Multisensory processes in birds: From single neurons to the influence of social interactions and sensory loss
Résumé
World experiences involve multisensory stimulation that arises simultaneously from multiple sources. Yet, we experience a coherent and unified world. Many studies have focused on how sensory information from distinct modalities are integrated and showed that numerous behavioural and cognitive benefits are provided by multisensory processes. Much work has been done with mammalian models but research on avian species also expands our knowledge on multisensory processes. Avian species exhibit a great diversity of behaviours and these species have provided evidence that multisensory processes benefit by the learning that occurs in natural situations. Cross-modal influences on the control of sensorimotor processes occur in circumstances of sensory loss. Also, studies suggest pervasive multisensory influences throughout the avian brain. This review summarizes research done on the imprinting behaviour of precocial bird species, on the ability of barn owls to detect prey and on the vocal communication of songbirds.
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