Volume 1

The effects of alcohol and some other drugs during normal and fatigued conditions / [by William McDougall and May Smith].

  • William McDougall
Date:
1920
Catalogue details

Licence: Public Domain Mark

Credit: The effects of alcohol and some other drugs during normal and fatigued conditions / [by William McDougall and May Smith]. Source: Wellcome Collection.

    14/42 page 12
    lormaNamaiton phenomenon occurs several times from the sixteenth to the twenty- second. day. This particular cycle differs somewhat from the others. The aim was to see what difference was made if, instead of cutting down sleep for three nights in succession, the same loss of sleep was spread out over a longer period, i.e. one night with only 15 hours’ sleep was followed by a period of six days when more than the usual amount of sleep was taken; then a night with only 33 hours’ sleep occurred, followed by ten ordinary nights, when a third night of 54 hours’ sleep was spent. Now there are two alcohol ” | ) 7 | GrapH II. Showing the effect of alcohol on a ‘fatigue cycle’ when the loss of sleep occurred at intervals, and not on successive days. records on the eleventh and fourteenth days, each of which gives the usual increase of errors after the drug, viz. from 78 to 111 before to 177 and 174 after respectively, but on the seventeenth day 111 errors before alcohol are followed by 71 after, on the eighteenth day 105 errors are followed by 88. These records occur between the seventh and tenth day from the second night of diminished sleep; at this stage occurred the third night of short- ened hours of sleep with the result that the number of errors falls from 105 on the day before to the normal 77, which is followed by 73 half an hour after taking alcohol; on the next day 71 errors before alcohol is followed by 81 after, after which for three days alcohol is followed by a slight improvement, viz. 121, 93, and 107
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