Method to improve concentration and/or memory in a subject in need thereof

1. A method to improve at least one of concentration, memory, cognitive performance, and stress-relief in a subject by audio-visual entrainment, the method comprising:

a) selecting a subject in need of improvement in the at least one of concentration, memory, cognitive performance, and stress-relief;

b) administering artificially synchronized flashes of light and pulsed tones to the subject, wherein the artificially synchronized flashes of light are in the frequency range of 4-12 Hz and wherein the artificially synchronized pulsed tones are in the frequency range of 4-12 Hz, and

c) measuring of the at least one of concentration, memory, cognitive performance, and stress-relief in the subject,

wherein the measurement of the at least one of concentration, memory, cognitive performance, and stress-relief in the subject is improved,

wherein the flashes of light have a wavelength in the range of 400 to 720 nm and a brightness in the range of greater than 0 to less than or equal to 16 Lx, and

wherein the flashes of light include a wave form with a varying frequency.

2. The method of claim 1 , wherein the varying frequency includes at least one of an ascending frequency and a descending frequency.

3. The method of claim 1 , wherein the flashes of light and pulsed tones are administered in-phase, out-phase, or a combination thereof,

wherein in-phase administration of the flashes of light and pulsed tones comprises administration of flashes of light and pulsed tones on a left channel and a right channel at the same time, or

wherein the out-phase administration of the flashes of light and pulsed tones comprises administration of flashes of light and pulsed tones on a left channel and a right channel at different times.

4. The method of claim 1 , wherein administering the artificially synchronized flashes of light and pulsed tones occurs for a period of 15 to 60 minutes.

5. The method of claim 1 , wherein administering the artificially synchronized flashes of light and pulsed tones for a period of 15 to 30 minutes.

6. The method of claim 1 , wherein administering the artificially synchronized flashes of light and pulsed tones occurs daily for three or more days.

7. The method of claim 1 , wherein the subject has been diagnosed with ADHD.

8. The method of claim 1 , wherein the subject has been diagnosed with developmental impairment of executive function.

9. The method of claim 1 , wherein the subject is suffering from age-related memory loss.

10. The method of claim 1 , wherein the subject is at risk for age-related memory loss.

11. The method of claim 1 , further comprising:

administering sounds of nature.

12. The method of claim 11 , wherein the sounds of nature include at least one of river gurgling, birds chirping, rain drops, and ocean waves.

13. The method of claim 1 further comprising:

establishing a baseline score for the at least one of concentration, memory, cognitive performance, and stress-relief for the subject prior to administering the artificially synchronized flashes of light and pulsed tones; and

measuring an improved score for the at least one of concentration, memory, cognitive performance, and stress-relief for the subject after administering the artificially synchronized flashes of light and pulsed tones.

14. The method of claim 1 wherein stress-relief includes at least one of increasing relaxation, decreasing anxiety, and increasing restorative sleep.

15. A computer implemented method to improve at least one of concentration, memory, cognitive performance, and stress-relief in a subject by audio-visual entrainment, comprising:

on a computing device having one or more processors and a memory storing one or more programs for execution by the one or more processors, the one or more programs including instructions for:

administering synchronized flashes of light and pulsed tones to a subject in need of improvement in the at least one of concentration, memory, cognitive performance, and stress-relief, wherein the synchronized flashes of light are in the frequency range of 4-12 Hz and wherein the synchronized pulsed tones are in the frequency range of 4-12 Hz, and

measuring of the at least one of concentration, memory, cognitive performance, and stress-relief in the subject,

wherein the measurement of the at least one of concentration, memory, cognitive performance, and stress-relief in the subject is improved, and

wherein the flashes of light include a wave form with a varying frequency.

16. A computer system to improve at least one of concentration, memory, cognitive performance, and stress-relief in a subject by audio-visual entrainment, comprising:

one or more processors; and

memory configured to store:

one or more programs configured to be executed by the one or more processors, the one or more programs comprising instructions for:

administering synchronized flashes of light and pulsed tones to a subject in need of improvement in the at least one of concentration, memory, cognitive performance, and stress-relief, wherein the synchronized flashes of light are in the frequency range of 4-12 Hz and wherein the synchronized pulsed tones are in the frequency range of 4-12 Hz, and

measuring of the at least one of concentration, memory, cognitive performance, and stress-relief in the subject,

wherein the measurement of the at least one of concentration, memory, cognitive performance, and stress-relief in the subject is improved, and

wherein the flashes of light include a wave form with a varying frequency.

17. A non-transitory computer-readable storage medium storing one or more programs configured to be executed by one or more processing units at a computer comprising instructions for:

administering synchronized flashes of light and pulsed tones to a subject in need of improvement in at least one of concentration, memory, cognitive performance, and stress-relief, wherein the synchronized flashes of light are in the frequency range of 4-12 Hz and wherein the synchronized pulsed tones are in the frequency range of 4-12 Hz, and

measuring of the at least one of concentration, memory, cognitive performance, and stress-relief in the subject,

wherein the measurement of the at least one of concentration, memory, cognitive performance, and stress-relief in the subject is improved, and

wherein the flashes of light include a wave form with a varying frequency.