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FIGURE 7. Computation of “depth” by resolving a sensory discrepancy in binocular
vision; (
L
) networks computing the relation “
x
is left of
y
”; (
B
) networks comput-
ing the relation “
x
is behind
y
”.
and left side of the animal's body computes with
B
(
L
r
,
L
1
) a new “dimen-
sion,” namely, the relation
B
(
a
,
b
): “
a
is behind
b
with respect to
me
” (sub-
script
s
∫ “self”).
2.253 The results of these computations always imply a relation
(geometrical or otherwise) of the organism to its environment, as indicated
by the relative notion of “behind”; or to itself, as indicated by the absolute
notions of “
my
left eye” or “
my
right eye.” This is the origin of “self-
reference.”
2.254 It is clear that the burden of these computations is placed
upon the operations w which compute on the distribution functions r
x
.
2.26 For any of such operations to evolve, it is necessary that changes
in sensation dr
x
are compared with causes of these changes that are con-
trolled by the organism.
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