BROWSE

Related Scientist

cnir's photo.

cnir
뇌과학이미징연구단
more info

ITEM VIEW & DOWNLOAD

Occipital, parietal, and frontal cortices selectively maintain task-relevant features of multi-feature objects in visual working memory

Cited 25 time in webofscience Cited 25 time in scopus
1,043 Viewed 217 Downloaded
Title
Occipital, parietal, and frontal cortices selectively maintain task-relevant features of multi-feature objects in visual working memory
Author(s)
Qing Yu; Won Mok Shim
Subject
Frontal cortex, ; Inverted encoding model, ; Parietal cortex, ; Task relevance, ; Visual cortex, ; Visual working memory
Publication Date
2017-08
Journal
NEUROIMAGE, v.157, no.2017, pp.97 - 107
Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
Abstract
Previous studies have shown that information held in visual working memory is represented in the occipital, parietal, and frontal cortices. However, less is known about whether the mnemonic information of multi-feature objects is modulated by task demand in the parietal and frontal regions. To address this question, we asked participants to remember either color or orientation of one of the two colored gratings for a delay. Using fMRI and an inverted encoding model, we reconstructed population-level, feature-selective responses in the occipital, parietal and frontal cortices during memory maintenance. We found that not only orientation but also color information can be maintained in higher-order parietal and frontal cortices as well as the early visual cortex when it was cued to be remembered. Conversely, neither the task-irrelevant feature of the cued object, nor any feature of the uncued object was maintained in the occipital, parietal, or frontal cortices. These results suggest a highly selective mechanism of visual working memory that maintains task-relevant features only. © 2017 Elsevier Inc
URI
https://pr.ibs.re.kr/handle/8788114/4050
DOI
10.1016/j.neuroimage.2017.05.055
ISSN
1053-8119
Appears in Collections:
Center for Neuroscience Imaging Research (뇌과학 이미징 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
27_심원목_Occipital, parietal, and frontal cortices...pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse