Behavioral, electrophysiological, and histopathological consequences of mild fluid-percussion injury in the rat

Matthew J. Sanders, W. Dalton Dietrich, Edward J. Green

Research output: Contribution to journalArticle

25 Scopus citations


Metabolic dysfunction in the relay nuclei of the rat vibrissa circuit follows traumatic brain injury (TBI). This study examined the effects of mild (1.4-1.5 atm) parasagittal fluid-percussion injury on the electrophysiology of this circuit. TBI caused significant reductions in slope and increases in latency of vibrissa-evoked field potentials 3 days after injury. Assessment of open-field swimming revealed an increase in thigmotaxis 2 days after injury. TBI caused mild selective cortical damage and limited axonal swelling at the injury site. Thus mild injury disrupts somatosensory electrophysiology and exploratory behavior.

Original languageEnglish (US)
Pages (from-to)141-144
Number of pages4
JournalBrain Research
Issue number1
StatePublished - Jun 15 2001



  • Barrel field
  • Brain injury
  • Electrophysiology
  • Parasagittal fluid percussion
  • Somatosensory cortex
  • Water maze

ASJC Scopus subject areas

  • Neuroscience(all)

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