METHOD OF ANALYZING CEREBRAL ELECTRICAL ACTIVITY

• US 3,841,309 A
• Filed: 02/28/1973
• Issued: 10/15/1974
• Est. Priority Date: 12/21/1970
• Status: Expired due to Term

• Current Assignee: Andrew Salter, Robert Fried
• Original Assignee: Andrew Salter, Robert Fried
• Inventors: Salter, Andrew, Fried, Robert
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US05/336,539
• Time in Patent Office: 594 Days
• Field of Search: 128/2.5P,2.5R,2.5T,2.6A,2.6R,2.1A,2.1B,2.1M,2.1R,2.6B,2.6F
• US Class Current: 600/544
• CPC Class Codes: A61B 5/369 Electroencephalography [EEG] devices for psychotechnics A61B5/16

Abstract

This application discloses a method of analyzing bioelectric outputs of living things by sensing, amplifying and comparing such outputs with selected predetermined values and providing indications of each occurrence of the departure of a discrete value of such outputs from such predetermined values.

Claims

1. The method of analyzing cerebral electrical activity comprising the steps of:

sensing the cerebral electrical outputs from selected locations on the head of a living subject;

comparing such outputs with more than one adjustable predetermined value;

producing signals representing each time any one of said outputs has a value which exceeds any one or more of said adjustable predetermined values; and

determining the number of the signals so produced at each of said adjustable predetermined values.

2. The method of claim 1 wherein said last-mentioned step comprises the step of providing a visual indication of said signals.

3. The method of claim 1 wherein said last-mentioned step comprises the step of recording said signals.

4. The method of claim 1 wherein said last-mentioned step comprises the step of counting the number or said signals occurring in discrete time intervals.

5. The method of claim 1 including the step of comparing said signals with statistically valid groups of similar signals in a memory data storage means to ascertain the degree of correspondence of said signals with any one or more of said groups of signals in the data storage means.

6. The method of claim 5 wherein said step of comparing said signals with said groups of signals in the data storage means includes the step of transmitting said signals to a remote location for such comparison.

7. The method of claim 6 including the step of transmitting to the point of origin information derived from the step of comparing the signals with the signals in the data storage means.

8. The method of claim 1 wherein the signals derived are those representing each time a discrete one of said outputs is at least equal to said predetermined value.

9. The method of claim 8 wherein said last-mentioned step comprises the step of providing a visual indication of said signals.

10. The method of claim 9 wherein said last-mentioned step comprises the step of recording said signals.

11. The method of claim 8 wherein said last-mentioned step comprises the step of counting the number of said signals occurring in discrete time intervals.

12. The method of claim 8 including the step of comparing said signals with statistically valid groups of similar signals in a data storage means to ascertain the degree of correspondence of said signals with any one or more of said groups of signals in the data storage means.

13. The method of claim 12 wherein said step of comparing said signals with said groups of signals in the data storage means including the step of transmitting said signals to a remote location.

14. The method of claim 13 including the step of transmitting to the point of origin information derived from the step of comparing the signalS with the signals in the data storage means.