Voluntary control of semantic neural representations by imagery with conflicting visual stimulation


Publication/Creation Date
March 18 2022
Media Type
Journal Article
Persuasive Intent
Academic
Discursive Type
Inventions
Description
Abstract:

Neural representations of visual perception are affected by mental imagery and attention. Although attention is known to modulate neural representations, it is unknown how imagery changes neural representations when imagined and perceived images semantically conflict. We hypothesized that imagining an image would activate a neural representation during its perception even while watching a conflicting image. To test this hypothesis, we developed a closed-loop system to show images inferred from electrocorticograms using a visual semantic space. The successful control of the feedback images demonstrated that the semantic vector inferred from electrocorticograms became closer to the vector of the imagined category, even while watching images from different categories. Moreover, modulation of the inferred vectors by mental imagery depended asymmetrically on the perceived and imagined categories. Shared neural representation between mental imagery and perception was still activated by the imagery under semantically conflicting perceptions depending on the semantic category.
HCI Platform
Implantables
Relation to Body
In
Related Body Part
Brain
Source
https://doi.org/10.1038/s42003-022-03137-x

Date archived
March 21 2022
Last edited
March 21 2022
How to cite this entry
Ryohei Fukuma, Takufumi Yanagisawa, Shinji Nishimoto, Hidenori Sugano, Kentaro Tamura, Shota Yamamoto, Yasushi Iimura, Yuya Fujita, Satoru Oshino, Naoki Tani, Naoko Koide–Majima, Yukiyasu Kamitani, Haruhiko Kishima. (March 18 2022). "Voluntary control of semantic neural representations by imagery with conflicting visual stimulation". Nature Communications Biology. Springer Nature Publishing. Fabric of Digital Life. https://fabricofdigitallife.com/Detail/objects/5697