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gamma wave
A gamma wave is a pattern of neural oscillation in humans with a frequency between 25 and 100 Hz, though 40 Hz is typical.〔
According to a popular theory, gamma waves may be implicated in creating the unity of conscious perception (the binding problem).〔〔Robert Pollack, (The Missing Moment ), 1999〕 However, there is no agreement on the theory; as a researcher suggests:
:Whether or not gamma wave activity is related to subjective awareness is a very difficult question which cannot be answered with certainty at the present time.
==History==
Gamma waves were initially ignored before the development of digital electroencephalography as analog electroencephalography is restricted to recording and measuring rhythms that are usually less than 25 Hz.〔 One of the earliest reports on them was in 1964 using recordings of the electrical activity of electrodes implanted in the visual cortex of awake monkeys.〔Hughes JR. (1964). Responses from the visual cortex of unanesthetized monkeys. pp. 99–153. In: Pfeiffer CC, Smythies JR, (Eds), International review of neurobiology vol. 7, Academic Press, New York 〕
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