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Stereoscopic 3D objects evoke stronger saliency for nonverbal working memory: An f MRI study
Author(s) -
Park JangWoo,
Kim YangTae,
Yun ByoungJu,
Jin SungUk,
Lee SangHoon,
Ahn ShiHyun,
Min Yusun,
Jung TaeDu,
Lee Hui Joong,
Chang Yongmin
Publication year - 2016
Publication title -
international journal of imaging systems and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.359
H-Index - 47
eISSN - 1098-1098
pISSN - 0899-9457
DOI - 10.1002/ima.22159
Subject(s) - functional magnetic resonance imaging , stereoscopy , salience (neuroscience) , working memory , neuroimaging , n back , psychology , voxel , insula , object (grammar) , neuroscience , computer science , cognitive psychology , computer vision , artificial intelligence , cognition
Effective working memory (WM) training is often desired to improve WM. Recent studies have suggested that WM training is more successful when participants monitor scenes in three‐dimensional (3D) environments. Although previous neuroimaging studies have examined visuospatial WM in relation to a 3D scene or object, these studies did not investigate WM using stereoscopic 3D object stimuli. We used functional magnetic resonance imaging (fMRI) to identify brain activation during an N‐back task with 3D object stimuli, and determined the difference in activation pattern between stereoscopic versus shaded 3D objects. We found that the anterior insula, ventral striatum, and posterior orbitofrontal cortex showed greater activation during the 2‐back task with stereoscopic 3D objects than with shaded 3D objects. These regions have previously been associated with a salience network.