Less is more: Removing a modality of an expected olfactory-visual stimulation enhances brain activation.

ABSTRACT: In recent years, multisensory integration of visual and olfactory stimuli has extensively been explored resulting in the identification of responsible brain areas. As the experimental designs of previous research often include alternating presentations of unimodal and bimodal stimuli, the conditions cannot be regarded as completely independent. This could lead to effects of an expected but surprisingly missing sensory modality. In our experiment, we used a common functional magnetic resonance imaging (fMRI) study design with alternating strong unimodal and bimodal olfactory-visual food stimuli, in addition to a slight overhang of the bimodal stimuli in an effort to examine the effects of removing a visual or olfactory congruent stimulus for older people (41-83 years). Our results suggest t

SUBMITTER: Schicker D 

PROVIDER: S-EPMC9057098 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature