Lucubration

Definition and stakes

Portrait of Erasmus Darwin Erasmus Darwin,  Zoonomia, or, the Laws of Organic Life… (1796)

“ All of us have felt the pain of immoderate laughter; children have been tickled into convulsions of the whole body; and others have died in the act of laughing; probably from a paralysis succeeding the long continued actions of the muscles of respiration.
Hence we learn the reason, why children, who are so easily excited to laugh by the tickling of other people's fingers, cannot tickle themselves into laughter. The exertion of their hands in the endeavour to tickle themselves prevents the necessity of any exertion of the respiratory muscles to relieve the excess of pleasurable affection.
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Source: Wikisource

Portrait of James Sully James Sully,  An Essay on Laughter: Its Forms…

“ Further, it seems desirable to study the utterances of the spirit of fun through the whole gamut of its expression. The gros rire, the cacophonous guffaw, must not be regarded as too vulgar to be admitted here. The attempts in the past to build up a theory of the ludicrous have commonly failed through a fastidious and highly artificial restriction of the laughable attribute to the field of wit and refined humour which the cultivated man is in the habit of enjoying. ”
Source: Gutenberg

A. G. K. L'Estrange,  History of English Humour, Vol…

“ We should also exclude the laughter caused by inhalation of gas, and that of maniacs, which arising from some strange and unaccountable feeling is abnormal and imperfect, and known by a hollow sound peculiar to itself. None of these kinds of laughter are primary, they are but imperfect reflections of our usual modes of expression, and, excepting such cases, we may agree that M. Paffe is correct in observing that "Joy is an indispensable condition of laughter." Dr. Darwin refers to the laughter of idiots to prove that it may be occasioned by pleasure alone. ”
Source: Gutenberg

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