Recent advances in the technology of recording magnetic fields associated with electric current flow in biological tissues have provided a means of examining action currents that is more direct and possibly more accurate than conventional electrical recording. Magnetic recordings are relatively insensitive to muscle movement, and, because the recording probes are not directly connected to the t...

introduction: nucleus reticularis paragigantocellularis (pgi) is one of the major components of the rostral ventromedial medulla (rvm), which is involved in nociceptive processing and pain modulation. the aim of this study was to examine the effect of c fiber destruction on responsiveness of nucleus reticularis paragigantocellularis (pgi) to formalin, as a noxious stimulus, in normal and morphi...

The function of many sensors for measuring intracellular events is based on Förster resonance energy transfer (FRET). Here we demonstrate for the first time the use of multiple ratiometric FRET sensors in parallel through spatial and spectral resolution. We monitored three calcium-dependent signaling events by a cytosolic sensor for calcium/calmodulin-dependent protein kinase IIalpha, a membran...

introduction: in the present study the effect of nucleus basalis of meynert (nbm) destruction on the temporal characteristics of response integration evoked by multiple whisker stimulations in rat barrel cortex was studied. material and methods: wistar male rats weighing 250-350 g were used. the animals were randomly distributed into two groups: in the first group bilateral nbm lesions was indu...

We suggest a method for coding high-resolution computer-generated volume holograms. It involves splitting the computer-generated hologram into multiple holograms, their individual recording as volume holograms by use of the maximal resolution available from the spatial light modulator, and subsequent simultaneous reconstruction. We demonstrate the recording and the reconstruction of a computer-...

BACKGROUND Intracortical electrode arrays that can record extracellular action potentials from small, targeted groups of neurons are critical for basic neuroscience research and emerging clinical applications. In general, these electrode devices suffer from reliability and variability issues, which have led to comparative studies of existing and emerging electrode designs to optimize performanc...

We studied the involvement of the electrophysiological localization of the subthalamic nucleus (NST) using a multi-unit recording technique by means of semi-microelectrode in a set of thirty Parkinson's patients who benefited from a bilateral stimulation of the NST and who were operated on under local or general anesthesia. The multi-unit recording technique by means of semi-microelectrodes app...