Data from: Cross-modal representation of chewing food in posterior parietal and visual cortex
Data files
Oct 10, 2024 version files 214.51 KB
Abstract
Even though the oral cavity is not visible, food chewing can be performed without damaging the tongue, oral mucosa, or other intraoral parts, with cross-modal perception of chewing possibly critical for appropriate recognition of its performance. This study was conducted to clarify the relationship of chewing food cross-modal perception with cortex activities based on examinations of the posterior parietal cortex (PPC) and visual cortex during chewing in comparison with sham chewing without food, imaginary chewing, and rest using functional near-infrared spectroscopy. Additionally, the effects of a deafferent tongue dorsum on PPC/visual cortex activities during chewing performance were examined. The results showed that chewing food increased activity in the PPC/visual cortex as compared with imaginary chewing, sham chewing without food, and rest. Nevertheless, those activities were not significantly different during imaginary chewing or sham chewing without food as compared with rest. Moreover, subjects with a deafferent tongue dorsum showed reduced PPC/visual cortex activities during chewing food performance. These findings suggest that chewing of food involves cross-modal recognition, while an oral somatosensory deficit may modulate such cross-modal activities.
Authors: Tomohiro Ishii, Noriyuki Narita, Sunao Iwaki, Kazunobu Kamiya, Michiharu Shimosaka, Hidenori Yamaguchi, Takeshi Uchida, Ikuo Kantake, Koh Shibutani
Description:
This README file describes the raw data tables accompanying the above publication.
Changes in cerebral blood flow (Oxy-Hb) in the occipital lobe and visual cortex were measured using Functional Near-Infrared Spectroscopy (fNIRS) in 9 subjects during 5 conditions: rest, chewing, sham, image, and anesthesia.
Tables:
- Sheets: This file includes the Oxy-Hb raw data tables obtained under rest, chewing, sham, image, anesthesia condition in 5 ROI (Post parietal cortex, Post parietal cortex/Visual association cortex, Visual association cortex/prestiate cortex, Prestiate cortex/Striate cortex, Striate cortex) described in the paper.
- Tables includes the Oxy-Hb raw data during 50 s of 20 s pre-task period, 10 s task period and 20 s post-task period.
- Abbreviation; anesth: aneshesia, s: second, mMmm: mmol・mm, ROI: Region of interest