Page 22 - Use Your Memory
P. 22

IS  YOUR  MEMORY  PERFECT?
                                          number of patterns, or 'degrees of freedom', throughout the brain
                                          is, to use his own words, 'so great that writing it would take a line of
                                          figures,  in normal manuscript characters, more than ten and a half
                                          million kilometres in length. With such a number of possibilities,
                                          the brain is a keyboard on which hundreds of millions of different
                                          melodies can be  played.'
                                           Your memory is the music.
                                          7  Near-Death - Type Experiences
                                          Many people have looked up at the surface ripples of a swimming
                                          pool  from  the  bottom,  knowing  that  they  were  going  to  drown
                                          within  the  next  two  minutes;  or  seen  the  rapidly  disappearing
                                          ledge of the mountain from which they have just fallen; or felt the
                                          oncoming  grid  of the  10-ton  lorry bearing  down  on  them  at  60
                                          miles per hour. A common theme runs through the accounts that
                                          survivors  of such  traumas  tell.  In  such  moments  of 'final  con-
                                          sideration'  the  brain  slows  all  things  down  to  a  standstill,
                                          expanding a  fraction  of a  second  into a lifetime,  and  reviews the
                                          total experience  of the individual.
                                           When pressed  to  admit that what  they had  really  experienced
                                          were a few highlights, the individuals concerned insisted that what
                                          they had experienced was their entire life, including all things they
                                          had completely forgotten until that instant of time. 'My whole life
                                          flashed  before me' has almost become a cliche that goes with the
                                          near-death experience.  Such a  commonality of experience  again
                                          argues  for  a  storage  capacity  of the  brain  that we  have  only  just
                                          begun to tap.
                                          8  Photographic Memory
                                          Photographic,  or  eidetic,  memory  is  a  specific  phenomenon  in
                                          which  people  can  remember,  usually  for  a very  short time, per-
                                          fectly and  exactly anything they have  seen. This memory usually
                                          fades, but it can be so accurate as to enable somebody, after seeing
                                          a  picture  of  1000  randomly  sprayed  dots  on  a  white  sheet,  to
                                          reproduce  them  perfectly.  This  suggests  that  in  addition  to the
                                          deep, long-term storage capacity, we also have a shorter-term and
                                          immediate  photographic  ability.  It  is  argued  that  children  often
                                          have this  ability as  a natural part of their mental functioning and
                                          that we train it away by forcing them to concentrate too much on
                                          logic  and  language  and  too  little  on  imagination  and  their other
                                          range  of mental skills.
                                          9  The  1000 Photographs
                                          In recent experiments people were shown  1000 photographs, one
                                          after the other, at a pace of about one photograph per second. The
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