Brain Mechanisms of Serial and Parallel Processing during Dual-Task Performance

对偶(语法数字) 任务(项目管理) 串行存储器处理 并行处理 计算机科学 神经科学 认知心理学 心理学 并行计算 管理 经济 艺术 文学类
作者
Mariano Sigman,Stanislas Dehaene
出处
期刊:The Journal of Neuroscience [Society for Neuroscience]
卷期号:28 (30): 7585-7598 被引量:243
标识
DOI:10.1523/jneurosci.0948-08.2008
摘要

The psychological refractory period (PRP) refers to the fact that humans typically cannot perform two tasks at once. Behavioral experiments have led to the proposal that, in fact, peripheral perceptual and motor stages continue to operate in parallel, and that only a central decision stage imposes a serial bottleneck. We tested this model using neuroimaging methods combined with innovative time-sensitive analysis tools. Subjects performed a dual-task visual–auditory paradigm in which a delay of 300 ms was injected into the auditory task either within or outside of the dual-task interference period. Event-related potentials indicated that the first ∼250 ms of processing were insensitive to dual-task interference, and that the PRP was mainly reflected in a delayed global component. By a clustering analysis based on time-resolved functional magnetic resonance imaging, we identified networks with qualitatively different timing properties: sensory areas tracked the objective time of stimulus presentation, a bilateral parietoprefrontal network correlated with the PRP delay, and an extended bilateral network that included bilateral posterior parietal cortex, premotor cortex, supplementary motor area, anterior part of the insula, and cerebellum was shared by both tasks during the extent of dual-task performance. The results provide physiological evidence for the coexistence of serial and parallel processes within a cognitive task.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
柚子青芒完成签到,获得积分20
1秒前
copycat发布了新的文献求助10
2秒前
刍青完成签到,获得积分10
3秒前
自觉的夏蓉完成签到,获得积分10
3秒前
4秒前
GreyHeron关注了科研通微信公众号
4秒前
xk发布了新的文献求助10
8秒前
10秒前
123发布了新的文献求助10
13秒前
XYZ完成签到 ,获得积分10
15秒前
16秒前
16秒前
111111111111111完成签到,获得积分10
17秒前
20秒前
yyyyy发布了新的文献求助10
21秒前
慕青应助爱撒娇的紫菜采纳,获得10
21秒前
SSS木南发布了新的文献求助10
22秒前
25秒前
25秒前
26秒前
26秒前
28秒前
28秒前
小白发布了新的文献求助10
29秒前
123发布了新的文献求助10
29秒前
Akim应助xxxhhh采纳,获得10
30秒前
王学成发布了新的文献求助10
31秒前
沫笙给沫笙的求助进行了留言
31秒前
GreyHeron发布了新的文献求助10
31秒前
远方发布了新的文献求助10
32秒前
33秒前
愉快的老三完成签到,获得积分10
35秒前
风趣采白发布了新的文献求助10
35秒前
从心完成签到,获得积分10
39秒前
xxxhhh完成签到,获得积分20
40秒前
40秒前
41秒前
Yangyang完成签到,获得积分10
41秒前
41秒前
丘比特应助小白采纳,获得10
42秒前
高分求助中
Ophthalmic Equipment Market by Devices(surgical: vitreorentinal,IOLs,OVDs,contact lens,RGP lens,backflush,diagnostic&monitoring:OCT,actorefractor,keratometer,tonometer,ophthalmoscpe,OVD), End User,Buying Criteria-Global Forecast to2029 2000
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 588
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3962406
求助须知:如何正确求助?哪些是违规求助? 3508495
关于积分的说明 11141362
捐赠科研通 3241248
什么是DOI,文献DOI怎么找? 1791412
邀请新用户注册赠送积分活动 872861
科研通“疑难数据库(出版商)”最低求助积分说明 803417