention-deficit/hyperactivity disorder in Chilean families
(WILEY-LISS, 2006-01-05)Attention-deficit/hyperactivity disorder, ADHD [MIM 126452], is a common, highly heritable neurobiological disorder of childhood onset, characterized by hyperactivity, impulsiveness, and/or inattentiveness. As part of an ... -
Neural Mechanisms of Human Perceptual Learning: Electrophysiological Evidence for a Two-Stage Process
(PUBLIC LIBRARY SCIENCE, 2011-04-26)Background: Humans and other animals change the way they perceive the world due to experience. This process has been labeled as perceptual learning, and implies that adult nervous systems can adaptively modify the way in ... -
P300 amplitude is insensitive to working memory load in schizophrenia
(BIOMED CENTRAL LTD, 2011-02-15)Background: Working memory (WM) tasks usually elicit a P300 ERP component, whose amplitude decreases with increasing WM load. So far, this effect has not been studied in schizophrenics (SZs), a group that is considered to ... -
Panama Safe Trucker
(Universidad de Chile, 2019-05)Panamá ha presentado un aumento de accidentes de transito, representado en un 32.8% del cierre del año 2017 en comparación con el cierre del año 2014. Al igual que la accidentabilidad de equipos de transporte y carga, ... -
Williams syndrome: Clinical, cytogenetic, neurophysiological and neuroanatomic features in 44 patients Síndrome de Williams: Estudio clínico, citogenético, neurofisiológico y neuroanatómico
(2002)Background: Williams syndrome (WS) is a genetically based disorder caused by deletion of elastin and contiguous genes on chromosome 7q11.23. This syndrome is characterized by multiorganic involvement with dysmorphic facial ... -
Williams syndrome: Pediatric, neurologic, and cognitive development
(ELSEVIER SCIENCE INC, 2005-03)This study examines the developmental history of 32 Williams syndrome patients, positive to the fluorescence in situ hybridization (FISH) test. The information is intended to provide help for early diagnosis and appropriate ...
