Epileptiform burst responses in ventral vs dorsal hippocampal slices

Brain Res. 1985 Dec 30;361(1-2):389-91. doi: 10.1016/0006-8993(85)91309-5.


Field potentials from area CA1 evoked by stimulation of the Schaffer collaterals were compared in dorsal and ventral hippocampal slices of rat brain. Responses were categorized into 5 response types on the basis of their morphology, ranging from simple (single spike component) to complex (multiple spike components). A higher percentage of ventral slices, compared to dorsal slices, responded with a complex morphology under normal and increased K+ concentrations. Thus, there was a significantly greater tendency for cells within the ventral hippocampus to generate burst responses.

MeSH terms

  • Animals
  • Electric Stimulation
  • Epilepsy / physiopathology*
  • Evoked Potentials
  • Hippocampus / drug effects
  • Hippocampus / physiopathology*
  • In Vitro Techniques
  • Male
  • Organ Specificity
  • Potassium / pharmacology
  • Rats


  • Potassium