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

Dynamics of cockroach ocellar neurons.

M Mizunami, H Tateda, K Naka

    The Journal of General Physiology
    |August 1, 1986
    PubMed
    Summary

    Cockroach ocellus neurons show linear responses to light stimuli, with sensitivity following Weber-Fechner laws. Their visual processing dynamics remain constant across illuminances, unlike other visual systems.

    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

    TNF-α/TNFR1 signaling promotes gastric tumorigenesis through induction of Noxo1 and Gna14 in tumor cells.

    Oncogene·2013
    Same author

    Preventive behaviors against HIV transmission adopted by Japanese commercial sex workers (CSWs).

    Environmental health and preventive medicine·2011
    Same author

    Erratum.

    Environmental health and preventive medicine·2011
    Same author

    Social and behavioral factors associated with condom use among female commercial sex workers (CSWs) in tarlac, the Philippines.

    Environmental health and preventive medicine·2011
    Same author

    Effects of delayed (24 h postintervention) beta-irradiation therapy after coronary angioplasty and stenting in de novo native coronary artery lesions; Results of a randomized clinical and intravascular ultrasound study.

    Cardiovascular radiation medicine·2004
    Same author

    Preparation of a purified fibrinogen calibration material for Clauss method and turbidimetric immunoassay possessing biological activity and antigenicity.

    Clinical and laboratory haematology·2003

    Area of Science:

    • Neuroscience
    • Insect Vision
    • Sensory Physiology

    Background:

    • The ocellus, a simple eye in insects, plays a role in light detection.
    • Understanding neuronal responses in the ocellus is crucial for insect visual processing research.

    Purpose of the Study:

    • To investigate the incremental responses and dynamics of second-order neurons in the cockroach ocellus.
    • To characterize the linearity and sensitivity of these neurons under varying light conditions.

    Main Methods:

    • Used white-noise-modulated light stimuli with controlled mean illuminances.
    • Employed cross-correlation techniques to analyze neuronal responses and derive kernels.
    • Measured incremental sensitivity and response dynamics of second-order neurons.

    Main Results:

    • Neuronal sensitivity precisely followed the Weber-Fechner function.
    • Responses to white-noise stimuli were linear.
    • Neuronal dynamics were invariant across a 4-log-unit range of mean illuminances.
    • Observed amplitude compression as the primary nonlinearity.

    Conclusions:

    • Signal processing in the cockroach ocellus is simple and distinct from other visual systems.
    • Unlike vertebrate retinas and compound eyes, ocellar system dynamics are illuminance-independent.

    Related Experiment Videos