Abstract

Central question of this essay is, whether it is possible to relate specific aspects of the organization of sensorimotor systems to specific aspects of the behaviour. The role of the auditory system as part of a system for vocalization or as part of a system for prey localization and the different roles of the trigeminal system in the feeding behaviour of different birds are considered. The ascending sensory systems seem to possess a comparable organization in the various species. Also the descending motor pathways from archistriatum and paleostriatal complex seem to be basically similar. Behavioural specialization may be expressed particularly in the organization of the intratelencephalic circuits and thus in the involvement of specific regions of neostriatum and hyperstriatum ventrale. In discussions on cerebralisation it will be necessary to take such differences in intratelencephalic organization into account