The correct order is: beta, alpha, theta and delta waves.
Explanation:
Neuronal activity is an electrical activity that happens in our brain. When we talk about neurotransmitters, we are referring to molecules present in the brain that act as conductors of electrical activity between neurons. The fruit of which activity in the brain, it emits a series of waves. One produced in a state of consciousness and others in a state of relaxation, meditation or waking (during sleep). These frequencies are measured in the Hz (hertz) steps. They are called "brain waves".
We know of five major types of these brainwaves. Occurs when the brain has activity: Alpha; Beta; Gamma; Theta and Delta. During sleep, they appear in the following order: beta, alpha, theta and delta.
The order you are looking for would be beta, alpha, theta, then delta. Beta waves indicate the waking consciousness that we experience throughout the day. Alpha and theta waves display different levels of relaxation as we fall asleep. Delta waves are experienced in the deepest state of relaxation while in a deep sleep.
