arrow
返回

Transient Perceptual Neglect: Visual Working Memory Load Affects Conscious Object Processing

delete2011-10-01
delete19
PRE
AI
S
Stephen M. Emrich *
H
Hana Burianová
S
Susanne Ferber
DOI:10.1162/jocn_a_00028delete
delete原文链接
delete原文求助
delete分享
delete收藏
摘要

摘要

En 中文
Visual working memory (VWM) is a capacity-limited cognitive resource that plays an important role in complex cognitive behaviors. Recent studies indicate that regions subserving VWM may play a role in the perception and recognition of visual objects, suggesting that conscious object perception may depend on the same cognitive and neural architecture that supports the maintenance of visual object information. In the present study, we examined this question by testing object processing under a concurrent VWM load. Under a high VWM load, recognition was impaired for objects presented in the left visual field, in particular when two objects were presented simultaneously. Multivariate fMRI revealed that two independent but partially overlapping networks of brain regions contribute to object recognition. The first network consisted of regions involved in VWM encoding and maintenance. Importantly, these regions were also sensitive to object load. The second network comprised regions of the ventral temporal lobes traditionally associated with object recognition. Importantly, activation in both networks predicted object recognition performance. These results indicate that information processing in regions that mediate VWM may be critical to conscious visual perception. Moreover, the observation of a hemifield asymmetry in object recognition performance has important theoretical and clinical significance for the study of visual neglect.
Keyword:
SHORT-TERM-MEMORY
POSTERIOR PARIETAL CORTEX
CAPACITY
VOLUNTARY
ATTENTION
FILES
AI总结

AI总结

对已上传原文的论文进行重点信息的提取,主要内容包括:简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。

期刊

Journal of Cognitive Neuroscience 封面图
Journal of Cognitive Neuroscience
IF:
3
论文数:
4.6K
被引数:
1.4W

机构

M
Macquarie University
学者数:
1.2W
论文数: 1.5W
被引数: 2.2W
U
university of toronto
学者数:
14.8W
论文数: 12.0W
被引数: 165
引用论文

引用论文

Risk assessment with low-pass whole-genome sequencing of cell-free DNA before CD19 CAR T-cell therapy for large B-cell lymphoma
err2022-08-04
err0
errOAAI
errHua-Jay J. Cherng; Ryan Sun; Bryant Sugg; Russell Irwin; Haopeng Yang; Cao Cuong Le; Qing Deng; Luis Fayad; Nathan H. Fowler; Simrit Parmar; Raphael Steiner; Fredrick Hagemeister; Ranjit Nair; Hun Ju Lee; Maria Rodriguez; Felipe Samaniego; Swaminathan P. Iyer; Christopher R. Flowers; Linghua Wang; Loretta J. Nastoupil; Sattva S. Neelapu; Sairah Ahmed; Paolo Strati; Michael R. Green; Jason Westin
err分享
err收藏
Influence of plasticizers in pectin films: Microstructural changes
err2015-07-01
err0
errOAAI
errS.D. Pasini Cabello; E.A. Takara; J. Marchese; N.A. Ochoa
err分享
err收藏
Wrapping Effects within a Proposed Function-Rescue Strategy for the Y220C Oncogenic Mutation of Protein p53
err2013-01-24
err0
errOAAI
errSebastián R. Accordino; J. Ariel Rodríguez Fris; Gustavo A. Appignanesi
err分享
err收藏
err分享
err收藏
学者 查看更多内容