Biology - Brain: Brain Activity During Meditation

The brain is an electrochemical organ - using electromagnetic energy to function. Electrical activity emanating from the brain is displayed in the form of brainwaves.

 

 

There are four categories of these brainwaves. They range from the high amplitude, low frequency delta to the low amplitude, high frequency beta. Men, women and children of all ages experience the same characteristic brainwaves. They are consistent across cultures and country boundaries.

During meditation brain waves alter.

• BETA - 13-30 cycles per second - awaking awareness, extroversion, concentration, logical thinking - active conversation. A debater would be in high beta. A person making a speech, or a teacher, or a talk show host would all be in beta when they are engaged in their work.
   
• ALPHA - 7-13 cycles per second - relaxation times, non-arousal, meditation, hypnosis
   
• THETA - 4-7 cycles per second - day dreaming, dreaming, creativity, meditation, paranormal phenomena, out of body experiences, ESP, shamanic journeys.

A person who is driving on a freeway, and discovers that they can’t recall the last five miles, is often in a theta state - induced by the process of freeway driving. This can also occur in the shower or tub or even while shaving or brushing your hair. It is a state where tasks become so automatic that you can mentally disengage from them. The ideation that can take place during the theta state is often free flow and occurs without censorship or guilt. It is typically a very positive mental state.

• DELTA - 1.5-4 or less cycles per second - deep dreamless sleep

Link: http://www.bibliotecapleyades.net/ciencia/ciencia_brain01.htm

Biology - Brain: Brain Waves

When you drop a small stone in water, you see waves. Similarly our heart and our brain have wave patterns. The wave pattern of the heart is measured by ECG (electro cardiograph). The brain waves are measured by EEG (electro encephalograph).

Using the brain wave studies, scientists have discovered that our brain waves are of four types.

The brain waves also have peaks that are similar to the peaks we see in water waves. The number of times the peak appears in one second is called "cycles per second ". For example, the electricity in India is of 50 cycles per second.

• Beta (13 to 25 cycles per second)
  This brain wave indicates that your conscious mind is in control. It indicates a mental state of logical thought, analysis, and action. You are alert and awake talking, speaking, doing, solving problems, etc.
   
• Alpha (8 to 12 cycles per second)
  This brain wave indicates relaxation and meditation. It is a state of relaxed alertness good for inspiration, learning facts fast.
   
• Theta (4 to 8 cycles per second)
  Deep meditation. This is associated with life-like imagination. This is best for suggestibility and inspiration. This brain wave is dominant in children of age 2 to 5.
   
• Delta (0.5 to 4 cycles per second)
  Deep dreamless sleep. Deep relaxation.

Left brain and right brain working together

Usually the left brain and the right brain waves are independent. They reach peaks independent of each other. During meditation and deep relaxation, the left brain waves and the right brain waves happen together.

 

For both, the peaks are reached together. This is called synchronization. Scientists now believe that synchronization makes much greater mind power available. This is associated with learning large amounts of information very quickly as well as with creativity. Brain self-control

Scientists had long believed that brain activity such as brain waves and secretion of brain chemicals were beyond conscious control. But, experiments on Swami Rama of the Himalayas and on biofeedback have now changed that belief. Now it is proven that some people can control their brain waves, etc. 

Link: http://www.bibliotecapleyades.net/ciencia/ciencia_brain01.htm

Study Questions with Answers - Part Six

51. What are some of the effects which can be produced by electricity?

Heat, light, power, music.

52. Upon what do these various effects depend?

Upon the mechanism to which electricity is attached.

53. What is the result of the action and interaction of the individual mind upon the Universal?

The conditions and experiences with which we meet.

54. How may these conditions be changed?

By changing the mechanism by which the Universal is differentiated in form.

55. What is this mechanism?

The brain.

56. How may it be changed?

By the process we call thinking. Thoughts produce brain cells, and these cells respond to the corresponding thought in the Universal.

57. Of what value is the power of concentration?

It is the very highest personal accomplishment which can be acquired, and the distinguishing characteristic of every successful man or woman.

58. How may it be acquired?

By faithfully practicing the exercises in this System.

59. Why is this so important?

Because it will enable us to control our thoughts, and since thoughts are causes conditions must be effects; if we can control the cause we can also control the effect.

60. What is changing conditions and multiplying results in the objective world?

Men are learning the basic methods of constructive thinking.

 Source:  http://www.psitek.net/pages/PsiTekTMKS14.html