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

Elasmobranch eye motor dynamics characterised using pseudorandom stimulus.

M G Paulin, J C Montgomery

    Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology
    |May 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    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

    Temperate marine protected area provides recruitment subsidies to local fisheries.

    Proceedings. Biological sciences·2017
    Same author

    Evidence for contact calls in fish: conspecific vocalisations and ambient soundscape influence group cohesion in a nocturnal species.

    Scientific reports·2016
    Same author

    Potential Competitive Dynamics of Acoustic Ecology.

    Advances in experimental medicine and biology·2015
    Same author

    Unilateral ablation of trunk superficial neuromasts increases directional instability during steady swimming in the yellowtail kingfish Seriola lalandi.

    Journal of fish biology·2014
    Same author

    The doctors in your child's life.

    Child study; a journal of parent education·2014
    Same author

    A novel hearing specialization in the New Zealand bigeye, Pempheris adspersa.

    Biology letters·2013
    Same journal

    Erratum: journal of comparative physiology a (1999) 184: 481-488.

    Journal of comparative physiology. A, Sensory, neural, and behavioral physiology·2014
    Same journal

    Online first publication.

    Journal of comparative physiology. A, Sensory, neural, and behavioral physiology·2014
    Same journal

    Adaptation in chemoreceptor cells. II. The effects of cross-adapting backgrounds depend on spectral tuning.

    Journal of comparative physiology. A, Sensory, neural, and behavioral physiology·2012
    Same journal

    Acetylcholine activates a chloride channel as well as glutamate and GABA.

    Journal of comparative physiology. A, Sensory, neural, and behavioral physiology·2011
    Same journal

    Pharmacological brain stimulation releases elaborate stridulatory behaviour in gomphocerine grasshoppers--conclusions for the organization of the central nervous control.

    Journal of comparative physiology. A, Sensory, neural, and behavioral physiology·2004
    Same journal

    Presynaptic effects of octopamine, serotonin, and cocktails of the two modulators on neuromuscular transmission in crustaceans.

    Journal of comparative physiology. A, Sensory, neural, and behavioral physiology·2004
    See all related articles

    This study characterizes elasmobranch eye motor plant dynamics using a linear first-order low-pass filter model. Findings reveal the vestibulo-ocular reflex requires phase compensation for effective control at lower frequencies.

    Area of Science:

    • Neuroscience
    • Comparative Physiology
    • Biophysics

    Background:

    • The vestibulo-ocular reflex (VOR) stabilizes gaze during head movements.
    • Understanding the dynamics of the VOR in non-mammalian vertebrates provides insights into fundamental neural control mechanisms.
    • Elasmobranchs possess a relatively simple yet effective VOR system.

    Purpose of the Study:

    • To characterize the dynamic properties of the elasmobranch eye motor plant.
    • To determine if a linear filter model can accurately describe eye movement responses.
    • To investigate the role of canal signal integration in VOR control.

    Main Methods:

    • Electrical stimulation of the abducens nerve in an elasmobranch preparation (Cephaloscyllium isabella).
    • Recording ipsilateral eye movements using a position-sensitive photodiode.

    Related Experiment Videos

  • Cross-correlation analysis of eye position data with stimulus patterns.
  • Fitting exponential decay curves to cross-correlograms to estimate filter time constants.
  • Frequency domain analysis using Digital Fourier Transform and Bode plots.

    • Main Results:

    • Elasmobranch eye motor plant dynamics are accurately modeled by a linear first-order low-pass filter with a corner frequency of 0.73 ± 0.10 Hz.
    • A non-minimum phase lag of 90 degrees at approximately 4 Hz indicates a time delay of 50-60 ms.
    • Canal signal integration is not essential for compensatory eye movements above the characteristic frequency.

    Conclusions:

    • The elasmobranch eye motor plant exhibits low-pass filter characteristics.
    • Effective VOR control, particularly at lower frequencies, necessitates substantial phase compensation or prediction.
    • These findings contribute to understanding the neural control of eye movements in vertebrates.