Die zentrale Rolle des Gedächtnisses in der Entwicklung von Lebewesen wurde von Biologen wie Ernst Haeckel, Ewald Hering und Jakob von Uexküll erkannt, wobei zwischen einem Artgedächtnis und einem individuellen Gedächtnis unterschieden wird. Ersteres ist für die Aufrechterhaltung und Weiterentwicklung einer artspezifischen Erscheinungsform verantwortlich, letzteres gestaltet die Erinnerung an individuelle Erfahrungen. Im vorliegenden Band werden die Vorstellungen dieser Biologen mit Ideen der Philosophen G.W.F. Hegel, Alfred N. Whitehead, John Dewey, Ernst Cassirer, Henri Bergson und Reto L. Fetz in einer kohärenten (...) Theorie der Organismen, die auch den Menschen und seine Geschichte umfasst, aufeinander abgestimmt. (shrink)

The properties of the phosphate uptake system of the cyanobacterium Anacystis nidulans have been studied during the transition from a phosphate-deficient non-growing state to a non-deficient growing state. In the phosphate-deficient state the high affinity phosphate transport system in the cell membrane is extremely adaptive. As a result of these adaptive features the phosphate transport system cannot be described by determinate, fixed parameters, because the transport system is influenced by the measurement of the uptake process itself. When the growing state (...) has been initiated by a persisting phosphate pulse, the transport system rapidly loses its adaptive features and can then be characterized by determinate parameters that remain unchanged for a long period of time, even if no uptake occurs in that time. Depending on the amount of phosphate stored during a pulse the cell makes a choice between slow or fast growth. In the latter case the light harvesting and energy converting machinery is completely reorganized before growth commences. Thereby the components of this machinery conform to each other and to the stable properties of the phosphate transport system. It is suggested that the mutual adjustment of these adaptive energy converting subunits is guided by attractors that function as the final cause for the development of the whole system.An application of this model to an analysis of the selforganization of aquatic ecosystems is discussed. (shrink)

Using a generalized conception of experience, from which all features characteristic for higher animals (such as consciousness and thought) have been removed, allowed relating experience to adaptive processes in lower organisms. The temporal vector character of every current experience, containing as well memories of past experiences as intentions for future activities, can then be found in the adaptive response of cyanobacteria to alterations in phosphate supply, particularly in energetic manifestations of this phenomenon. A possible analogy between adaptive events as the (...) “atomic units” of physiological adaptation and Whitehead's actual occasion of experience is discussed. (shrink)