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Cortical Activity in the Left and Right Hemispheres during Language-Related Brain Functions
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Niels A. Lassen
Published/Copyright:
November 13, 2009
Abstract
The blood flow to a given brain region increases as the level of neural activity is augmented. Hence mapping of variations in regional cerebral blood flow affords a means of imaging the activity of various brain regions during various types of brain work. The paper summarizes the patterns of cortical activity seen during various language functions, emphasizing the practically symmetrical involvement in both hemispheres. A case of auditive agnosia (with complete cortical word deafness but preserved pure tone thresholds) is presented. The patient’s normal speech constitutes evidence that auditory feedback (absent in his case) is not a prerequisite for speaking.
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Received: 1980-01-01
Published Online: 2009-11-13
Published in Print: 1980-01-01
© 1980 S. Karger AG, Basel
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Articles in the same Issue
- Special Section
- Contents, Vol. 37, No. 1-2, 1980
- Preface
- Paper
- The Goal of Phonetics, Its Unification and Application
- Cortical Activity in the Left and Right Hemispheres during Language-Related Brain Functions
- Modern Methods of Investigation in Speech Production
- The Relations between Area Functions and the Acoustic Signal
- New Methods of Analysis in Speech Acoustics
Articles in the same Issue
- Special Section
- Contents, Vol. 37, No. 1-2, 1980
- Preface
- Paper
- The Goal of Phonetics, Its Unification and Application
- Cortical Activity in the Left and Right Hemispheres during Language-Related Brain Functions
- Modern Methods of Investigation in Speech Production
- The Relations between Area Functions and the Acoustic Signal
- New Methods of Analysis in Speech Acoustics
