CENTERS OF IDEATION IN THE BRAIN. 



5 2 3 



Resume*: "After destruction of the angular gyrus the animal 

 commences to feel about cautiously ; if pushed to move, it runs 

 against every obstacle on its way. If put on the floor, it cries out 

 and looks about quite frightened. If called, it points its ears and 

 cries. If taken up again, it clings to one as if afraid of being put 

 down. On the other hand, threatening with the stick has no 

 effect unless the stick is brought in contact with the eyes." 



Munk (Functionen der Grosshirnrinde, page 25 etc.) makes 

 the same observations as Ferrier, only his region of destruction, 

 marked Ai (Fig. 4), includes a portion of brain where Gall located 

 his organ of " friendship " or 



" attachment " (/, Fig. 2) ; and 

 Munk, speaking of the effect, 

 says : " However, the animal re- 

 mains cold at the sight of men, 

 whom it used to greet most 

 friendly, and even at the sight 

 of dogs, with whom it used to 

 play " ; an effect which can be 

 easily explained on phrenologi- 

 cal principles by the loss of 

 the organ of " attachment " or 

 " friendship." He goes on to re- 

 mark that the whip, which for- 

 merly frightened the animal 

 away to a corner, has now no 

 effect. The animal stops before 

 every obstacle on its path and 

 turns back again ; one has to 

 push it to go up any steps, and 



then it feels its Way with its Fig. 4.-Diagbam. (Hermann Munk.) Extirpa- 



llOSe, though not blind. When tiun o^f area marked ^ causing loss of social 

 ' ° attachment, and of the emotion of fear. 



recovering, it stares at every- 

 thing and examines every object most cautiously, both when lying 

 down and walking about, just as if it had to learn afresh and gain 

 new experience. 



Goltz (Verrichtungen des Grosshirns, page 18, etc.) says it is 

 a well-known fact that animals are easily put into rage by the 

 appearance of a person in strange costume. He got his servant 

 dressed up in fantastic attire, and his dog would have torn him to 

 pieces had not proper precautions been taken. When the dog, 

 however, had been operated upon, and the experiment was repeat- 

 ed, he remained perfectly calm, even when the servant stepped 

 quite close to him, though the animal was by no means blind: 



It is not difficult to detect in all these experiments an affection 

 of some faculty which, when excited, causes timidity. What the 



