Stereoelectroencephalography (SEEG) is an invasive surgical procedure used to identify epileptogenic zones. The combination of both subdural grids and depth electrodes (DEs) is currently used for invasive intracranial monitoring in many epilepsy centers. To perform DE implantation, some centers use frame-based stereotactic techniques and others use stereotactic robotic techniques. However, not ...

Neurophysiologists want to place the tip of an electrode in a specific area of the brain. The coordinates of this area can be obtained from standard stereotaxic atlases. However, individual brains may not align with the atlas exactly. Additionally, for chronic recordings, electrodes are placed through a chamber attached to the animal's skull. Thus, the user wants to know where the area of inter...

Latent herpes simplex virus (HSV) has been demonstrated in the trigeminal ganglia of experimentally infected rabbits between episodes of spontaneous ocular recurrence. In three experiments reported here, the normal pattern of recurrence was modified by manipulation of the trigeminal nerve and ganglion. Temporary retrobulbar disruption of trigeminal nerve function in chronically infected animals...

When Horsley and Clarke8 introduced their stereotaxic manipulator in 1908, all subcortical areas in the brains of laboratory animals theoretically became accessible for study. As a consequence, many valuable data have been obtained from stimulation and ablation studies. The potential of the technique for ablation study has been limited for want of a necrotizing agent that would gradually destro...

Stereotaxic surgery guided with CT has long been a valuable tool in neurosurgical practice and has a high degree of accuracy with a low morbidity rate [1]. MR imaging, with its inherently greater soft-tissue contrast resolution and its ability to obtain images directly in any desired plane, is increasingly useful in studying the brain. This latter characteristic is also useful for simulating th...