﻿426 
  

  

  Dr. 
  D. 
  Ferrier 
  on 
  the 
  Brain 
  of 
  Monkeys. 
  

  

  of 
  this 
  region, 
  and 
  an 
  attempt 
  made 
  to 
  interpret 
  the 
  signification 
  of 
  these 
  

   movements 
  of 
  the 
  eyeballs. 
  

  

  Superior 
  temporo-sphenoidal 
  convolution, 
  circles 
  Q-4)» 
  fig. 
  2 
  (extend- 
  

   ing 
  for 
  about 
  two 
  thirds 
  of 
  its 
  length 
  from 
  above 
  downwards). 
  

  

  The 
  results 
  are 
  only 
  completely 
  described 
  after 
  VII., 
  as 
  the 
  ear 
  was 
  not 
  

   particularly 
  observed 
  in 
  the 
  experiments 
  going 
  before. 
  Results 
  : 
  — 
  

  

  I. 
  Eyes 
  opened 
  and 
  head 
  turned 
  to 
  the 
  right. 
  Nothing 
  observed 
  as 
  to 
  

  

  the 
  state 
  of 
  the 
  pupils 
  or 
  ear. 
  

  

  II. 
  Eyes 
  open 
  ; 
  eyeballs 
  directed 
  to 
  the 
  left, 
  pupils 
  dilate. 
  

  

  III. 
  Eyes 
  to 
  the 
  right, 
  pupils 
  dilate. 
  

  

  IV. 
  Head 
  and 
  eyes 
  quickly 
  turn 
  to 
  the 
  right. 
  Pupils 
  not 
  observed. 
  

  

  V. 
  Not 
  explored. 
  

  

  VI. 
  Not 
  explored. 
  

  

  VII. 
  Retraction 
  (pricking) 
  of 
  the 
  right 
  ear, 
  eyes 
  widely 
  opened, 
  pupils 
  

   dilated, 
  and 
  head 
  and 
  eyes 
  turned 
  rapidly 
  to 
  the 
  right. 
  

  

  VIII. 
  Retraction 
  of 
  right 
  ear, 
  head 
  to 
  the 
  right, 
  eyelids 
  opened 
  widely, 
  

   eyes 
  directed 
  to 
  the 
  right 
  with 
  great 
  dilatation 
  of 
  the 
  pupils. 
  

  

  IX. 
  Retraction 
  of 
  left 
  ear, 
  eyes 
  opened 
  widely, 
  head 
  quickly 
  turned 
  to 
  

   the 
  left. 
  Pupils 
  not 
  observed. 
  

  

  X. 
  Retraction 
  of 
  left 
  ear, 
  head 
  and 
  eyes 
  turned 
  to 
  the 
  left, 
  and 
  dilata- 
  

  

  tion 
  of 
  the 
  pupils. 
  

  

  XI. 
  Retraction 
  of 
  right 
  ear, 
  eyes 
  and 
  head 
  turned 
  to 
  the 
  right, 
  with 
  

   dilatation 
  of 
  the 
  pupils. 
  

  

  XII. 
  A 
  precisely 
  similar 
  result 
  on 
  left 
  side. 
  

  

  XIII. 
  Exactly 
  same 
  as 
  XII. 
  

  

  The 
  uniformity 
  in 
  the 
  later 
  experiments 
  is 
  complete. 
  The 
  results 
  

   obtained 
  are 
  always 
  quick 
  and 
  decided 
  ; 
  they 
  seem 
  a 
  combination 
  of 
  

   pricking 
  of 
  the 
  ear, 
  along 
  with 
  the 
  effects 
  described 
  as 
  resulting 
  from 
  

  

  stimulation 
  of 
  the 
  frontal 
  regions 
  (circle 
  f^))« 
  Their 
  significance 
  will 
  

  

  be 
  alluded 
  to 
  subsequently. 
  

  

  The 
  lower 
  extremity 
  of 
  the 
  same 
  temporo-sphenoidal 
  convolution 
  gave 
  

   no 
  results 
  in 
  any 
  of 
  the 
  animals 
  in 
  which 
  this 
  region 
  was 
  experimented 
  

   on, 
  viz. 
  L, 
  V., 
  VIII., 
  IX., 
  X., 
  and 
  XIII. 
  

  

  Middle 
  temporo-sphenoidal 
  convolution 
  (from 
  the 
  pli 
  de 
  passage 
  

   downwards). 
  

  

  Nothing 
  very 
  definite 
  was 
  arrived 
  at. 
  In 
  some 
  the 
  results 
  were 
  alto- 
  

   gether 
  negative 
  ; 
  in 
  others 
  the 
  following 
  phenomena 
  were 
  noted, 
  per- 
  

   haps 
  not 
  altogether 
  satisfactory 
  as 
  to 
  their 
  nature. 
  

  

  IX. 
  On 
  irritation 
  of 
  the 
  lower 
  end 
  of 
  the 
  temporo-sphenoidal, 
  just 
  

   anterior 
  to 
  the 
  lower 
  temporo-sphenoidal 
  convolution, 
  a 
  pursing 
  

  

  