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. 2019 Jul 13;40(15):4470–4486. doi: 10.1002/hbm.24715

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© 2019 The Authors. Human Brain Mapping published by Wiley Periodicals, Inc.

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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(a) Experimental procedure of the functional tasks. A black fixation cross turned green to indicate upcoming stimuli. Unimodal or bimodal combinations were presented for 1,500 ms. Participants had to rate the pleasantness of the odor or the object, or the sound and the object, respectively. (b) Experimental conditions for olfactory–visual stimulation in a 3 × 3 factorial design. Conditions for auditory–visual stimulation were combined in the same manner [Color figure can be viewed at http://wileyonlinelibrary.com]