The ability to deceive is regarded as the best evidence of the cogniti
ve ability separating humans from other primates. An alternative would
be to look at the concept of the soul, which has an archetypal signif
icance, emerging in various geographically remote cultures over the co
urse of history. The soul will be an elusive but not an impossible con
cept to study with neuroimaging. In parapsychotic grief the deceased m
ay appear to the bereaved person without these hallucinations being co
nsidered as indicative of mental illness. If this is the sort of norma
l human experience which has led to the emergence of the belief in the
immortality of the soul it may be a useful starting point for definin
g the neuroanatomical basis of souls which do not necessarily seek to
deceive. As the human prefrontal cortex expanded and developed and str
ove to understand mental activity derived from subcortical structures
the human attained an awareness of his own mind which has been constru
ed as a separable insubstantial but indestructible entity. This idea w
ould be bizarre if it were not archetypal and therefore must be closel
y linked to the development of the human central nervous system.