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The year AD 1859 was an important year in the history of human thought because it was the year that:
Delta Waves
A type of high amplitude brain wave found in humans, typically associated with deep non-REM sleep.
EEG Recordings
Graphical recordings of the electrical activity of the brain obtained through electrodes placed on the scalp, used in neurological diagnosis and research.
Biological Cycles
Natural rhythms in living organisms, such as circadian rhythms, that regulate physiological processes.
Reflexive Gasping
An automatic and involuntary intake of air, usually triggered by a lack of oxygen or a sudden shock, serving as a critical survival mechanism.
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