Search research articles

关于 JoVE

概览领导团队博客 JoVE 帮助中心

作者

出版流程编辑委员会范围与政策同行评审常见问题投稿

图书馆员

用户评价订阅访问资源图书馆顾问委员会常见问题

研究

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments 存档

教育

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual 教师资源中心教师网站

使用条款与条件

相关概念视频

Cerebral Hemispheres

Cerebral Hemispheres

The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序

Same author

Pupil reflexes generate the peripheral drift illusion due to ON/OFF motion responses.

Vision research·2026

Same author

Octopus bimaculoides can learn to utilize a mirror to localize a reward outside the line of sight.

Current biology : CB·2026

Same author

Steerable autoencoders underlying remapping, spatiotopy, and visual stability.

Current opinion in neurobiology·2026

Same author

Frame effects across space and time.

Journal of vision·2026

Same author

The bookend effect.

i-Perception·2026

Same author

Different effects of flash-grab and frame stimuli on position shift and shape distortion.

Journal of vision·2026

Search research articles

相关实验视频

Updated: May 1, 2026

Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior

Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior

Published on: November 14, 2018

在多个对象跟踪过程中注意力响应函数的 Hemifield 特异性.

Marvin R Maechler¹, Eunhye Choe¹, Patrick Cavanagh²

¹Dartmouth College, Department of Psychological and Brain Sciences, Hanover NH USA.

The Journal of neuroscience : the official journal of the Society for Neuroscience

|March 27, 2025

概括

追踪多个对象参与大脑网络,活动因目标位置而有所不同. 这项研究揭示了注意力响应函数中的 hemifield 偏差,这可能解释了跟踪限制.

更多相关视频

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Published on: July 31, 2019

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients

Published on: December 16, 2022

相关实验视频

Last Updated: May 1, 2026

Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior

Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior

Published on: November 14, 2018

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Published on: July 31, 2019

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients

Published on: December 16, 2022

科学领域:

认知神经科学认知神经科学
神经成像是一种神经成像.
视觉空间注意力视觉空间注意力

背景情况:

多重对象跟踪 (MOT) 的难度随着目标数的增加而增加,调节注意力网络中的大脑活动.
注意响应函数 (ARF) 描述了负载依赖的活动,但半球或半球场失衡没有被检查.
空间注意力表现出半球效应/半球效应,例如半球忽视和容量限制.

研究的目的:

调查注意力响应函数 (ARF) 中是否存在半球或半球场失衡.
为了确定追踪对象的数量 (负载) 如何影响不同视觉半场的大脑活动.
通过纳入 Hemifield 偏差来扩大基于负载的 ARF 的理解.

主要方法:

功能性磁共振成像 (fMRI) 使用血氧水平依赖 (BOLD) 信号.
参与者 (n=19) 执行了多个对象跟踪任务,目标负载不同.
分析的重点是与逆侧与双侧目标呈现相关的不同大脑活动.

主要成果:

追踪物体的数量在大脑区域的广泛网络中双边调节活动.
早些时候的视觉流区域显示出对侧负载效应,而后来的区域则对侧侧负载反应.
背部注意网络 (叶和额叶) 受到对侧和侧侧负荷的显著影响.
一些头部区域对对侧负荷比侧负荷更敏感.

结论:

这项研究扩展了基于负载的ARF的正规观点,包括 hemifield偏差.
偏爱半场的地区可能会造成加工瓶,导致MOT的容量和速度限制.
这些发现挑战了对半空间疏忽的现有解释,并提升了对空间注意力和精神努力管理的理解.