Research article summary:

Effect of task complexity on intelligence and neural efficiency in children: an event-related potential study.

Full Abstract

The present study investigates the effects of task complexity, intelligence and neural efficiency on children's performance on an Elementary Cognitive Task. Twenty-three children were divided into two groups on the basis of their Raven Progressive Matrix scores and were then asked to complete a choice reaction task with two test conditions. We recorded the electroencephalogram and calculated the peak latencies and amplitudes for anteriorly distributed P225, N380 and late positive component. Our results suggested shorter late positive component latencies in brighter children, possibly reflecting a higher processing speed in these individuals. Increased P225 amplitude and increased N380 amplitudes for brighter children may indicate a more efficient allocation of attention for brighter children. No moderating effect of task complexity on brain-intelligence relationship was found.

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Author information

First Name	LastName	Initials
Qiong	Zhang	Q
Jiannong	Shi	J
Yuejia	Luo	Y
Sainan	Liu	S
Jie	Yang	J
Mowei	Shen	M

Affiliation: Department of Psychology, Zhejiang University, Hangzhou, Zhejiang, PR China.

Grants:

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Neuroreport (Neuroreport).

Reference: 2007-Oct; vol 18 (issue 15) : pp 1599-602

Language: eng

PMID: 17885609 (status: MEDLINE) (last retrieval date: 12/14/2007)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult Data Interpretation, Statistical Electroencephalography Evoked Potentials - physiology Female Humans

Humans Intelligence - physiology Male Neurons - physiology Photic Stimulation Psychomotor Performance - physiology

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