ABSTRACT
The cerebral representation of odor perception in man is poorly understood, especially when compared to other sensory modalities such as hearing, vision, and touch. In part, this results from the lack of appropriate instruments for specific stimulation of chemosensors, making investigations of these systems extremely difficult. Primary olfactory structures, namely the olfactory bulbs and tracts and the pyriform cortex that have been studied in animal experiments, have also been investigated extensively in humans.
