percepção não é um evento da natureza...
o que ele quis dizer com isso?
o cérebro não interfere nos órgãos dos sentidos
ele só manda o significado da situação
para o organismo
equilíbrio
feedback quanto ao sucesso e fracasso

Merleau-Ponty’s important point, then, is that any acceptable explanation
of the brain activity underlying and giving rise to our comportment
requires that the organism be actively involved in seeking
a grip on the world and that it constantly receive feedback as to its
successes and failures, which guide and refine its tendency to move
toward a maximal grip on its environment. The brain basis of comportment,
therefore, cannot be an equilibrium formed in the brain
alone, but a tendency toward equilibrium of the active organism
in the situation that reflects the meaning of that situation for the
organism.(Dreyfus)

physical stimuli act upon the organism only by eliciting a global response
which will vary qualitatively when the stimuli vary quantitatively; with
respect to the organism they play the role of occasions rather than of cause;
the reaction depends on their vital significance rather than on the material
properties of the stimuli. Hence, between the variables upon which conduct
actually depends and this conduct itself there appears a relation of meaning,
an intrinsic relation. One cannot assign a moment in which the world acts
on the organism, since the very effect of this “action” expresses the internal
law of the organism. (MP, SC 174/161)24

a questão é que o cérebro não é a base a da intencionalidade motora

“How significance and intentionality could come to dwell
in molecular edifices or masses of cells is something which can
never be made comprehensible, and here Cartesianism is right” (PP
403/351/409).