PlumX Metrics
Embed PlumX Metrics

Differential synaptic input of filiform hair sensory neurones on to giant interneurones in the first-instar cockroach

Journal of Insect Physiology, ISSN: 0022-1910, Vol: 32, Issue: 7, Page: 591-595
1986
  • 14
    Citations
  • 0
    Usage
  • 3
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    14
    • Citation Indexes
      14
  • Captures
    3

Article Description

Simultaneous intracellular recordings were made from filiform hair sensory neurones (FHSNs) and giant interneurones, and from pairs of giant interneurones in the terminal ganglion of the first-instar cockroach. Three out of the four filiform hairs on the cerci were immobilized. The remaining mobile hair was free to oscillate in the saline solution bathing the preparation. Hair movements produced regular bursts of action potentials in the FHSN axon. These spikes elicited excitatory postsynaptic potentials (epsps) in some of the giant interneurones. Simultaneous impalements of giant interneurones 2 and 3 were made with different mobile filiform hairs, in order to qualitatively compare the strengths of their excitatory synaptic inputs. Giant interneurone 3 receives strong excitatory input from the lateral FHSNs on both sides of the ganglion and some input from the medial FHSN contralateral to the giant interneurone 3 cell body. Giant interneurone 2 receives strong excitatory input from both medial FHSNs and little discernible input from the lateral axons. These findings are consistent with estimates of the numbers of FHSN axon, giant interneurone synapses obtained from ultrastructural studies.

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know