Research article summary:

Lexical decision of nonwords and pseudowords in humans: a positron emission tomography study.

Abstract Extract:
In this functional positron emission tomography study brain activations during an auditory lexical decision task with two experimental conditions were investigated. First, the subjects had to discriminate between real words and nonwords; second, real ... (Full abstract text below)

Published 2003Jul in Journal: Neurosci Lett (Language : eng)

Full Pubmed Extract

This information was retrieved, real-time, on your behalf from the public area of the Pubmed website:

1. Neurosci Lett. 2003 Jul;345(3):177-81

Lexical decision of nonwords and pseudowords in humans: a positron emission tomography study.

Specht K, Holtel C, Zahn R, Herzog H, Krause BJ, Mottaghy FM, Radermacher I, Schmidt D, Tellmann L, Weis S, Willmes K, Huber W

Division of Neurolinguistics, Neurology Department, University Hospital Aachen, Aachen, Germany. specht@mcbonn.de

In this functional positron emission tomography study brain activations during an auditory lexical decision task with two experimental conditions were investigated. First, the subjects had to discriminate between real words and nonwords; second, real words varied with pseudowords. Comparing each of these tasks to an auditory control condition we found bilateral activation of the superior temporal and inferior frontal gyrus, lateralized to the left in the pseudoword condition. The comparison of the lexical decision tasks revealed higher rCBF during the pseudo-/real word decisions within BA 47, adjacent to Broca's area, and the anterior cingulate. The data support the notion that the lexical decision during a nonword task is mainly based on a phonological discrimination process, whereas a pseudoword task more strongly requires lexical access resulting in activation of BA 47.

PMID : 12842285 [PubMed - Indexed for MEDLINE]

This information is obtained from the National Library of Medicine (NLM). Abstract text and other information may be subject to copyright. Type "NLM copyright" into Google for more information.

Full Author Information

First Name	LastName	Initials
Karsten	Specht	K
Chrisitane	Holtel	C
Roland	Zahn	R
Hans	Herzog	H
Bernd J	Krause	BJ
Felix M	Mottaghy	FM
Irmgard	Radermacher	I
Daniela	Schmidt	D
Lutz	Tellmann	L
Susanne	Weis	S
Klaus	Willmes	K
Walter	Huber	W

Affiliation: Division of Neurolinguistics, Neurology Department, University Hospital Aachen, Aachen, Germany. specht@mcbonn.de

3rd Party provider links

Click the links below to go to related 3rd party information:

MESH categories and related page links

This article was linked to the MESH categories shown on the left below. The links on the right are related Memletics pages.

Links for this article

For links to places where you can get the full text of this article see links. Note there may be a subscription or fee required for access to the full text.

New! Using similar technology to this site, we have launched find-health-articles.com, targeting over 1 million health research article abstracts.

Here are some articles related to this one (by title keywords):

Role of the cerebellum in motor cognition.

The role of the basal forebrain in episodic memory retrieval: a positron emission tomography study.

Right-sided human prefrontal brain activation during acquisition of conditioned fear.

The quantitative nature of a visual task differentiates between ventral and dorsal stream.

The neural substrate of orientation short-term memory and resistance to distractor items.

Influence of neighborhood size and exposure duration on visual-word recognition: evidence with the yes/no and the go/no-go lexical decision tasks.

Human brain regions involved in visual categorization.

Greater loss of 5-HT(2A) receptors in midlife than in late life.

Distinguishing visuospatial working memory and complex mental calculation areas within the parietal lobes.

Dissociable brain regions process object meaning and object structure during picture naming.

>>> Get more research article abstracts like these, or browse abstracts.

Keywords in this article:

access, activations, adjacent, anterior, area, auditory, ba, based, bilateral, brain, broca, cingulate, comparing, comparison, conditions, control, data, decision, decisions, discriminate, discrimination, emission, experimental, first, frontal, functional, gyrus, higher, inferior, investigated, lateralized, left, lexical, more, nonwords, notion, phonological, positron, process, pseudowords, rcbf, real, requires, resulting, revealed, second, strongly, study, subjects, superior, support, task, tasks, temporal, tomography, two, varied, whereas, words

Also, see our new free speed reading online course (beta version)