The reports are merely a snapshot of the beginning and another at the end of a session, and do not reflect all of the shifts made by the user's brain over the course of an entire session.  As a result of this fact, it is possible for the reports to be skewed by physical movement, and other factors.

Example:  If the doorbell rang and then the dog barked during the last two minutes of a session, the reports could potentially show someone's reaction to the stimuli more than it would or could show a user's real progress over the course of that particular session.

Because the reports are just snapshots in time, there may be other factors impacting them that are less than obvious.  Some of these factors include, but are not limited to:

  • User's emotional state at session beginning vs. session end
  • User remembering a stressful/traumatic event
  • User's relative comfort or discomfort
  • The time of day, etc.

Due to the above, the primary metric for monitoring benefit should always be how the user is actually feeling, and whether or not things feel like they are improving and/or changing.