RT Journal
A1 Ehrlich GE
T1 FUseli's nightmare
JF JAMA
JO JAMA
YR 1969
FD September 1
VO 209
IS 9
SP 1368
OP 1368
DO 10.1001/jama.1969.03160220058028
UL http://dx.doi.org/10.1001/jama.1969.03160220058028
AB To the Editor:— 
    "The Nightmare" by Henry Fuseli illustrates a superstition prevalent in mountainous Central Europe. The inhabitants of Switzerland and western Austria believe it is unwholesome to sleep on one's back; trolls, known as Druden, heavily ascend the midnight stair to crouch on the chest of the sleeper. The resulting oppression prevents outcry and results in the symptoms which Dr. Schneck has so aptly described in his special report. As there are no horses in the legend, it is likely that the depicted mare was added later as stated.