Apparatus for and method of providing brainwave biofeedback

• US 5,740,812 A
• Filed: 01/25/1996
• Issued: 04/21/1998
• Est. Priority Date: 01/25/1996
• Status: Expired due to Fees

• Current Assignee: Neurotek LLC
• Original Assignee: Mindwaves Limited
• Inventors: Cowan, Jonathan D.
• Primary Examiner(s): Bahr, Jennifer
• Assistant Examiner(s): CARTER, RYAN CHRISTOPHER
• Application Number:
  US08/590,405
• Time in Patent Office: 817 Days
• Field of Search: 128/630, 128/639-641, 128/643-644, 128/696, 128/710, 128/731-732, 128/905, 600/26-27, 607/139
• US Class Current: 600/545
• CPC Class Codes: A61B 5/375 using biofeedback
• CPC Class Codes: A61B 5/38 Acoustic or auditory stimuli

Abstract

The present invention relates to an apparatus for and a method of providing brainwave biofeedback to a user while the user is simultaneously doing other tasks, for example, while the user is responding to a computer learning lab, working with another computer program, or playing a game. For example, a user could wear a headphone sensor unit, a virtual reality headset sensor unit, or a similar enclosure incorporating sensors made of comfortable compound sponges soaked in an electrolyte solution. The unit can detect brainwave signals which are then processed and interfaced with a computer. Audio and/or video feedback is provided to the user which indicates the user'"'"'s focus or alertness. While the sensor unit could have therapeutic uses, the current embodiments relate to educational and recreational uses and for uses related to increasing personal performance.

Claims

1. A brainwave biofeedback apparatus to be worn by a user on the user'"'"'s head, the apparatus comprising a scalp portion passing over a scalp of the user'"'"'s head, said apparatus further comprising at least one scalp sensor unit, said at least one scalp sensor unit being detachably receivable by said scalp portion, said at least one scalp sensor unit having a scalp electrode cup and a compound sponge assembly, said scalp electrode cup including a scalp electrode having a scalp electrode lead extending therefrom, said compound sponge assembly including an absorbent sponge portion and a scalp contact and cleaning portion, said scalp contact and cleaning portion to engage said user'"'"'s hair, said absorbent sponge portion being partway received by said scalp electrode cup, said scalp contact and cleaning portion being a layer external to said absorbent sponge portion and attached thereto.

2. The apparatus of claim 1, further comprising at least one earpiece, said at least one earpiece having an ear pad, said ear pad having a sensor receiving receptacle therein, said sensor receiving receptacle having an ear lobe sensor unit detachably received therein, said ear lobe sensor unit having a lobe electrode cup and a lobe sponge, said lobe electrode cup including a lobe electrode having a lobe electrode lead extending therefrom, said lobe sponge including an ear lobe engaging portion, said lobe sponge being partway received by said lobe electrode cup.

3. The apparatus of claim 2, where, when the user is wearing said apparatus, said ear lobe engaging portion of said lobe sponge and the user'"'"'s respective ear lobe are in a flush relation.

4. The apparatus of claim 2, where said lobe sponge has a trapezoidal shaped cross-section, said ear lobe engaging portion including an upper portion to engage the user'"'"'s ear lobe cartilage and a lower larger portion to engage the user'"'"'s ear lobe fleshy portion.

5. The apparatus of claim 2, where said lobe electrode cup has a cup bottom, said cup bottom being in a first plane, said ear lobe engaging portion being in a second plane, said first and said second plane intersecting at a preselected angle.

6. The apparatus of claim 5, where said preselected angle is approximately fifteen degrees.

7. The apparatus of claim 1, where said scalp portion includes a headband, said headband having at least one extender connected thereto, said at least one extender detachably receiving said at least one scalp sensor unit.

8. The apparatus of claim 1, where said absorbent sponge portion comprises a dense sponge material.

9. The apparatus of claim 1 where said scalp contact and cleaning portion comprises a woven fiber material.

10. The apparatus of claim 2, further comprising an input/output interface unit, said lobe and said scalp electrode leads being received by said input/output interface unit.

11. The apparatus of claim 2, further comprising a signal processing unit, said signal processing unit receiving an electronic signal from each of said lobe and scalp electrode leads, said signal processing unit evaluating said electronic signals to determine a value representing an indication of alertness or relaxation.

12. The apparatus of claim 11, where said value is provided to a computer which processes said value and displays on a computer monitor an indication of alertness to the user.

13. The apparatus of claim 12, where said indication of alertness is a gauge which is more full with increased alertness.

14. The apparatus of claim 12, where said indication of alertness is a display which is more in focus with increased alertness.

15. The apparatus of claim 11, said at least one earpiece further comprising an earphone providing an audio signal to said user, where said value is provided to a computer which processes said value and alters said audio signal in response to said value to provide an indication of alertness to said user.

16. The apparatus of claim 15, where said indication of alertness is a volume change in said audio signal.

17. The apparatus of claim 16, where said indication of alertness is a clarity change in said audio signal.

18. The apparatus of claim 11, where said at least one scalp sensor unit comprises a first and a second scalp sensor unit, said scalp sensor units being detachably received by said scalp portion at preselected locations.

19. A brainwave biofeedback apparatus to be worn by a user on the user'"'"'s head, the apparatus comprising a scalp portion passing over a scalp of the user'"'"'s head, said apparatus further comprising at least one scalp sensor unit, said at least one scalp sensor unit being receivable by said scalp portion, said at least one scalp sensor unit having a scalp electrode cup and a compound sponge assembly, said scalp electrode cup including a scalp electrode having a scalp electrode lead extending therefrom, said compound sponge assembly including an absorbent sponge portion and a scalp contact and cleaning portion, said absorbent sponge portion being partway received by said scalp electrode cup, said scalp contact and cleaning portion being a layer external to said absorbent sponge portion and attached thereto.

20. The apparatus of claim 19, where said absorbent sponge portion comprises a dense sponge material and said scalp contact and cleaning portion comprises a woven fiber material.