The associative reasoning is scatter-brained and wandering. It is the mental frame of the abstract reasoning that eventually canalizes it. The abstract reasoning gives direction while the associative reasoning supports it with assorted information. Abstraction prompts assumptions while association inspires imagination. Abstraction creates simplified models of reality while association makes them consistent. Abstract reasoning generates virtual reality while associative reasoning authenticates it. The abstract reasoning ascribes meaning while the associative reasoning improves its plausibility.
The removal of receptors removes from reality and the ensuing cortical reorganization makes the removal believable.