1.c) The human brain
Despite the numerous studies on how the human brain works, we should acknowledge that many of the questions asked regarding this subject continue to be an enigma. We will try to present some ideas about the logic of brain activity and the physiological structure suitable for its optimization, but warning of the presence of a significant, intuitive component in our reasoning.
The link between the human brain and modern computers is an enthralling subject given the similarities between these two mechanisms of storage and management of a tremendous amount of information.
We use the similarities between the way brains and computers work because of the advantage of a model that is much simpler and widely recognized by everyone.
The technological advances made by human beings has allowed designing machines capable of emulating certain cerebral operations, managing to surpass the human brain in specific instances, for example in the calculation and mathematical memory.
Due to both the intuitive nature and the extent of the subject, we are not trying to perform a systematic analysis of the human brain but instead, comment on some concepts in a simplified fashion. The ideas that can call the attention for being new or collecting contributions to the current culture concerning this subject, especially from the General Theory of Conditional Evolution of Life.
On the other hand, the rapid evolution of these cerebral operations that we believe to exist has been one of the more relevant reasons for the development and formulation of the cited theory.
The content of this book appeared initially in the appendix of the Conditional Evolution of Life book. The statistical study performed on the heritability of intelligence –The EDI Study– led to the definitive separation of the books to focus both on different yet, at the same time, linked subjects.
Time will tell if the new ideas are heading in a proper direction or not. We hope that it will not take long to shed light on the surprising results of the stated statistical study. They seem to confirm the hereditary nature of global and relational intelligence, the significance of the gene with less intelligence potential –IQ, a specific case of conditional intelligence–, essential functions of sexual differentiation, and the existence of a finalist evolution.
1.d) Human brain diagram
Advanced animals can be considered symbiotic macro-societies of more elemental units with their own lives –cells. The organization gives the group an enormous intellectual potential and its own will, independent of the elemental units.
The figure shows a functional diagram of the human brain representing graphically the central concepts and their connections, discussed in the following sections.
Modularity and connectionism in the human brain are two philosophical approaches that could well be complementary as shown by the human brain diagram below.
Likewise, the current theories on mental structures (constructivism - Jean Piaget and innatism - Noam Chomsky) appear to be two ways of looking at the complex reality; as far as we are concerned, they need not be so conflicting. Furthermore, we would not like to start discussing some of the simplifications and the rather unfounded affirmations of innatism.
The brain is the organ responsible for carrying out superior cognitive functions. Nevertheless, these are surely not the only functions the brain carries out, for example, the human brain's decision-making system can feasibly contain democratic processes with a connection to individual cells that in some instances may serve the purpose of a mere coordinator.