We compare fMRI-BOLD responses in anesthetized cats with local field potentials (LFPs), aggregate high-frequency responses (analog-Mua) and spiking activity recorded in primary and higher visual cortex of alert animals. The similarity of the activations in these elec-trophysiological signals to those in the BOLD is quantified by counting recording sites where different stimuli elicit the same rela-tive activation as in the imaging experiments. Using artificial stimuli, a comparison of BOLD and LFP strongly depends on the frequency range used. Stimulating with complex or natural stimuli reduces this frequency dependence and yields a good match of LFP and BOLD. In general, this match is best between 20 and 50 Hz. The measures of high-frequenc...
AbstractExtracellular local field potentials (LFPs) and multiunit activity (MUA) reflect the spatial...
<br>Background: Simultaneous intracortical recordings of neural activity and blood-oxygen-leve...
Local field potentials (LFPs) reflect subthreshold integrative processes that complement spike train...
We compare fMRI-BOLD responses in anesthetized cats with local field potentials (LFPs), aggregate hi...
We compare fMRI-BOLD responses in anesthetized cats with local field potentials (LFPs), aggregate hi...
Functional imaging methods monitor neural activity by measuring hemodynamic signals. These are more ...
Studies on processing in primary visual areas often use artificial stimuli such as bars or gratings....
The local field potential (LFP) is a population measure of neuronal activity complementary to spike ...
Functional magnetic resonance imaging (fMRI) is widely used to study the operational organization of...
Studies on visual processing often rely on highly artificial stimuli such as bars or gratings. As a ...
The brain is highly complex, and studying it requires simplifying experiments, analyses, and theorie...
SummaryBackgroundSimultaneous intracortical recordings of neural activity and blood-oxygen-level-dep...
We report the results of our experimental and theoretical investigations of the neural response dyna...
Background Simultaneous intracortical recordings of neural activity and blood-oxygen-level-dependent...
AbstractOptical imaging data show that the cat's visual cortex contains patches of cells that respon...
AbstractExtracellular local field potentials (LFPs) and multiunit activity (MUA) reflect the spatial...
<br>Background: Simultaneous intracortical recordings of neural activity and blood-oxygen-leve...
Local field potentials (LFPs) reflect subthreshold integrative processes that complement spike train...
We compare fMRI-BOLD responses in anesthetized cats with local field potentials (LFPs), aggregate hi...
We compare fMRI-BOLD responses in anesthetized cats with local field potentials (LFPs), aggregate hi...
Functional imaging methods monitor neural activity by measuring hemodynamic signals. These are more ...
Studies on processing in primary visual areas often use artificial stimuli such as bars or gratings....
The local field potential (LFP) is a population measure of neuronal activity complementary to spike ...
Functional magnetic resonance imaging (fMRI) is widely used to study the operational organization of...
Studies on visual processing often rely on highly artificial stimuli such as bars or gratings. As a ...
The brain is highly complex, and studying it requires simplifying experiments, analyses, and theorie...
SummaryBackgroundSimultaneous intracortical recordings of neural activity and blood-oxygen-level-dep...
We report the results of our experimental and theoretical investigations of the neural response dyna...
Background Simultaneous intracortical recordings of neural activity and blood-oxygen-level-dependent...
AbstractOptical imaging data show that the cat's visual cortex contains patches of cells that respon...
AbstractExtracellular local field potentials (LFPs) and multiunit activity (MUA) reflect the spatial...
<br>Background: Simultaneous intracortical recordings of neural activity and blood-oxygen-leve...
Local field potentials (LFPs) reflect subthreshold integrative processes that complement spike train...