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Students studying the philosophy of mathematics were the subjects of an experiment to examine the functioning of the cerebral hemispheres. Results show that students whose right hemisphere is more developed than their left tended to prefer Platonistically presented logicism over nominalistical formalism. They also tended to prefer Brouwer's intuitionalism, which is based on Kant's temporal mode of perception, over Frege's geometrical approach. The result is tentatively explained by an information theoretical model of the brain's functioning and is related to the current discussion regarding constructivism and Kant's theory of consciousness.

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Suggests that the arousability theory of intelligence and personality of Robinson (1996) lacks two important factors: the influence of neural transmission errors and of hemisphericity on intelligence and personality. It is considered that at least two factors contribute to intelligence. The first factor is the potential energetic level of Hebb’s engrams, which may be related to arousability. The second factor is the probability of neural transmission errors. It is suggested that the theory of H.J. Eysenck, that a neural message is sent repeatedly until it is accepted identically a certain number of times, which is smaller for more intelligent subjects, is correct.

Applies the analytic‐synthetic dichotomy of hemispheric functioning suggested by Levy‐Agresti and Sperry to explain the chunking theory of Miller. Constructs a theory of cognition, based on cerebral functions which were discovered through hemispheric differences. Shows that all the arguments of Efron against the hemispheric paradigm are merely “puzzles” that can be solved within this paradigm. New findings of Efron and Yund were, in fact, predicted by a component of this theory.