Research article summary (published Dec 2002):

A neural network elicited by parametric manipulation of the attention load.

Full Abstract

We used a parametric experimental design to identify the rCBF variations related to a continuous variation of the attention load. The experiment involved goal-directed visual tasks. The length of time during which the subject's attention was engaged toward the external stimulus was taken as the factor of interest. The neural network revealed areas that positively (left cerebellum, bilateral MT/V5 complex and superior parietal lobule, right inferior temporal lobe and dorsolateral prefrontal cortex) or negatively (precuneus, anterior cingulate and medial superior frontal cortex) correlate with the attention load. Results demonstrate that the activity of these areas varies continuously as a function of the variation in the attention load.

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Author information

Author/s: Mazoyer, Patrick (P); Wicker, Bruno (B); Fonlupt, P (P);

Affiliation: INSERM Unité 280, Processus Mentaux et Activation Cérébrale, 151 Cours Albert Thomas, F69424 Lyon Cedex 03, France.

Journal and publication information

Publication Type: Journal Article

Journal: Neuroreport (Neuroreport), published in England. (Language: eng)

Reference: 2002-Dec; vol 13 (issue 17) : pp 2331-4

Dates: Created 2002/12/18; Completed 2003/04/15; Revised 2006/11/15;

PMID: 12488821, status: MEDLINE (last retrieval date: 12/26/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult Attention - physiology Brain Mapping Cerebellum - anatomy & histology; physiology Cerebral Cortex - anatomy & histology; physiology Cerebrovascular Circulation - physiology Cues Female Frontal Lobe - anatomy & histology; physiology Functional Laterality - physiology Humans

Humans Magnetic Resonance Imaging Male Nerve Net - physiology Neural Pathways - physiology Neuropsychological Tests Parietal Lobe - anatomy & histology; physiology Photic Stimulation Psychomotor Performance - physiology Reaction Time - physiology Temporal Lobe - anatomy & histology; physiology

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