Biological Theory

, Volume 11, Issue 4, pp 192–206

A Mathematical Science of Qualities: A Sequel

Original Article

DOI: 10.1007/s13752-016-0248-0

Cite this article as:
Albertazzi, L. & Louie, A.H. Biol Theory (2016) 11: 192. doi:10.1007/s13752-016-0248-0


Following a previous article published in Biological Theory, in this study we present a mathematical theory for a science of qualities as directly perceived by living organisms, and based on morphological patterns. We address a range of qualitative phenomena as observables of a psychological system seen as an impredicative system. The starting point of our study is the notion that perceptual phenomena are projections of underlying invariants, objects that remain unchanged when transformations of a certain class under consideration are applied. The study develops with the observables, the entailed total order and metric, whence the algebra and the geometry of such a science, presenting a formal phenomenological model for phenomena that are not rigidly Euclidean. We show how non-Euclidean perception can have many useful (non-rigid) Euclidean formalizations, as well as locally-homeomorphic-to-Euclidean-space models. The mathematical models we provide are tested on the basis of results from experimental psychology, in particular from the field of color, time, and space perception.


Color Geometric model Qualitative Manifold Space Time 

Copyright information

© Konrad Lorenz Institute for Evolution and Cognition Research 2016

Authors and Affiliations

  1. 1.Center for Mind/Brain Sciences (CIMeC), and Department of HumanitiesUniversity of TrentoTrentoItaly
  2. 2.Stellenbosch Institute for Advanced Study (STIAS)StellenboschSouth Africa
  3. 3.OttawaCanada

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