Chapter 31B, Problem 2.3A

Define the following terms:
a. Alpha rhythm
b. Beta rhythm
c. Delta rhythm
d. Theta rhythm

Summary Introduction

To determine:

The definition of alpha rhythm.

Introduction:

The brain is the main organ in all the vertebrates and most invertebrates. It is an important part of the central nervous system. It is the most complex organ present in the human body, which is composed of around 100 billion nerve cells. The brain controls the functioning of all other organs and systems in the body.

Explanation of Solution

Alpha state is active when the brain is in its resting phase. The alpha waves have frequency between 8 and 17 hertz and maintain the calmness, mental coordination, learning, alertness, and mind and body combination.

Conclusion

Alpha rhythm is the electrical activity inside the brain when the brain is at rest.

Summary Introduction

To determine:

The definition of beta rhythm.

Introduction:

The brain is the main organ in all the vertebrates and most invertebrates. It is an important part of the central nervous system. It is the most complex organ present in the human body, which is composed of around 100 billion nerve cells. The brain controls the functioning of all other organs and systems in the body.

Explanation of Solution

Beta waves are active in the brain during waking consciousness. During this time, the brain does cognitive tasks and is attentive towards the outside world. Beta means the fast activity of the brain during logical thinking, attention, alertness, judgment making, and focused work.

Conclusion

Beta rhythm is the neural oscillations in the brain during waking consciousness.

Summary Introduction

To determine:

The definition of delta rhythm.

Introduction:

The brain is the main organ in all the vertebrates and most invertebrates. It is an important part of the central nervous system. It is the most complex organ present in the human body, which is composed of around 100 billion nerve cells. The brain controls the functioning of all other organs and systems in the body.

Explanation of Solution

Delta waves are very slow waves inside the brain. These waves have low frequencies but are deeply penetrating in nature. They are activated in meditation and sleep without dreams. The frequency of these waves resides between 0.5 and hertz.

Conclusion

Delta rhythm is activated when the brain is in meditation mode.

Summary Introduction

To determine:

The definition of theta rhythm.

Introduction:

The brain is the main organ in all the vertebrates and most invertebrates. It is an important part of the central nervous system. It is the most complex organ present in the human body, which is composed of around 100 billion nerve cells. The brain controls the functioning of all other organs and systems in the body.

Explanation of Solution

Theta waves are active when the brain does the functioning of memorizing, learning, and intuitions. In theta waves, senses are taken from the outside and then are focused on signals that originate the. The frequency of theta waves is between 3 and 8 hertz.

Conclusion

Theta waves are activated during memorizing and learning.