Regional cerebral blood flow during comprehension and speech (in cerebrally healthy subjects)

Journal Article · Sat Jul 01 04:00:00 EDT 1989 · Brain and Language; (USA)

DOI:https://doi.org/10.1016/0093-934X(89)90097-7· OSTI ID:5671417

Lechevalier, B; Petit, M C; Eustache, F; Lambert, J; Chapon, F; Viader, F ^[1]

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1. Service de Neurologie-Dejerine, Chu de Caen (France)

Regional cerebral blood flow (rCBF) was measured by the xenon-133 inhalation method in 10 cerebrally healthy subjects at rest and during linguistic activation tests. These consisted of a comprehension test (binaural listening to a narrative text) and a speech test (making sentences from a list of words presented orally at 30-s intervals). The comprehension task induced a moderate increase in the mean right CBF and in both inferior parietal areas, whereas the speech test resulted in a diffuse increase in the mean CBF of both hemispheres, predominating regionally in both inferior parietal, left operculary, and right upper motor and premotor areas. It is proposed that the activation pattern induced by linguistic stimulation depends on not only specific factors, such as syntactic and semantic aspects of language, but also the contents of the material proposed and the attention required by the test situation.

• OSTI ID: 5671417
• Journal Information: Brain and Language; (USA), Journal Name: Brain and Language; (USA) Vol. 37:1; ISSN 0093-934X; ISSN BRLGA
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BLOOD FLOW
BODY
BRAIN
CENTRAL NERVOUS SYSTEM
CEREBRAL CORTEX
CEREBRUM
DAYS LIVING RADIOISOTOPES
DYNAMIC FUNCTION STUDIES
EVEN-ODD NUCLEI
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEARNING
NERVOUS SYSTEM
NUCLEI
ORGANS
RADIOISOTOPES
SPEECH
XENON 133
XENON ISOTOPES