<p>The LENS, or Low Energy Neurofeedback System, purports to reset the neural-connectivity of the brain. The Low Energy Neurofeedback System (LENS) was developed in the early 1990s by Len Ochs, PhD, a northern California psychologist. LENS was created as an alternative to medication for brain-based problems and is often used along with psychotherapy. LENS is a computer-based software program that is connected to an EEG box, which measures brainwaves. LENS directly stimulates biochemical changes that are thought to help the brain regulate itself.</p><p>With the LENS, the client doesn’t “do” anything, and there is nothing to learn.&nbsp; The typical session with the LENS lasts 3-4 minutes.&nbsp; This means that the LENS works well for people who either cannot or will not pay attention to a computer screen for longer time periods.&nbsp;</p><p>The LENS works much faster than traditional neurofeedback with the number of</p><p>sessions ranging from as few as 1 to an overall average number of sessions of 20. Sessions are often as short as a few seconds and as long as five minutes.</p><p><br></p><p style="text-align: center;"><img src="@@PLUGINFILE@@/a-lens-feedback.png" alt="" width="919" height="234" role="presentation" class="img-responsive atto_image_button_text-bottom"><br></p><p style="text-align: center;">Figure : A LENS Neurofeedback System</p><p style="text-align: center;"><br></p><p>The LENS works well with problems of the Central Nervous System, which can be numerous.These include symptoms of anxiety-depression spectrum, attention deficits, behavior disorders, various sleep disorders, headaches and migraines, PMS and emotional disturbances. It is also useful for org anic brain conditions such as seizures, the autism spectrum, and cerebral palsy.&nbsp; These are all signs of Central Nervous System dysfunction which result in the body’s difficulty&nbsp;<span style="font-size: 1rem;">regulating itself.&nbsp;</span></p><p>High Performance Neurofeedback, aka HPN Ultra Low Power Neurofeedback, was invented by Cory Snook and is thought to be another version of the LENS. HPN is a type of brainwave based biofeedback&nbsp; that has shown promise of clinical efficacy in addressing the symptoms associated with Traumatic Brain Injury (TBI), Post-Concussive Syndrome, Post-Traumatic Stress Disorder (PTSD), Anxiety, Depression,&nbsp; “brain-fog,”&nbsp; and attention deficit disorders.</p><p>HPN measures and tracks the electrical activity of the brain (brainwaves) and then sends directly back to the brain a very weak, imperceptible signal containing information based on the just preceding brainwave activity.&nbsp; The power in the signal is estimated to be about 3 p W (picowatts).&nbsp; Although the power in this signal is amazingly small, the brain appears to be able to adjust its own functioning based on this feedback.</p>