Measuring the Differences between Spatial Intelligence in Different Individuals using Lyapunov Exponents

In this paper it is studied that there are statistically relevant differences in the brain activity intensity between subjects with an alleged higher development of Spatial Intelligence and those subjects without this alleged higher development. We will analyze their performance on a Spatial Intelligence task of identification, attention and recognition of virtual tridimensional geometric patterns. The interest group with alleged higher development of Spatial Intelligence was composed of Civil Engineering undergraduate students. These subjects are supposed to have a predisposition to develop the Spatial Intelligence, or develop it by exercising it in the everyday activities of the Civil Engineering undergraduate course. The other subjects are undergraduate students of Humans and Social sciences, who are supposed to have any special development in their Spatial Intelligence. The previous classification hypothesis was strengthened by applying a Battery of Reasoning Tests (BPR-5) to these subjects. We have recorded an 8-channel EEG from each subject during a Spatial Intelligence task of three-dimensional figures identification, attention and recognition. The EEGs were analyzed using their Largest Lyapunov Exponents (LLE) to test if they had statistically relevant differences between the two subjects groups brain activity.