THE INHERITANCE OF FAMILY TRAITS 103 



j. Hysteria. — This term is applied to a variety of symp- 

 toms that indicate a functional disturbance of the psychic 

 centres usually combined with a derangement of the lower 



I bjk ^ 



H anW allH (JIN 



JE 



S^iT^ 



B'ffitS] 



numerous 

 decendanis 

 all normal 



several 

 normal 



Fig. 67.— Pedigree of a family showing Huntington's chorea. Affected 

 persons (indicated by black symbols) are always derived from affected parents. 

 From original data furnished by Dr. S. E. Jelliffe; Smi-family. 



cerebral or spinal centres. The psychical symptoms ap- 

 proach mania on the one hand and show a more or less 

 complete loss of the moral sense on the other, so that many 



i 



•t 





^ 







13114115 



"SSffli'Jil wi'W) 



FiQ. 68. — Pedigree of a family with Huntington's chorea. All affected 

 persons (black symbols) have at least one affected parent. Hamilton, 1908, 

 p. 453. 



cases of larceny, assault, and sexual immorality are conse- 

 quent upon this disease. The emotions usually are dis- 

 turbed. The motor symptoms are frequently profound. 



