Abstract
The cognitive basis of geometry is still poorly understood, even the ‘simpler’ issue of
what kind of representation of geometric objects we have. In this work, we set forward a tentative
model of the neural representation of geometric objects for the case of the pure geometry of Euclid.
To arrive at a coherent model, we found it necessary to consider earlier forms of geometry. We start
by developing models of the neural representation of the geometric figures of ancient Greek practical
geometry. Then, we propose a related model for the earliest form of pure geometry – that of
Hippocrates of Chios. Finally, we develop the model of the neural representation of the geometric
objects of Euclidean geometry. The models are based on the hub-and-spoke theory. In our view, the
existence of specific models opens the possibility of addressing the relationship between geometric
figures and geometric objects, in a novel way, in terms of their neural representation.