Results 11 to 20 of about 97 (77)

Changes in quantitative EEG absolute power during the task of catching an object in free fall Mudanças na potência absoluta no EEG quantitativo durante tarefa de apreensão de um objeto em queda livre [PDF]

Arquivos de Neuro-Psiquiatria, 2007
The aim of this study was to verify changes in absolute power (qEEG), in theta, during the catch of a free falling object. The sample consisted of 10 healthy individuals, of both genders, with ages between 25 and 40 years.
Sergio Machado, Cláudio Elidio Portella, Julio Guilherme Silva, Bruna Velasques, Patrícia Terra, Camila Ferreira Vorkapic, Vernon Furtado da Silva, Luis Miana, Luis Basile, Mauricio Cagy, Roberto Piedade, Pedro Ribeiro   +11 more
doaj   +2 more sources

Beta and alpha electroencephalographic activity changes after acute exercise Alterações eletrencefalográficas nas bandas de frequência alfa e beta após exercício de esforço máximo

Arquivos de Neuro-Psiquiatria, 2007
Exercise has been widely related to changes in cortical activation and enhanced brain functioning. Quantitative electroencephalography (qEEG) is frequently used to investigate normal and pathological conditions in the brain cortex.
Helena Moraes, Camila Ferreira, Andréa Deslandes, Mauricio Cagy, Fernando Pompeu, Pedro Ribeiro, Roberto Piedade   +6 more
doaj   +2 more sources

EEG spectral cohrence inter and intrahemispheric during catching object fall task Coerência espectral do eletrencefalograma inter e intra-hemisférica durante a tarefa de apreensão de um objeto em queda livre

Arquivos de Neuro-Psiquiatria, 2007
The aim of the present study was to evaluate coherence measures at Theta through qEEG during the accomplishment of a specific motor task. The sample consisted of 23 healthy individuals, both sexes, with ages varying between 25 and 40 years old.
Cláudio Elidio Portella, Julio Guilherme Silva, Sergio Machado, Bruna Velasques, Victor Hugo do Vale Bastos, Camila Ferreira-Vorkapic, Patrícia Terra, Vladimir Lopes, Mauricio Cagy, Eduardo de Carvalho, Marco Orsini, Luis Basile, Roberto Piedade, Pedro Ribeiro   +13 more
doaj   +2 more sources

Effects of a cognitive modulator in the theta and alpha asymmetry during a typewriting task: a sensorimotor integration perspective Efeitos de um modulador cognitivo na assimetria de teta e alfa durante uma tarefa de datilografia: uma perspectiva da integração sensório-motora

Arquivos de Neuro-Psiquiatria, 2009
This study aimed to elucidate cortical mechanisms and to identify the areas where occur such mechanisms due to interaction between bromazepam and motor learning.
Marlo Cunha, Sergio Machado, Luiz Cláudio Miana, Dionis Machado, Victor Hugo Bastos, Bruna Velasques, Maurício Cagy, Luis F. Basile, Roberto Piedade, Pedro Ribeiro   +9 more
doaj   +2 more sources

The influence of bromazepam on cortical power distribution

Anais da Academia Brasileira de Ciências, 2008
The EEG has been widely employed in the assessment of electrophysiological changes induced by distinct medications. Its sensibility in detecting alterations produced by a specific substance may be enhanced by methods of quantitative analyses (qEEG).
Isabel Sampaio, Fernanda Puga, Heloisa Veiga, Mauricio Cagy, Roberto Piedade, Pedro Ribeiro   +5 more
doaj   +2 more sources

Posterior parietal cortex role in a sensorimotor task performance Papel do córtex parietal posterior na realização de uma tarefa sensório-motora [PDF]

Arquivos de Neuro-Psiquiatria, 2008
This study aimed to elucidate electrophysiological and cortical mechanisms involved in anticipatory actions when individuals had to catch balls in free drop; specifically through quantitative electroencephalography (qEEG) alpha absolute power changes ...
Sergio Nader, Sergio Machado, Marlo Cunha, Cláudio Elidio Portella, Julio Guilherme Silva, Bruna Velasques, Victor Hugo Bastos, Luis Basile, Mauricio Cagy, Roberto Piedade, Pedro Ribeiro   +10 more
doaj   +3 more sources

Proton magnetic resonance neurospectroscopy and EEG cartography in corticobasal degeneration: correlations with neuropsychological signs. [PDF]

J Neurol Neurosurg Psychiatry, 2004
Objective: To document the asymmetrical functional brain lesions in corticobasal degeneration (CBD) using proton magnetic resonance neurospectroscopy (MRS) and EEG cartography (EEGq).
Vion-Dury J, Rochefort N, Michotey P, Planche D, Ceccaldi M.   +4 more
europepmc   +2 more sources

Patrones de EEGq en pacientes con Alzheimer: revisión sistemática [PDF]

, 2023
os primeros cambios que vemos en el Alzheimer son en las regiones frontocentrales con aumentos de oscilaciones y frecuencias en beta, alfa y gama, así como la disminución de las mismas en delta.
Rodríguez Picón, Camila Estefanía, Coello Yunga, Brigette Andrea   +1 more
core   +1 more source

Meditation and music: EEGq and brain functional networks

, 2022
Introduction: It is known that different types of meditation induce different responses in brain activity. Among these different types, there are those accompanied by music, however, little is known about the role of this tool in the brain electrical ...
Costa, Naíma Loureiro de Souza
core   +1 more source

Motor learning processes: an electrophysiologic perspective Processos de aprendizagem motora: uma perspectiva eletrofisiológica

Arquivos de Neuro-Psiquiatria, 2007
The goal of the present study was to investigate electrophysiologic, qEEG, changes when individuals were exposed to a motor task. Subjects’ brain electrical activity was analyzed before and after the typewriting training task.
Bruna Velasques, Camila Ferreira, Silmar Silva Teixeira, Vernon Furtado, Elizabeth Mendes, Luis Basile, Mauricio Cagy, Roberto Piedade, Pedro Ribeiro   +8 more
doaj   +1 more source