Patents by Inventor Sandra P. Marshall

Sandra P. Marshall 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).

  • Methods for monitoring affective brain function
    Patent number: 6572562
    Abstract: An evaluation of affective brain function and, more particularly, to the monitoring of such function as an indication of the reception of visual stimulus. Such evaluation primarily involves analyzing dilation responses as a measure of whether the visual stimulus evokes a positive or negative affective response.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: June 3, 2003
    Assignee: Eyetracking, Inc.
    Inventor: Sandra P. Marshall
  • METHODS FOR MONITORING AFFECTIVE BRAIN FUNCTION
    Publication number: 20030078513
    Abstract: The present invention relates to the evaluation of affective brain function and, more particularly, to the monitoring of such function as an indication of the reception of visual stimulus. Such evaluation primarily involves analyzing dilation responses as a measure of whether the visual stimulus evokes a positive or negative affective response.
    Type: Application
    Filed: March 6, 2001
    Publication date: April 24, 2003
    Inventor: Sandra P. Marshall
  • Method and apparatus for eye tracking and monitoring pupil dilation to evaluate cognitive activity
    Patent number: 6090051
    Abstract: Method and apparatus for correlating pupillary response to the cognitive activity of a subject undergoing an evaluation of cognitive activity during a task which involves monitoring and recording the point of gaze and pupillary response of the subject to the task, subjecting the recorded pupillary response to wavelet analysis in order to identify any dilation reflex of the subject's pupil during the task, and assigning a pupillary response value to the result of the wavelet analysis.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: July 18, 2000
    Inventor: Sandra P. Marshall