Which afferents induce and transmit dorsal root reflex in rats?

Tzer Bin Lin, Tsu Ching Fu

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


The dorsal root reflex (DRR) in single fibers, recorded in the severed L5 dorsal root central stump, initiated spontaneously or by electric stimulation (St) of sciatic nerve, was studied in anesthetized rats. The excitation of group II afferents were the major inputs to induce DRRs which were transmitted mainly in fibers with conduction velocity below 20 m/s, and its central delay was 3-5 ms. The firing frequency of both spontaneous and evoked DRRs were increased two to four times after spinalization (T13). These results suggested that the DRR may play an important role in the modulation of sensory afferent inputs regulated by supraspinal structures.

Original languageEnglish
Pages (from-to)75-78
Number of pages4
JournalNeuroscience Letters
Issue number2-3
Publication statusPublished - May 15 1998
Externally publishedYes


  • Dorsal root reflex
  • Nerve conduction velocity
  • Rats
  • Single unit recording
  • Spinalization

ASJC Scopus subject areas

  • General Neuroscience


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