Parahippocampal Gyrus
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. A study on changes of the resting-state brain function network in patients with amnestic mild cognitive impairment
This study aimed to explore the structural and functional characteristics of the neural network of resting-state brain activities in patients with amnestic mild cognitive impairment (aMCI) by functional magnetic resonance imaging (fMRI) technology. Resting state fMRI scanning was performed on 10 clinically diagnosed aMCI patients and 10 healthy volunteers, a
Braz J Med Biol Res. Publicado em: 29/04/2019
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2. Alterações metabólicas cerebrais associadas aos fatores de risco cardiovascular: um estudo de tomografia por emissão de pósitron (PET) / Abnormalities on brain metabolism associated to cardiovascular risk factors: a positron emission tomography (PET) study
INTRODUCTION: Cardiovascular risk factors (CVRF) are known to affect cerebral blood flow, possibly contributing to cognitive decline and to the emergence of Alzheimers disease (AD), the commonest form of dementia. Positron emission tomography (PET) with 18-fluoro-2-deoxyglucose (18FFDG) has been widely used to demonstrate specific patterns of reduced brain g
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/12/2011
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3. Alterações cerebrais associadas à presença de déficits cognitivos em idosos: um estudo usando morfometria voxel-a-voxel por ressonância magnética / Brain abnormalities associated with the presence of cognitive impairment in elderly: an MRI study using voxel-based morphometry
Introduction: In studies with structural magnetic resonance imagery (MRI) and positron emission tomography (PET), methods of analysis voxel-by-voxel allow comparisons among groups of gray matter volume or glucose metabolisms in an automatized fashion all around the brain. In studies with cognitive disorder carriers, such as Alzheimers Disease (AD) compared t
Publicado em: 2010
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4. Longitudinal magnetic resonance imaging study of schizophrenia and schizophreniform disorder / Avaliação longitudinal de pacientes portadores de esquizofrenia e transtorno esquizofreniforme utilizando ressonância magnética de crânio
Morphometric brain abnormalities have been extensively described in subjects with schizophrenia in many structural magnetic resonance imaging studies, the most consistent findings being ventricular enlargement and gray matter reductions in frontal and temporal neocortices, insula, thalamus and hippocampus/parahippocampal gyri. However, the nature and course
Publicado em: 2008
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5. Correlation between memory and volume of brain structures in depressed elderly: a study using voxel-based morphometry / Correlação entre memória e volume de estruturas cerebrais em idosos deprimidos: um estudo de morfometria baseada no voxel
Déficits cognitivos e alterações cerebrais estruturais são comumente encontrados em idosos deprimidos. Este estudo teve como objetivos comparar o volume de regiões de interesse, hipocampo e giro para-hipocampal, de idosos com transtornos depressivos e sem transtornos depressivos utilizando a técnica de morfometria baseada no voxel, investigando se há
Publicado em: 2008
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6. Estudo comparativo com ressonância magnética cerebral em idosos com transtorno afetivo bipolar usuários ou não de litio / Comparative study with magnetic resonance imaging in elderly bipolar patients in use or non-use of lithium
Recent studies have demonstrated that lithium exerts relevant neuronal protective and regenerative effects both in vitro and in vivo. The aim of the study is to compare volumetric differences of gray matter regions associated with memory (hippocampus/parahipocampal gyrus, amygdala, posterior cingulate and precuneus) between 30 elderly bipolar patients using
Publicado em: 2007
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7. Structural magnetic resonance in subjects with psychotic affective disorders assessed in the first contact with the health care system / Ressonância magnética estrutural em pacientes com transtorno afetivo com características psicóticas avaliados no primeiro contato com serviço de saúde mental
Os transtornos afetivos são altamente prevalentes dentre os transtornos mentais, principalmente Transtorno Afetivo Bipolar (TAB) e Depressão Maior Unipolar (DMU), apresentando altas taxas de morbi-mortalidade. Estudos prévios de Ressonância Magnética (RM) têm identificado anormalidades estruturais cerebrais em indivíduos com TAB e DMU quando comparado
Publicado em: 2007
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8. Contribution of magnetic resonance volumetry of mesial and neocortical temporal structures in the surgical treatment of temporal lobe epilepsy / "Contribuição das medidas volumétricas das estruturas temporais mesiais e neocorticais ao tratamento cirúrgico da epilepsia do lobo temporal"
Temporal lobe epilepsy is the most commom form of focal epilepsy. Mesial temporal sclerosis is the usual etiology. Magnetic resonance volumetry may be a useful research tool, and may be used to lateralize hippocampal changes in surgical candidates, according to several reports. We performed temporal lobe volumetry in 69 consecutive patients of the Epilepsy S
Publicado em: 2003
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9. Naming difficulties in alexia with agraphia for kanji after a left posterior inferior temporal lesion.
The case is described of a patient with alexia and agraphia for kanji, and severe anomia after a subcortical haemorrhage in the left posterior inferior temporal area. Magnetic resonance imaging at four months after onset showed a lesion in the inferior temporal and fusiform gyri, extending from the temporo-occipital junction toward the anterior third of the
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10. Lingual and fusiform gyri in visual processing: a clinico-pathologic study of superior altitudinal hemianopia.
A macular-sparing superior altitudinal hemianopia with no visuo-psychic disturbance, except impaired visual learning, was associated with bilateral ischaemic necrosis of the lingual gyrus and only partial involvement of the fusiform gyrus on the left side. It is suggested that bilateral destruction of the lingual gyrus alone is not sufficient to affect compl
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11. The hippocampal formation participates in novel picture encoding: evidence from functional magnetic resonance imaging.
Considerable evidence exists to support the hypothesis that the hippocampus and related medial temporal lobe structures are crucial for the encoding and storage of information in long-term memory. Few human imaging studies, however, have successfully shown signal intensity changes in these areas during encoding or retrieval. Using functional magnetic resonan
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12. Where Is the Semantic System? A Critical Review and Meta-Analysis of 120 Functional Neuroimaging Studies
Semantic memory refers to knowledge about people, objects, actions, relations, self, and culture acquired through experience. The neural systems that store and retrieve this information have been studied for many years, but a consensus regarding their identity has not been reached. Using strict inclusion criteria, we analyzed 120 functional neuroimaging stud
Oxford University Press.