﻿18 
  

  

  Dr. 
  A. 
  D. 
  Waller. 
  

  

  Later, 
  when 
  I 
  had 
  come 
  to 
  a 
  definite 
  opinion 
  that 
  the 
  emotive 
  effect 
  is 
  to 
  

   be 
  regarded 
  as 
  being 
  due 
  to 
  diminished 
  resistance 
  ( 
  = 
  increased 
  conductance) 
  

   rather 
  than 
  to 
  increased 
  electromotive 
  force, 
  I 
  thought 
  it 
  necessary 
  to 
  take 
  

   observations 
  of 
  the 
  varying 
  resistance 
  of 
  the 
  palm 
  of 
  the 
  hand 
  at 
  all 
  hours 
  of 
  

   the 
  day 
  and 
  night 
  for 
  periods 
  sufficiently 
  long 
  to 
  bring 
  out 
  the 
  periodicity 
  

   that 
  appeared 
  to 
  affect 
  the 
  change 
  under 
  the 
  ordinary 
  conditions 
  of 
  daily 
  life. 
  

  

  Obviously, 
  an 
  acquaintance 
  with 
  the 
  normal 
  variations 
  of 
  magnitude, 
  apart 
  

   from 
  its 
  intrinsic 
  interest, 
  is 
  the 
  indispensable 
  preface 
  to 
  an 
  exact 
  study 
  of 
  

   the 
  emotive 
  response. 
  There 
  is, 
  in 
  point 
  of 
  fact, 
  a 
  general 
  relation 
  between 
  

   response 
  and 
  resistance 
  that 
  I 
  am 
  not 
  yet 
  able 
  to 
  state 
  with 
  sufficiently 
  

   complete 
  numerical 
  evidence, 
  but 
  that 
  I 
  hope 
  to 
  deal 
  with 
  on 
  a 
  future 
  

   occasion. 
  

  

  The 
  particular 
  object 
  of 
  this 
  communication 
  is 
  to 
  give 
  the 
  results 
  of 
  

   observation 
  of. 
  the 
  normal 
  course 
  of 
  conductance 
  values 
  during 
  the 
  24 
  hours 
  

   on 
  the 
  palm 
  of 
  my 
  own 
  hand 
  (chiefly 
  the 
  left 
  hand). 
  The 
  series 
  of 
  values 
  is 
  

   tabulated 
  and 
  plotted. 
  The 
  particular 
  results 
  systematically 
  recorded 
  for 
  the 
  

   left 
  palm 
  have 
  been 
  occasionally 
  compared 
  with 
  measurements 
  taken 
  on 
  the 
  

   right 
  palm 
  and 
  on 
  other 
  parts 
  of 
  my 
  own 
  person, 
  as 
  well 
  as 
  upon 
  the 
  palms 
  

   and 
  other 
  parts 
  of 
  other 
  persons 
  at 
  various 
  times 
  of 
  day. 
  

  

  I 
  find 
  it 
  impossible 
  to 
  avoid 
  reference 
  to 
  theoretical 
  considerations 
  in 
  

  

  37° 
  

  

  3$ 
  

  

  35 
  c 
  

  

  

  

  

  

  

  

  

  3 
  

  

  13 
  

  

  „ 
  A 
  

  

  6X. 
  

  

  s34 
  

  

  T. 
  

  

  

  ■ 
  i 
  

  

  

  

  

  

  

  

  

  

  

  

  .26 
  

  

  20 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  ■ 
  

  

  

  

  

  

  

  40 
  

   30 
  

   20 
  

  

  10 
  

  

  

  

  A 
  temperature 
  curve 
  for 
  the 
  

   24 
  -hour 
  cycle 
  

  

  Soon 
  

  

  60 
  

   50 
  

   40 
  

  

  30 
  

  

  20 
  

   10 
  

   

  

  

  59 
  A 
  

  

  

  

  Lble 
  

  

  

  

  46-1, 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  IP 
  

  

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  IO-S 
  

  

  

  

  8 
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  4 
  

   Man. 
  

  

  8 
  12 
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  4 
  

   Midn. 
  

  

  