Cingulate Gyrus
Mostrando 13-24 de 47 artigos, teses e dissertações.
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13. Engagement of multifocal neural circuits during recall of autobiographical happy events
Happy emotional states have not been extensively explored in functional magnetic resonance imaging studies using autobiographic recall paradigms. We investigated the brain circuitry engaged during induction of happiness by standardized script-driven autobiographical recall in 11 healthy subjects (6 males), aged 32.4 ± 7.2 years, without physical or psychiat
Brazilian Journal of Medical and Biological Research. Publicado em: 2008-12
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14. Espectroscopia por ressonância magnética de prótons em epilepsia mioclônica juvenil sugere o comprometimento de uma rede neuronal específica
OBJECTIVES: The neuroanatomical basis and the neurochemical abnormalities that underlay juvenile myoclonic epilepsy (JME) are not fully defined. While the thalamus plays a central role in synchronization of widespread regions of the cerebral cortex during a seizure, emerging evidence suggests that all cortical neurons may not be homogeneously involved. The p
Journal of Epilepsy and Clinical Neurophysiology. Publicado em: 2008-09
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15. Avaliação do tratamento de depressão em pacientes com doença de Parkinson através de ressonância magnética funcional / Evaluation of depression treatment in Parkinsons disease patients with functional magnetic resonance
The neural circuitry underlying depression in patients with Parkinsons disease (PD) is unknown, let alone the treatment effects of antidepressant therapy. Neuroimaging methods can give insights into the pathogenesis of depression and also in the mechanisms of action related to specific treatment choice. In order to evaluate differences between PD patients wi
Publicado em: 2008
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16. 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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17. Variabilidade da atividades cerebral em resposta a estímulos vestibular e ocolomotor avaliada por fMRI / Variability of cerebral activity in response to vestibular and oculomotor stimuli evaluated by fMRI
Assessing inter-variability of functional activations is of practical importance in the use of functional magnetic resonance imaging (fMRI) in clinical context. The main objective of this study is to analyze the variability of cerebral activation of the vestibular and oculomotor systems through an optokinetic horizontal, a pursuit and saccadic eye movement s
Publicado em: 2005
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18. Evaluation of Azheimer s Disease using Magnetic Resonance Spectroscopy : comparation of findings in the posterior cingulate and hippocampi / "Avaliação da doença de Alzheimer através da espectroscopia de prótons por ressonância magnética: comparação entre os achados no cíngulo posterior e nos hipocampos"
Foi realizada a comparação entre os achados de espectroscopia de prótons por ressonância magnética utilizando a sequência PRESS (point resolved spectroscopy), com TE curto (35ms) no cíngulo posterior e hipocampos de 29 pacientes com doença de Alzheimer (leve e moderada) e 15 controles. As relações de metabólitos com melhor sensibilidade e especifi
Publicado em: 2005
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19. Estudo comparativo do fluxo sanguineo cerebral regional (SPECT) entre pacientes esquizofrenicos e controle normais
The schizophrenia is a serious psychotic disturbance. It attacks preferably the young adults, causing injuries that extends to the individual s all life. It is of multifactorial etiology with genetics, environrnental and neurobiological aspects implied in its genesis. The neuroimaging studies have showed changes in the metabolism and in the regional cerebral
Publicado em: 1998
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20. Dissociable prefrontal brain systems for attention and emotion
The prefrontal cortex has been implicated in a variety of attentional, executive, and mnemonic mental operations, yet its functional organization is still highly debated. The present study used functional MRI to determine whether attentional and emotional functions are segregated into dissociable prefrontal networks in the human brain. Subjects discriminated
National Academy of Sciences.
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21. PERSONALITY CHANGES AFTER OPERATIONS ON THE CINGULATE GYRUS IN MAN
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22. Cerebral cortical hyperactivation in response to mental stress in patients with coronary artery disease
The central nervous system (CNS) effects of mental stress in patients with coronary artery disease (CAD) are unexplored. The present study used positron emission tomography (PET) to measure brain correlates of mental stress induced by an arithmetic serial subtraction task in CAD and healthy subjects. Mental stress resulted in hyperactivation in CAD patients
The National Academy of Sciences.
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23. Brain responses associated with consciousness of breathlessness (air hunger)
Little is known about the physiological mechanisms subserving the experience of air hunger and the affective control of breathing in humans. Acute hunger for air after inhalation of CO2 was studied in nine healthy volunteers with positron emission tomography. Subjective breathlessness was manipulated while end-tidal CO2- was held constant. Subjects expe
The National Academy of Sciences.
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24. Efferent connections of the pulvinar nucleus in the cat.
Discrete unilateral electrolytic lesions were placed in the pulvinar nucleus of cats using the stereotaxic approach. The pathways of the degenerated fibres and their terminals were traced to the cerebral cortex and to subcortical nuclei by the method of Fink-Heimer (anterograde degeneration). The cortical projection sites of the pulvinar are the following: s