﻿MAR. 
  19, 
  1922 
  troland: 
  psychophysics 
  the 
  key 
  of 
  physics, 
  etc. 
  155 
  

  

  relationship 
  as 
  ordinarily 
  conceived 
  holds 
  between 
  any 
  individual 
  

   consciousness 
  and 
  the 
  non-existent 
  meaning 
  of 
  a 
  physical 
  scientific 
  

   description. 
  The 
  only 
  parallelism 
  of 
  reality 
  is 
  between 
  the 
  conscious 
  

   svstem 
  and 
  the 
  descriptive 
  system, 
  but 
  the 
  descriptive 
  system 
  em- 
  

   ploys, 
  in 
  general, 
  terms 
  which 
  are 
  not 
  suitable 
  to 
  the 
  nature 
  of 
  con- 
  

   sciousness. 
  The 
  psychical 
  monist 
  suggests 
  that 
  this 
  is 
  an 
  error, 
  the 
  

   description 
  having 
  actually 
  been 
  determined 
  in 
  its 
  logical 
  form 
  by 
  

   unrecognized 
  influences 
  emanating 
  actually 
  from 
  the 
  given 
  conscious- 
  

   ness, 
  so 
  that 
  the 
  tangled 
  threads 
  may 
  be 
  straightened 
  out 
  simply 
  by 
  

   substituting 
  in 
  the 
  description, 
  terms 
  and 
  elementary 
  relations 
  which 
  

   are 
  appropriate 
  to 
  psychical 
  manifolds 
  in 
  general. 
  The 
  explanation 
  

   of 
  psychophysical 
  parallelism 
  which 
  is 
  afforded 
  by 
  psychical 
  monism 
  

   is 
  therefore 
  analogous 
  to 
  one 
  which 
  would 
  show 
  why 
  the 
  shadow 
  of 
  

   a 
  man 
  should 
  follow 
  him 
  about 
  and 
  be 
  roughly 
  similar 
  to 
  him 
  in 
  

   contour 
  and 
  gesture. 
  Both 
  the 
  shadow 
  and 
  the 
  man 
  are 
  integral 
  

   parts 
  of 
  a 
  homogeneous 
  system, 
  but 
  they 
  happen 
  to 
  enter 
  into 
  a 
  peculiar 
  

   relationship 
  — 
  ^not 
  at 
  all 
  characteristic 
  of 
  the 
  structure 
  of 
  the 
  universe 
  

   as 
  a 
  whole 
  — 
  in 
  which 
  there 
  is 
  an 
  apparent 
  parallelism 
  of 
  parts 
  and 
  of 
  

   activities. 
  The 
  psychical 
  monist' 
  s 
  explanation 
  of 
  the 
  functional 
  

   relationship 
  which 
  psychophysiology 
  finds 
  to 
  hold 
  between 
  conscious- 
  

   ness 
  and 
  the 
  brain 
  process 
  is 
  every 
  whit 
  as 
  good 
  as 
  is 
  the 
  physicist's 
  

   explanation, 
  within 
  the 
  domain 
  of 
  optics, 
  of 
  the 
  relationship 
  which 
  

   obtains 
  between 
  object 
  points 
  and 
  image 
  points 
  in 
  reflecting 
  or 
  re- 
  

   fracting 
  systems. 
  The 
  exact 
  physical 
  counterpart 
  of 
  the 
  explanation, 
  

   however, 
  is 
  to 
  be 
  found 
  in 
  the 
  relation 
  existing 
  between 
  the 
  object 
  and 
  

   the 
  brain 
  process 
  in 
  the 
  mechanism 
  of 
  response 
  ; 
  for 
  the 
  exact 
  physical 
  

   picture 
  of 
  what 
  is 
  happening 
  when 
  my 
  consciousness 
  is 
  acting 
  upon 
  

   yours 
  is 
  given 
  by 
  my 
  brain 
  process 
  becoming 
  the 
  object 
  in 
  the 
  re- 
  

   sponse 
  propagation 
  which 
  culminates 
  in 
  your 
  brain 
  process. 
  

  

  The 
  psychical 
  monist. 
  however, 
  has 
  not 
  finished 
  when 
  he 
  has 
  dissi- 
  

   pated 
  the 
  mystery 
  of 
  psychophysical 
  dualism. 
  He 
  must 
  go 
  on 
  to 
  

   consider 
  the 
  larger 
  psychical 
  universe 
  which 
  lies 
  beyond 
  your 
  par- 
  

   ticular 
  consciousness 
  or 
  mine. 
  Since 
  the 
  facts 
  of 
  psychophysiology 
  

   indicate 
  that 
  my 
  introspective 
  consciousness 
  correlates 
  with 
  only 
  a 
  

   small 
  portion 
  of 
  what 
  you 
  perceive 
  or 
  conceive 
  as 
  my 
  physiological 
  

   organism, 
  the 
  question 
  obviously 
  arises 
  as 
  to 
  what 
  significance 
  can 
  

   be 
  assigned, 
  in 
  the 
  universe 
  external 
  to 
  your 
  consciousness, 
  to 
  the 
  

   remainder 
  of 
  my 
  organic 
  structure 
  and 
  processes 
  as 
  conceived 
  by 
  you. 
  

   In 
  the 
  first 
  place, 
  you 
  may 
  consider 
  the 
  fact 
  that 
  not 
  my 
  total 
  nervous 
  

  

  