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Also in children and adolescents with BD, Cre levels were normal in the frontal cortex (81), posterior cingulate and occipital cortex (80).
It is consistent with recurrent seizures or status epilepticus of the occipital cortex; however, she did not experience multiple discrete episodes a day or generalized seizures experienced by most occipital seizure patients, and her EEG and clinical history are not consistent with seizures.
Many researchers associate the broad temporal range of the occipital cortex's responses to the presentation of a pattern with the hypothesis that there are two processes in the visual system: (a) categorization, identifying a stimulus as belonging to a certain class of stimuli, that is, sorting a number of stimuli into groups or clusters and (b) identification, recognition of a specific stimulus (Jolicoeur, Gluck, & Kosslyn, 1984; Rosch, Mervis, Gray, Johnson, & BoyesBraem, 1976; Sugase, Yamane, Ueno, & Kawano, 1999).
The heart was dissected and brain samples were taken from the three regions of the cerebral cortex (frontal, temporal, and occipital cortex) as well as the midbrain, using anatomical landmarks to ensure sampling of the same area from each monkey.
In the second task, the previous procedure performance diminished when it was preceded by rTMS at the medial occipital cortex.
There is deactivation in the medial parasagittal cortex extending up from the medial occipital cortex into the parietal region, and there is a small area of deactivation in the right and to a lesser extent left frontal cortices.
Our previous work in the field of visual attention and attention deficit hyperactivity disorder indicated that visual attention is associated with increased processing speed at the occipital cortex near the primary visual cortex (Silberstein et al., 1998).
They also examined synapses in the occipital cortex, an area involved in simple visual perception.
This is a test of electro-physiology, which measures the electrical activity in the back of the brain (the occipital cortex) when a person looks at different patterns of lines.
Indeed if Haksar had thought more about this he would have realised that split-brain experiments on visual perception could not work as they do unless the retina of each eye is connected to occipital cortex of both hemispheres.
The following structures were sampled: frontal lobe (superior middle and inferior frontal gyri), cingulate gyrus, temporal lobe (superior, middle and inferior gyri), parietal lobe (inferior and superior portions), thalamus, caudate, putamen, occipital cortex and cerebellum.
The visual disturbance will move with the eyeball if it originates in the retina, but will remain fixed if it originates in the occipital cortex.[1]