ALPHA WAVE Meaning and
Definition
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Alpha waves are defined as a type of electrical activity that occurs in the brain, specifically the occipital lobe, at a frequency of around 8 to 12 cycles per second (Hertz). These waves are considered to be a characteristic feature of relaxed wakefulness and are commonly observed when individuals are awake but in a relaxed or resting state, with their eyes closed.
The term "alpha" stems from the Greek letter alpha, the first letter of the Greek alphabet, representing the notion that alpha waves were the first type of electrical brain activity identified and studied. They were initially discovered by Hans Berger, a German psychiatrist, in the early 20th century, through the use of an electroencephalogram (EEG) device.
Alpha waves are most commonly associated with a calm and relaxed state of mind, often found during meditation or light relaxation. They are characterized by their relatively regular and smooth rhythmic patterns on the EEG. When individuals engage in focused and attentive tasks or become more alert, the alpha wave activity tends to decrease, giving way to other types of brainwave activity.
The presence and amplitude of alpha waves can be influenced by various factors, such as an individual's level of relaxation, the state of their eyes (open or closed), and even the surrounding environment. Over the years, researchers have studied alpha waves extensively in order to better understand their relationship to cognitive states, consciousness, and mental health.
Common Misspellings for ALPHA WAVE
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Etymology of ALPHA WAVE
The word "alpha wave" originates from the Greek letter "alpha" (Α/α). In the context of brain waves, alpha waves refer to a specific frequency band of electrical activity that occurs in the human brain. The term "alpha" was chosen to represent this type of brain wave due to its association with the first letter of the Greek alphabet. The alpha wave pattern was discovered and identified by Hans Berger, a German neurologist, in the early 20th century.
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