PMID- 2082644 OWN - NLM STAT- MEDLINE DCOM- 19910507 LR - 20070906 IS - 0001-7604 (Print) IS - 0001-7604 (Linking) VI - 32 IP - 4 DP - 1990 Dec TI - An easy method to record slow potential shifts (SPS) in rabbits using the "oddball" paradigm. PG - 257-63 AB - Rabbits with chronically implanted Ag-AgCl electrodes over somatosensory and visual cortex were trained to a modified 'oddball' paradigm with visual stimulation. Event related potentials (ERP) and slow potential shifts (SPS) were recorded. By means of a computer controlled stimulator 'frequent' and 'rare' LED flashes were administered to the eyes of the rabbit. If 'rare' stimuli were reinforced by a weak electrical footshock, negative SPS rose steeper and reached significantly higher amplitudes than in 'frequent' conditions without reinforcement. Different kinds of the follow-up of 'frequent' and 'rare' series were tested. Best effects were obtained, if a session was divided into 3 blocks (3 srs. 'frequent'--5 srs. 'rare' reinforced--2 srs. 'frequent' and probability of 'rare' flashes was 20%. Our present data formed a basis for investigations on the neuronal and glial sources of SPS in rabbits. FAU - Richter, F AU - Richter F AD - Institute of Physiology, Friedrich Schiller University, Jena, G.D.R. FAU - Haschke, W AU - Haschke W FAU - Schmidt, D AU - Schmidt D FAU - Leichsenring, A AU - Leichsenring A LA - eng PT - Journal Article PL - Czech Republic TA - Act Nerv Super (Praha) JT - Activitas nervosa superior JID - 0400662 SB - IM MH - Animals MH - Electric Stimulation MH - Electrodes, Implanted MH - Electroencephalography MH - Evoked Potentials/*physiology MH - Evoked Potentials, Visual/physiology MH - Male MH - Photic Stimulation MH - Rabbits MH - Somatosensory Cortex/physiology MH - Visual Cortex/physiology EDAT- 1990/12/01 00:00 MHDA- 1990/12/01 00:01 CRDT- 1990/12/01 00:00 PHST- 1990/12/01 00:00 [pubmed] PHST- 1990/12/01 00:01 [medline] PHST- 1990/12/01 00:00 [entrez] PST - ppublish SO - Act Nerv Super (Praha). 1990 Dec;32(4):257-63.