Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Feature extraction by burst-like spike patterns in multiple sensory maps

W Metzner1, C Koch, R Wessel

  • 1Department of Biology, University of California at Riverside, Riverside, California 92521-0427, USA.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|April 18, 1998
PubMed
Summary

Higher-order neurons in electric fish encode stimulus features using spike bursts, with I-type pyramidal cells in the centromedial map showing superior pattern recognition for electric field amplitude modulations.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Iatrogenic adrenal insufficiency as a side-effect of combined treatment of itraconazole and budesonide.

The European respiratory journal·2002
Same author

Itraconazole treatment of allergic bronchopulmonary aspergillosis in patients with cystic fibrosis.

Allergy·2002
Same author

Microbial load of drinking water reservoir tributaries during extreme rainfall and runoff.

Applied and environmental microbiology·2002
Same author

Sulphation of the salivary mucin MG1 (MUC-5B) is not correlated to the degree of its sialylation and is unaffected by cystic fibrosis.

Pflugers Archiv : European journal of physiology·2002
Same author

Altered sialyl- and fucosyl-linkage on mucins in cystic fibrosis patients promotes formation of the sialyl-Lewis X determinant on salivary MUC-5B and MUC-7.

Pflugers Archiv : European journal of physiology·2002
Same author

Soil surface structure effect on isoproturon and diflufenican loss in runoff.

Journal of environmental quality·2002

Area of Science:

  • Neuroscience
  • Sensory Systems Biology
  • Computational Neuroscience

Background:

  • Higher-order neurons extract behaviorally relevant stimulus features from sensory input.
  • Previous research quantified information in sensory neuron spike trains using stimulus estimation methods.
  • The electrosensory system in weakly electric fish serves as a model for studying information transfer across sensory maps.

Purpose of the Study:

  • To investigate how electric field amplitude modulations are temporally encoded and processed by subsequent neurons.
  • To understand information transfer from sensory neurons to higher-order neurons across multiple sensory maps.
  • To compare the processing capabilities of different cell types within the electrosensory lateral line lobe (ELL).

Main Methods:

Related Experiment Videos

  • Recorded responses of P-type afferents and E- and I-type pyramidal cells in the ELL to electric field distortions.
  • Utilized linear and second-order nonlinear stimulus estimation methods.
  • Applied two pattern classifiers to discriminate stimulus waveforms preceding cell spikes.

    • Main Results:

    • Pyramidal cells, unlike P-receptor afferents, did not reliably encode time-varying information via linear filtering and rectification.
    • Pyramidal cells reliably encoded stimulus upstrokes and downstrokes using short spike bursts.
    • I-type pyramidal cells in the centromedial ELL map demonstrated superior pattern recognition compared to lateral map cells and E-type cells.

    Conclusions:

    • Pyramidal cells encode amplitude modulations through temporal patterns (spike bursts) rather than solely through firing rate changes.
    • Specific neuronal populations (I-type cells in the centromedial map) exhibit enhanced pattern recognition abilities within the electrosensory pathway.
    • The study elucidates mechanisms of sensory information processing and feature extraction in the electrosensory system.