Article2006

Early Experience Determines How the Senses Will Interact

214 citations0/0 files storedJournal of Neurophysiology

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Multisensory perception and integration Visual perception and processing mechanisms Tactile and Sensory Interactions

Abstract

Multisensory integration refers to the process by which the brain synthesizes information from different senses to enhance sensitivity to external events. In the present experiments, animals were reared in an altered sensory environment in which visual and auditory stimuli were temporally coupled but originated from different locations. Neurons in the superior colliculus developed a seemingly anomalous form of multisensory integration in which spatially disparate visual-auditory stimuli were integrated in the same way that neurons in normally reared animals integrated visual-auditory stimuli from the same location. The data suggest that the principles governing multisensory integration are highly plastic and that there is no a priori spatial relationship between stimuli from different senses that is required for their integration. Rather, these principles appear to be established early in life based on the specific features of an animal's environment to best adapt it to deal with that environment later in life.

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References

1994The merging of the senses 2004The Handbook of Multisensory Processing 2004The Handbook of Multisensory Processes 1983Interactions Among Converging Sensory Inputs in the Superior Colliculus 1996Spatial determinants of multisensory integration in cat superior colliculus neurons 1997Development of Multisensory Neurons and Multisensory Integration in Cat Superior Colliculus 1991Visual Instruction of the Neural Map of Auditory Space in the Developing Optic Tectum 1988Developmental plasticity in the visual and auditory representations in the mammalian superior colliculus

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