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Other Sensory Responses and Multisensory Interactions 

Other Sensory Responses and Multisensory Interactions
Chapter:
Other Sensory Responses and Multisensory Interactions
Author(s):

Riitta Hari

, and Aina Puce

DOI:
10.1093/med/9780190497774.003.0015
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date: 26 February 2021

This chapter discusses olfactory and visceral responses as well as the MEG/EEG signature of multisensory interaction. Olfactory stimuli can be embedded in a continuous humified airflow where the stimuli are presented at intervals of tens of seconds to avoid short-term habituation. Visceral stimulation typically requires purpose-built stimulating electrodes for direct access to the viscera. Studies of multisensory interaction are necessary because our everyday experiences involve inputs from multiple senses, the temporal coincidence of which allows the brain to construct representations of unique objects or events. Detection and correct interpretation of the nonlinear multisensory interactions call for careful considerations of both the sites of interaction and the changes in the amplitudes of evoked responses and spontaneous activity.

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