Possible answers:
(a). yes.
(b). no.
Does "In this way symbolic reference is a fusion of pure sense perceptions on the one hand and causal relations on the other, and that it is in fact the causal relationships that dominate the more basic mentality (as the dog illustrates), while it is the sense perceptions which indicate a higher grade mentality (as the artist illustrates)." correctly answer the question of What is the purpose of symbolic reference?
(b).