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Fortschritt in der Darwinschen Evolution?

Author:

Güveniş, Halil

Category:

Research Papers

Sub-Category:

Biology / Medicine

Language:

German

Date Published:

July 10, 2013

Downloads:

447

Keywords:

N/A

Abstract:

Theodosius Dobzhansky, Francisco Ayala, Ledyard Stebbins und James Valen- tine haben in ihrem 1977 erschienenen, klassischen Lehrbuch über Evolution die Ansicht vertreten, dass die Fähigkeit zum Informationsammeln und -verarbeiten während der Evolutionsgeschichte zugenommen hat und dass diese Zunahme als ein Zeichen des evolutionären Fortschritts angesehen werden kann. Ausgehend von dieser These schlagen wir in der vorliegenden Arbeit vor, auf der Basis der Input-Verarbeitung-Output-Verhältnisse im menschlichen Gehirn das Gesamt- und das Teilmodell der Verhaltenssteuerung zur Grundlage des evolutionären Fortschritts zu machen. Wir unterscheiden vier Ebenen der Verhaltenssteuerung: 1. monosensorische, 2. multisensorisch-modale, 3. multimodal-assoziative, 4. metamodal-symbolische Informationsverarbeitung. Außerdem schlagen wir vor, jede Steuerungsebene in drei Komplexitätsstufen zu unterteilen: 1. Bildin- tegration, 2. Einzelbildverarbeitung, 3. Mehrfachbildverarbeitung. Ob allerdings diese zwölfstufige Hierarchie einen Fortschritt in der Darwinschen Evolution darstellt oder nicht, kann erst entschieden werden, wenn unter dem Gesichts- punkt der Evolution der Verhaltenssteuerung der neuroethologische Stamm- baum der biologischen Arten, Familien und Gattungen erstellt worden ist.

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