Synchronized audiovisual neurostimulation devices, systems and methods

A method for delivering neurostimulation therapy, comprising:

• providing a headset, and a visor, wherein said headset and visor can be a singular unit;
• and
• optionally a helmet to a user;
• delivering a Brainwave Entrainment (BWE) session by generating audio signals including binaural beats and isochronic tones in a frequency range from 18 to 0.5 Hz through said headset and activating visual signals via light-emitting diodes emitting light at 470 nanometers and flickering at frequencies between 18 and 0.5 Hz through said visor;
• delivering a Transcranial Photobiomodulation (tPBM) session by transmitting light at 660 nm and 850 nm wavelengths through the helmet with a total irradiance of 1000 mW/cm2 per minute;
• and
• synchronizing said delivery of said BWE session and said tPBM session to alter brainwave activity in one or more users.

A circuit for detecting audio frequencies and activating light channels, comprising:

• a plurality of frequency detectors, each configured to detect a distinct near-ultrasonic frequency within a range of 18,000 to 20,000 Hz;
• a Bluetooth module configured to receive an audio signal;
• a preamplifier coupled to the Bluetooth module for signal conditioning;
• and
• a plurality of light activation channels, each triggered by an output of a corresponding frequency detector.

A neurostimulation system, comprising:

• a headset configured to deliver audio signals including binaural beats and isochronic tones in a frequency range from 18 to 0.5 Hz;
• a visor configured to deliver visual signals via light-emitting diodes emitting light at 470 nanometers and flickering at frequencies between 18 and 0.5 Hz wherein said headset and visor can be a singular unit;
• and optionally a helmet, wherein at least said system includes said headset and said visor configured to deliver transcranial photobiomodulation, with said headset, visor and optional helmet comprising:
• a plurality of light-emitting diode arrays arranged along an inner surface for homogeneous light distribution, the arrays configured to emit light at 660 nm and 850 nm wavelengths to deliver a total irradiance of 1000 mW/cm2 per minute;
• and a controller operatively connected to said headset, visor, and optional helmet, said controller configured to synchronize and control delivery of audio signals, visual signals, and photobiomodulation that alters brainwave activity in a user.