However, you would most likely not make the mistake of associating any of these stimuli with the car crash. For example, you might also overhear the conversation of a nearby couple, see a bird flying into a tree, or smell the delicious scent of freshly baked bread from a nearby bakery (or all three!). Your perception during the car crash might include a lot of stimulation that was not relevant to the car crash. To return to our example: Let’s say the car crash you observed happened on Main Street in your town. To make matters more complicated, these stimuli come from multiple events spread out over both space and time. After all, the world is a “blooming, buzzing world of confusion” that constantly bombards our perceptual system with light, sound, heat, pressure, and so forth. Several theoretical problems are raised by multimodal perception. In other words, the information is combined and treated as a unitary representation of the world. Most of this research indicates that, at some point in perceptual processing, information from the various sensory modalities is integrated. The question is whether the various sources of information involved in this multimodal stimulus are processed separately by the perceptual system or not.įor the last few decades, perceptual research has pointed to the importance of multimodal perception: the effects on the perception of events and objects in the world that are observed when there is information from more than one sensory modality. In other words, your perception would be multimodal.
Indeed, unless someone was to explicitly ask you to describe your perception in unimodal terms, you would most likely experience the event as a unified bundle of sensations from multiple senses. However, all of this information would be relevant to the same thing: your perception of the car collision. Your nose might even be stimulated by the smell of burning rubber or gasoline. Your ears would be stimulated with patterns of acoustic energy emanating from the collision. Your eyes would be stimulated with patterns of light energy bouncing off the cars involved. You could describe the stimulus generated by this event by considering each of the senses independently that is, as a set of unimodal stimuli. For example, imagine if you witnessed a car collision. Give examples of multimodal and crossmodal behavioral effects.Īlthough it has been traditional to study the various senses independently, most of the time, perception operates in the context of information supplied by multiple sensory modalities at the same time.Explain the difference between multimodal phenomena and crossmodal phenomena.Describe the neuroanatomy of multisensory integration and name some of the regions of the cortex and midbrain that have been implicated in multisensory processing.Define the basic terminology and basic principles of multimodal perception.This module provides an overview of multimodal perception, including information about its neurobiology and its psychological effects. In other words, our perception is multimodal. Most of the time, we perceive the world as a unified bundle of sensations from multiple sensory modalities.
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