A system for decreasing asymmetry of brain activity, wherein said system comprises (a) a detection device, wherein the detection device comprises a set of channels, wherein the set of channels comprises (i) a first pair of corresponding lobe channels, wherein the first pair of corresponding lobe channels is comprised of a right first lobe channel and a left first lobe channel, and (ii) a second pair of corresponding lobe channels, wherein the second pair of corresponding lobe channels is comprised of a right second lobe channel and a left second lobe channel, wherein each channel comprises at least one sensor and is configured to measure electromagnetic energy in a region of a brain of a user and to generate a measurement of electromagnetic energy, wherein the channels are configured to measure said electromagnetic energy simultaneously and the first pair of corresponding lobe channels is configured to measure electromagnetic energy from a first lobe and the second pair of corresponding lobe channels is configured to measure electromagnetic energy from a second lobe, wherein the first lobe is not the same as the second lobe; (b) an asymmetry determination computer program product, wherein the asymmetry determination computer program product is capable of determining whether a threshold difference in energy exists between energies measured for any single frequency or for any one or more ranges of frequencies as measured between each channel of each pair of corresponding lobe channels; (c) a central processing unit, wherein the central processing unit is configured to receive said measurements of electromagnetic activity from the device and to execute the asymmetry determination computer program product; (d) an acoustic stimulus delivery device, wherein the acoustic stimulus delivery device is capable of delivering a variable sequence of acoustic stimuli; (e) an electric stimulus delivery device, wherein the electric stimulus delivery device is configured to deliver microvolt transcranial alternating current stimulation to a user's head; and (f) a first correlation algorithm, wherein the first correlation algorithm correlates each of a first plurality of frequencies from a set of brain wave frequencies with an acoustic stimulus; and (g) a second correlation algorithm, wherein for a second plurality of frequencies, periodically, the second correlation algorithm identifies an electric stimulus, wherein the second plurality of frequencies is a subset of the first plurality of frequencies. (a) a detection device, wherein the detection device comprises a set of channels, wherein the set of channels comprises (i) a first pair of corresponding lobe channels, wherein the first pair of corresponding lobe channels is comprised of a right first lobe channel and a left first lobe channel, and (ii) a second pair of corresponding lobe channels, wherein the second pair of corresponding lobe channels is comprised of a right second lobe channel and a left second lobe channel, wherein each channel comprises at least one sensor and is configured to measure electromagnetic energy in a region of a brain of a user and to generate a measurement of electromagnetic energy, wherein the channels are configured to measure said electromagnetic energy simultaneously and the first pair of corresponding lobe channels is configured to measure electromagnetic energy from a first lobe and the second pair of corresponding lobe channels is configured to measure electromagnetic energy from a second lobe, wherein the first lobe is not the same as the second lobe; (i) a first pair of corresponding lobe channels, wherein the first pair of corresponding lobe channels is comprised of a right first lobe channel and a left first lobe channel, and (ii) a second pair of corresponding lobe channels, wherein the second pair of corresponding lobe channels is comprised of a right second lobe channel and a left second lobe channel, (b) an asymmetry determination computer program product, wherein the asymmetry determination computer program product is capable of determining whether a threshold difference in energy exists between energies measured for any single frequency or for any one or more ranges of frequencies as measured between each channel of each pair of corresponding lobe channels; (c) a central processing unit, wherein the central processing unit is configured to receive said measurements of electromagnetic activity from the device and to execute the asymmetry determination computer program product; (d) an acoustic stimulus delivery device, wherein the acoustic stimulus delivery device is capable of delivering a variable sequence of acoustic stimuli; (e) an electric stimulus delivery device, wherein the electric stimulus delivery device is configured to deliver microvolt transcranial alternating current stimulation to a user's head; and (f) a first correlation algorithm, wherein the first correlation algorithm correlates each of a first plurality of frequencies from a set of brain wave frequencies with an acoustic stimulus; and (g) a second correlation algorithm, wherein for a second plurality of frequencies, periodically, the second correlation algorithm identifies an electric stimulus, wherein the second plurality of frequencies is a subset of the first plurality of frequencies.