Neurofeedback & Biofeedback

Neurofeedback: also known as Neurotherapy and EEG Biofeedback

Your Brain
Your brain is a complex, marvelous, unique connection of nerves, blood vessels and tissues.  It's texture is similar to custard in a bowl - soft, pliable and slippery.  Yet, it is the center of your nervous system and it receives, processes and sends messages to every cell and every part of your body.  The information received is from any of our seven senses...sight (Visual), sound (Auditory), touch (Tactile), smell (Olfactory), movement (Kinesthetic), taste (Gustatory) and intuition (Spiritual).  The incoming information is initially processed in the protective/reactive (Survival) areas of the brain.  These areas work in a reactive mode to help regulate our bodies and keep us safe.  The autonomic system, without thought, regulates the beating of our heart to adjusting the temperative in our body to help us to stop in our tracks and freeze in a dangerous situation.  The frontal area of our brain allows for decision making and is the responsive thoughtful part of our brain that acts as the braking system to prevent over reactivity.  Thus, for incoming information to move and be processed, integrated then sent out (Response), the brain must function fluidly.  When it does, it is called brain regulation.  This means that the brain, the vast network of the brain, is flexible, resilient, and self-regulating.

However, when there is a brain injury, the system becomes dysregulated or, in other words, the brain becomes stuck in specific brainwave patterns.  Thus, it no longer is resilient, flexible and often it becomes over-reactive (hyper arousal-anxiety).  When this happens, to protect itself, it shuts down causing (drepression, fatigue, inattentiveness).

Neurofeedback, otherwise also known as EEG (Electroencephalogram) Biofeedback, is a technology based learning technique that uses a computer to give information to a person about his or her own brainwave pattern in the form of EEG activity, in order to train the person to modify his or her own brainwaves. When the brain is not functioning properly, evidence of this usually shows up in EEG activity. EEG Biofeedback assists a person to alter his or her own brainwave characteristics by challenging the brain to learn to reorganize and function better. The EEG Biofeedback technique is a process in which subtle brainwave information is amplified and shown back to the trainee in the form of a computer game. The object of the training is to re-educate the brain to make voluntary changes via computerized graphic displays and auditory signals that encourage a change in mental state and thus challenge the brain to function more effectively.

The EEG Biofeedback technique has been found to be effective in treating a number of conditions. See the various therapeutic applications below.  EEG training is a gradual learning process with full programs taking 20 to 60 sessions.

History:
Neurofeedback (NF) 
  • Neurofeedback originates back to the 1960's when two different researchers,  Dr. Joe Kamyia and Dr. Barry Sterman, began to explore phenomenia associated with brainwaves.
  • During the 1960's, Dr. Joe Kamyia was studying consciousness by attempting to elicit "alpha wave" activity in the brain.  This is the type of wave the brain emits at a calming resting state.
  • He learned that some individuals could learn to identify when their brain was producing alpha waves and increase their production.  He also conducted the first ever EEG biofeedback training.
  • At the present time, the neurofeedback movement has spread internationally and is being widely recognized in the media and the medical community is also responding.  Numerous physicians are either becoming trained in neurofeedback or are referring patients to trained physicians for neurofeedback treatment.

Brainwaves:
From the raw EEG, waves are amplified and then refined into smaller parts by the means of electronic filters.  Currently there are seven unique frequencies, bandwidths and specific states or characteristics with each bandwidth.

Delta  1-4Hz    
This is seen in sleep, repairing of the brain, intuition, emotional radar, trauma and unconscious thought.

Theta 4-8 Hz
This is present in sub-conscious thought, insight, meditative and creative.

Alpha 8-12 Hz
This is the neutral, peaceful, relaxed state that is the gate that allows flow from restorative sleep to alertness.

Low Beta (SMR) 12-15 Hz
This is seen in mental alertness, physical relaxation.

Beta 15-21 Hz
This is being present, sustained attention, thinking, focusing, and conscious thought.

High Beta 21-32 Hz
This is hyper-vigilance, hyper-alertness, extreme anxiety, and PTSD.

Gamma 33-64
This is integrative thinking, creativity, learning, and the "ah."

Below are various methods for helping the brain to regulate itself:

Traditional Neurofeedback:  This is based on operant conditioning to help retrain the brain waves to optimal levels. 

LENS: (Low Energy Neurofeedback System) 
This system is based on restructuring the stuck patterns in the brain and to promote a balanced flexible state.

NeuroField:  This system allows the body to engage its own restorative systems as so to return to a balanced, homeostasis state.  Specific amplitude and frequency changes can be measured for the purpose of guiding the brain so that it can function more effectively.  NeuroField was designed to strengthen the body and promote healthy, balanced states.

Personal Roshi ("pRoshi"):  is a light/sound machine used to disrupt inefficient patterns in the brain.  The lights flash at a constantly varying speed, helping the brain to "get out of the rut" of current dysfunctional patterns.

Infrared Light as a healing modality.  The infrared light is used to calm the nervious system, reduce spasm and spasticity, relieve pain and reduce inflammation.

HEG (Hemoencephalography) measures the blood flow in the brain and gives feedback to encourage blood flow to the targeted regions.  This was specifically designed for helping with migraine headaches and depression.

Therapeutic Applications for Children and Teenagers The following disorders have published clinical evidence or clinical reports on the effectiveness of EEG Biofeedback:

Attention Deficit Hyperactivity Disorder / ADD

ADHD is characterized by behaviors such as inattention, distractibility and impulsivity. Researchers have identified three subtypes within this disorder dependant on the dominance of the behavior. One of the subtypes is characterized by the prevalence of inattention, another characterized by impulsivity and hyperactivity, and the third by a combination of inattention, hyperactivity and impulsivity.

Research has also indicated that children who suffer from ADHD appear to be less able to produce Beta brainwave activity above 14 Hz and experience more slow wave activity specially in the Theta brainwave region from 4-8Hz. In order to learn and concentrate at peak performance, the brain needs to emit high levels of Beta brainwaves and low levels of Theta brainwaves, as an imbalance is believed to be associated with poor concentration. EEG Biofeedback training aims at increasing Beta waves and decreasing Theta waves. In the process of the training the child is rewarded, via a computer game, to make voluntary brainwave activity changes. Using computerized graphic displays and auditory signals that encourage a change in mental state, the brain is challenged to function more effectively and thus teaches the child?s brain to improve skills of managing attention, arousal and to have better control over his or her own emotional state and behavior.

For more information about Neurofeedback. Please click Here.

Autism
EEG Biofeedback training has been shown to assist children with autism in the following areas: verbal, physical and social communication. Clinical evidence of improved speech, responsiveness, balance, understanding and appropriate facial expressions have been observed. EEG Biofeedback training has shown to assist in decreasing sensory sensitivities and to respond better to changes in the environment.

Epilepsy
EEG Biofeedback training was first used therapeutically for epilepsy and clinical research is most extensive in this area. It has been shown to assist in the treatment of the various types of epilepsy, including petit mal, grand mal and complex partial seizures. EEG Biofeedback training can be considered as another element in the management program as it has been shown to assist in the reduction of the medication dose required to achieve seizure control.

Learning Difficulties
learning difficulties can occur in one or more of the basic processes involved in understanding written or spoken language. Learning difficulties are believed to be a result of variations in the brain's functioning. Learning problems can occur in the auditory, memory or processing functions and cause problems in the understanding or remembering of words, in expressing or receiving oral or written language, in forming letters or in grasping mathematical concepts. EEG Biofeedback is becoming recognized for its application to learning difficulties. It has been found that children with learning difficulties show elevated levels of Alpha and Theta brainwaves and this could be disruptive to ongoing mental activities. EEG Biofeedback is aimed at lowering Alpha and Theta brainwaves and has shown to improve reading, writing, mathematics and drawing abilities as well as increasing IQ scores.
Dr. Aditi Shankardass: Using EEG to diagnose & treat learning disorders

Sleeping Problems
Sleeping problems involve difficulties related to sleep and can include bedwetting, sleep walking, sleep talking, night terrors and anxiety related to falling asleep. EEG Biofeedback training has been used successfully to assist these disorders as it normalizes brain self-regulation of physiological arousal and the first reported signs of change upon initiating EEG training, is improvement in the quality of sleep.

Therapeutic Applications for Adults
The following disorders have clinical evidence on the effectiveness of EEG Biofeedback

Anxiety and Panic Attacks
Historically Biofeedback is best known in the area of stress management and relaxation training. Anxiety as a disorder can be described by extreme reactions such as phobias and panic attacks or as severe tension, stage fright or performance anxiety. Anxiety is a sign of difficulties with self-regulation by the brain. EEG Biofeedback training gives the trainee specific information from his EEG, and is asked to bring aspects of it under control, training the brain to regulate itself better. This learned skill is subsequently unconsciously employed to aid in shifting to a more relaxed and appropriate high-performance state, assisting to overcome anxiety and panic attacks.

Auto-Immune Dysfunction
There is substantial empirical evidence that EEG Biofeedback training can assist the symptoms of auto-immune diseases, in which the immune system is at war with the normal functioning body. Diseases such as Diabetes, Rheumatoid Arthritis and Lupus have been observed to improve in that benefits are shown in terms of higher energy levels, better sleep, focused attention, reduced mood volatility, normalization of pain thresholds and improved overall well-being.

Chronic Pain
EEG Biofeedback has been successfully used with chronic pain sufferers. In chronic pain we assume that the injury, which originally gave rise to the pain, has healed, yet the pain survives and may have worsened over time. As pain continues over the long term, the pain threshold may become lower and the perception of pain may heighten. In other words, the brain pays more attention to the sensation of pain. Constant endurance of chronic pain can lower the brain?s threshold to pain, increasing the perception of pain experienced. EEG Biofeedback brainwave training can succeed in raising the threshold to pain and may even restore it to a normal level, thus lowering the perception of pain experienced. If there is continuing injury, the pain threshold can at least be returned toward normal values and pain ameliorated. The brain will have recalibrated the pain threshold.

Depression
EEG Biofeedback training addresses the basic mechanism by which the brain controls physiological arousal, in that it normalizes the arousal mechanism. The training is effective regardless of the cause by which the person has become depressed, whether from a genetic pre-disposition, physical or emotional trauma, or from a physiological change of unknown origin. As training proceeds the client may find that anti-depressant or stimulant medication may need to be lowered and hence the person should remain under medical care for his or her condition, so that the medication dose may be monitored.

Epilepsy
EEG Biofeedback training was first used therapeutically for epilepsy and clinical research is most extensive in this area. It has been shown to assist in the treatment of the various types of epilepsy, including petit mal, grand mal and complex partial seizures. EEG Biofeedback training can be considered as another element in the management program as it has been shown to assist in the reduction of the medication dose required to achieve seizure control.

Peak Mental Performance
EEG Biofeedback training has been used for a number of years in assisting a variety of client groups such as golfers, sports people, corporate executives and military personnel, to reach higher levels of mental performance. The training protocols address issues of physiological arousal, focus and attention, brain hemispheric balance, relaxation and executive function. EEG Biofeedback is a learning technique and training tool. The client will become aware of the changes being brought about with the training, and will be able to verify the progress toward a greater level of competency by periodic testing to validate such progress.

Sleeping Problems
There is clinical evidence that EEG Biofeedback training assists a variety of sleep disorders such as insomnia and sleep apnea, as well as other sleep problems like difficulty falling asleep, waking up often, etc. which are symptoms associated with states of anxiety and depression. Training with EEG Biofeedback has been shown to assist in normalizing brain self-regulation of physiological arousal and because of this; the first reported signs of change upon initiating EEG training is improvement in the quality of sleep.

Stroke/Minor Traumatic Brain Injury
Stroke may have consequences for a variety of brain functions. EEG Biofeedback training can assist with the recovery due to specific loss which the person has suffered, and can also be effective with the secondary symptoms such as malaise, poor sleep, irritability, depression, anxiety and so on. EEG Biofeedback is helpful in the long-term recovery of function. Training is done at the conventional cortical sites for the training of control of physiological arousal. Clinical evidence for the effectiveness of EEG Biofeedback in the treatment of minor traumatic brain injury has also shown that the training assists in reducing symptoms associated with this condition such as: loss of energy; headaches and chronic pain; dizziness and vertigo; memory impairment; difficulty concentrating; anxiety, depression, and mood swings; sleep disturbances and visual perceptual problems. Clinical experience has shown that significant further recovery can be elicited with EEG Biofeedback training even after other therapies have reach a plateau.

Tension Headaches & Migraines
EEG Biofeedback training has been found to be very successful in the remediation of tension headaches and migraines. The training aims at improving brain self-regulation and can induce a change in the physiological state, training the brain to have a higher threshold for headache onset. This is a learning process and testing with the T.O.V.A. or I.V.A. in order to assess a person?s attention skills is very useful, as attention is one of the most fundamental of brain processes, as it is a good indicator of status of brain self-regulation. More than 80% of people who complete the training regime report a remediation of headache syndromes.

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