These are excerpts and elaborations from my book "The Nature of Consciousness"
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Constructivism In the 1930s the Swiss
psychologist Jean Piaget introduced an important framework to study the growth of mind. The biological context of
his ideas is that living beings are in constant interaction with their
environment, and survival depends on maintaining a state of equilibrium between
the organism and the environment. The organism has to regulate its own behavior
in order to continuously adapt to the information flow from the environment. At
the same time the behavior of the organism shapes the environment, and, of
course, the aim of the organism is to shape the environment so as to maximize the
chances of maintaining the vital equilibrium. Cognition, therefore, is but
self-regulation. A dynamic exchange between
organism and environment is also the basis of his theory of knowledge, which he
labeled genetic epistemology. The cognitive process (the self-regulation)
consists in a loop of assimilation and accomodation. This process occurs in
stages. The development of children's intellect proceeds from simple mental
arrangements to progressively more complex ones not by gradual evolution but by
sudden rearrangements of mental operations that produce qualitatively new forms
of thought. Cognitive faculties are not
fixed at birth but evolve during the lifetime of the individual. First a child lives a
"literal" sensorymotor life, in which knowledge of the world is only
due to her actions in it. Slowly, the mind creates "schemas" of
behavior in the world. Autonomous, self-regulated functioning of
"schemas" lead to interiorized action. The child begins to deal
with internal symbols and introspection. Then the child learns to perform
internal manipulations on symbols that represent real objects, i.e. internal
action on top of external action. Finally,
the mental life extends to abstract objects, besides real objects. This
four-step transition leads from a stage in which the dominant factor is
perception, which is irreversible, to a stage in which the dominant factor is
thought, which is reversible. Language appears between the
sensorymotor and the symbolic stages, and is but one of the elements of symbolic
thought. As opposed to Jerry Fodor's innate "language of thought", symbolic representation is
constructed during the childs development. The minds growth is due to
the need to maintain a balance between the mind and its knowledge of the world.
Rationality is the overall way in which an organism adapts to its environment.
Rational action occurs every time the organism needs to solve a problem, i.e.
when the organism needs to reach a new form of balance with its environment.
Once that balance has been achieved, the organism proceeds by instinct.
Rationality will be needed only when the equilibrium is broken again. In conclusion, Piaget did not recognize a major role
for any innate knowledge. He only accepted a set of sensory reflexes and three
processes: assimilation, accomodation and equilibration. These processes are
very general, not specific to any domain. The same processes are supposed to
operate on development of language, reasoning, physics, etc. Piagets child is a
purely sensorymotor device. Piaget's stance is almost behavioristic, except that he grants the child an
inner growth. Back to the beginning of the chapter "Memory" | Back to the index of all chapters |
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