Systems and methods for assessing and improving sustained attention
The present invention relates to a system and method for assessing and training the quality of attentional awareness and control of an individual. The individual's attention is monitored using a neurophysiological system such as EEG while using a computer system and display that provides signals that allow the correlation of behavioral measures of attention with neurophysiological measures. The combination of those signals is a novel, accurate and reliable system for assessing any individual's true attention capabilities.
1. In a computerized attention testing system having an EEG sensor and an output device, a method for measuring attention capability comprising:
providing a first auditory stimulus using an output device to be attended by a user during a time period, the first auditory stimulus pulsating at a first frequency;
providing a second auditory stimulus using the output device to be ignored by the user during the time period, the second auditory stimulus pulsating at a second frequency;
measuring an infra-slow fluctuation of SSAEP (Steady State Auditory Evoked Potentials) of the user substantially during the time period using a neural scanner; and
computing a measure of attention capability of the user by using the infra-slow fluctuation SSAEP of the user.
2. The method of claim 1 wherein the first auditory stimulus includes a first plurality of audible sounds, and wherein the second auditory stimulus includes a second plurality of audible sounds.
3. The method of claim 1 further comprising:
providing at least one audible target to the user;
measuring at least one fluctuation of reaction time of the user to the at least one target substantially over the time period; and
correlating the measured at least one fluctuation of reaction time with the measured SSAEP of the user during the computing of the measure of attention capability of the user.
4. The method of claim 1 wherein the time period is a sustained time period.
5. The method of claim 4 wherein the sustained time period is substantially over ten seconds.
6. The method of claim 1 wherein the SSAEP is measured using an EEG sensor.
7. The method of claim 1 wherein the first frequency is substantially between 3 Hz and 60 kHz.
8. The method of claim 7 wherein the first frequency is substantially between 10 Hz and 20 kHz.
9. The method of claim 1 wherein the second frequency is substantially between 3 Hz and 60 kHz.
10. The method of claim 9 wherein the second frequency is substantially between 10 Hz and 20 kHz.
11. The method of claim 1 wherein a presentation rate of the target is randomized with respect to time.
12. The method of claim 3 further comprising providing at least one audible distractor to be ignored by the user.