No abstract available.
Occipital Lobe*

No abstract available.
Occipital Lobe*

No abstract available.
Epilepsy* ; Occipital Lobe* ; Rabeprazole*

A case of 'primative glioma' which involved left parietal and occipital lobes of a child is reported with detailed views on the clinical and pathologic findings.
Child ; Humans ; Occipital Lobe ; Rabeprazole

We used quantitative electroencephalography (EEG) spectral analysis to compare activity in the bilateral frontal, central, and occipital areas in nine patients with schizophrenia and ten healthy control subjects during standard nocturnal polysomnography. Patients with schizophrenia had longer sleep latency than controls. In N2 sleep, the patients had significantly lower 0.5–1 Hz power and higher theta power in the left frontal region, and higher beta power in the left occipital region than did control subjects. In N3 sleep, the patients with schizophrenia had significantly higher alpha power in the left occipital region than did controls. These findings show distinctive EEG sleep patterns in patients with schizophrenia, which may reflect brain dysfunction or medication effects.
Brain ; Electroencephalography* ; Humans ; Occipital Lobe ; Polysomnography ; Schizophrenia*

No abstract available.
Hemangioma, Cavernous* ; Occipital Lobe* ; Status Epilepticus*

BACKGROUND: The aim of the study was to examine the characteristics of alpha wave peak frequency, power, and coherence in patients with schizophrenia. METHODS: Thirty-one patients with schizophrenia and age- and sex-matched subjects with no psychopathology were enrolled. All study participants underwent quantitative electroencephalography (QEEG). Alpha-related values, including peak frequency, power, and coherence, were evaluated. RESULTS: Alpha peak frequency on the Oz area was slower in the schizophrenia group than that in the control group. However, no differences in absolute or relative power were observed between the two groups. Significant reductions in absolute and relative coherence were observed at the C3–C4 and T3–T4 nodes in the patients with schizophrenia. Relative coherence was reduced at the P3–P4 nodes. CONCLUSION: This study focused on alpha variables detected in QEEG as intrinsic values to distinguish schizophrenia from a healthy control. The results suggest decreased alpha peak frequency of the occipital lobe and decreased coherence between the two hemispheres in patients with schizophrenia. A further study could elucidate the causal relationship and biological meaning of the variations in alpha waves in patients with schizophrenia.
Electroencephalography* ; Humans ; Occipital Lobe ; Psychopathology ; Schizophrenia*

Epilepsy is a neurological disease with disordered brain network connectivity. It is important to analyze the brain network mechanism of epileptic seizure from the perspective of directed functional connectivity. In this paper, causal brain networks were constructed for different sub-bands of epileptic electroencephalogram (EEG) signals in interictal, preictal and ictal phases by directional transfer function method, and the information transmission pathway and dynamic change process of brain network under different conditions were analyzed. Finally, the dynamic changes of characteristic attributes of brain networks with different rhythms were analyzed. The results show that the topology of brain network changes from stochastic network to rule network during the three stage and the node connections of the whole brain network show a trend of gradual decline. The number of pathway connections between internal nodes of frontal, temporal and occipital regions increase. There are a lot of hub nodes with information outflow in the lesion region. The global efficiency in ictal stage of α, β and γ waves are significantly higher than in the interictal and the preictal stage. The clustering coefficients in preictal stage are higher than in the ictal stage and the clustering coefficients in ictal stage are higher than in the interictal stage. The clustering coefficients of frontal, temporal and parietal lobes are significantly increased. The results of this study indicate that the topological structure and characteristic properties of epileptic causal brain network can reflect the dynamic process of epileptic seizures. In the future, this study has important research value in the localization of epileptic focus and prediction of epileptic seizure.
Humans ; Epilepsy ; Brain ; Seizures ; Electroencephalography ; Occipital Lobe

The authors report 3 cases of intracranial cysticercosis simulating brain tumor. The 2 cases of them had parenchymatous huge cysts in the cerebral hemisphere and the other one had large cyst in the 4th ventricle. In one case of parenchymatous cysticercosis, angiographic finding was less significant though C-T scan revealed huge cystic shadow in the frontal lobe bilaterally and multiple small cystic shadow in occipital lobe and cerebellum. The 4th ventricular cysticercosis was well delineated with Conray ventriculography. All cases were proved as cerebral cysticercosis by operation and the patients were uneventful postoperatively.
Brain Neoplasms ; Cerebellum ; Cerebrum ; Cysticercosis* ; Frontal Lobe ; Humans ; Occipital Lobe

OBJECTIVE: The present study assessed the difference in the brain activity of professional gamers (excessive players, but not addicts) in response to playing a 3-dimensional online game with an improved interface. METHODS: Twenty-three StarCraft I pro gamers and 16 StarCraft II pro gamers were recruited at Chung Ang University Medical Center. Brain activity in response to StarCraft I or II cues was assessed with a 1.5 Tesla Espree MRI scanner. RESULTS: StarCraft I pro gamers showed significantly greater activity in 4 clusters in response to the video game cues compared to StarCraft II pro gamers: right superior frontal gyrus, right medial frontal gyrus, right occipital lobe, and left medial frontal gyrus. StarCraft II pro gamers showed significantly greater activity in 3 clusters in response to the video game cues compared to StarCraft I pro gamers: left middle frontal gyrus, left temporal fusiform gyrus and left cerebellum. DISCUSSION: This is the first study to show the difference in brain activity between gamers playing either a 2-dimensional or 3-dimensional online game. Current brain imaging studies may confirm the pro gamers' experience when playing StarCraft II, a 3-dimensional game with an improved interface, relative to playing StarCraft I.
Academic Medical Centers ; Brain ; Cues ; Neuroimaging ; Occipital Lobe ; Video Games