Visual imagery of faces and cars in face-selective visual areas.

Autor: Sunday MA; Vanderbilt University, Nashville, TN, United States of America., McGugin RW; Vanderbilt University, Nashville, TN, United States of America., Tamber-Rosenau BJ; Vanderbilt University, Nashville, TN, United States of America.; University of Houston, Houston, TX, United States of America., Gauthier I; Vanderbilt University, Nashville, TN, United States of America.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2018 Sep 28; Vol. 13 (9), pp. e0205041. Date of Electronic Publication: 2018 Sep 28 (Print Publication: 2018).
DOI: 10.1371/journal.pone.0205041
Abstrakt: Neuroimaging provides a unique tool to investigate otherwise difficult-to-access mental processes like visual imagery. Prior studies support the idea that visual imagery is a top-down reinstatement of visual perception, and it is likely that this extends to object processing. Here we use functional MRI and multi-voxel pattern analysis to ask if mental imagery of cars engages the fusiform face area, similar to what is found during perception. We test only individuals who we assumed could imagine individual car models based on their above-average perceptual abilities with cars. Our results provide evidence that cars are represented differently from common objects in face-selective visual areas, at least in those with above-average car recognition ability. Moreover, pattern classifiers trained on data acquired during imagery can decode the neural response pattern acquired during perception, suggesting that the tested object categories are represented similarly during perception and visual imagery. The results suggest that, even at high-levels of visual processing, visual imagery mirrors perception to some extent, and that face-selective areas may in part support non-face object imagery.
Competing Interests: The authors have declared that no competing interests exist.
Databáze: MEDLINE
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