quarta-feira, 5 de março de 2025

A percepção de si.

 O nosso organismo está constantemente a recolher, interpretar, a comparar com a memória das experiências anteriores e a construir um modelo interno, subjectivo do que existe ao nosso redor no mundo com o seu sistema nervoso.

"The organism is actively, subjectively, interpreting this information, bringing its prior experience and expectations to bear. Indeed, it also brings the prior experience of all its ancestors to bear through the evolutionary selected genetic preconfiguration of these systems in a way that is adapted to the regulariteis of the organis's enviorenment.

I move, therefore I am.

There is one final, importante implication of this predictive, interpretative, inferential view of perception (of the nervous system). The goal of all this perceptual work is to build up an internal model of what is out in the world - especialy to track waht is moving, how fast and in wich directions - so the organism can anticipate things and not just react to them.

(...) In a world filled with other creatures, knowing wich ones you can eat or mate with or should avoid makes the difference between life and death. That is why memory systems are a really good investement, enabling an organism to retain knowledge of the past to inform current action. At the same time, the long-range nature of vision and hearing - literally, the ability to see something coming from a mile away - also made a new cognitive activity worthwhile: planning. The knowledge of distant threats and opportunities could inform the choice of longer-term goals and multistep strategies to achieve them. Action selection moved from very immediate responses to localstimuli to planning over much longer timescales. As with the evolution of perception, this capability relied on additional levels of internal processing, which were decoupled from the immediacies of the environment. The imagined future thus also came to crucially inform decision making as much as the remembered past. The organisms that evolved these capabilities no longer just inhabited the here and now."

"

Kevin Mitchell


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