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

Motor programme switching in the crayfish swimmeret system.

W J Heitler

    The Journal of Experimental Biology
    |January 1, 1985
    PubMed
    Summary

    Researchers identified two distinct motor programs (MP1 and MP2) in crayfish swimmeret systems. Perturbing a single neuron can switch between these programs, influencing neural networks.

    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

    Neuromechanical simulation of the locust jump.

    The Journal of experimental biology·2010
    Same author

    Practical tools for analysing rhythmic neural activity.

    Journal of neuroscience methods·2009
    Same author

    SpikeShaper: a simple tool for exploring Hodgkin-Huxley models.

    Neuroinformatics·2007
    Same author

    Glutamate is a transmitter that mediates inhibition at the rectifying electrical motor giant synapse in the crayfish.

    The Journal of comparative neurology·2001
    Same author

    Escape behaviour in the stomatopod crustacean Squilla mantis, and the evolution of the caridoid escape reaction.

    The Journal of experimental biology·1999
    Same author

    Crustacean studies and the early history of GABA.

    Trends in neurosciences·1999

    Area of Science:

    • Neuroscience
    • Animal Behavior
    • Motor Control

    Background:

    • Crayfish swimmeret systems exhibit rhythmic motor patterns crucial for locomotion.
    • Understanding neural control of rhythmic movements provides insights into motor programming.

    Purpose of the Study:

    • To investigate the neural mechanisms underlying different motor programs in the crayfish swimmeret system.
    • To identify key neurons that can switch between motor programs.
    • To characterize the synaptic inputs associated with each motor program.

    Main Methods:

    • Intracellular and extracellular recordings from crayfish abdominal ganglia.
    • Experimental manipulation of neuronal activity using current injection.
    • Analysis of motor program characteristics and intersegmental coordination.

    Main Results:

    • Two distinct motor programs (MP1 and MP2) were identified with different coordination patterns and activity amplitudes.
    • Specific interneurons, oscillating during MP1, cease activity during MP2.
    • Electrical stimulation of a small number of interneurons can induce a switch from MP1 to MP2.

    Conclusions:

    • A small population of interneurons plays a critical role in switching between motor programs.
    • Motor program switching can affect neural activity across multiple ganglia.
    • These identified neurons are potential targets for controlling motor behavior in crayfish.

    Related Experiment Videos