Patents by Inventor Margaret S. Livingstone

Margaret S. Livingstone has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for determining magnocellular pathway defect and dyslexia
    Patent number: 5474081
    Abstract: A method and apparatus determine defective magnocellular pathway in the visual system of a subject. Such determination of defective magnocellular pathway in turn is deterministic of dyslexia. The invention method and apparatus presents to a subject eye a series of patterns spatially varying in light intensity, such as a checkerboard pattern. Each pattern provides a certain respective degree of contrast between areas of varying light intensity. In displaying each checkerboard pattern, it is alternated with display of its contrast reverse pattern at a frequency between about 0.5 Hz and about 15 Hz. The temporal frequency from one checkerboard pattern to the next checkerboard pattern in the displayed series of patterns is in the range of about 30 patterns per minute to hundreds of patterns per minute. Response of the eye, such as the visually evoked potential, to each pattern is measured as the pattern is being displayed.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: December 12, 1995
    Assignee: President and Fellows of Harvard College
    Inventors: Margaret S. Livingstone, Albert M. Galaburda