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Dichotic listening in patients with splenial and nonsplenial callosal lesions.
- Source :
-
Neuropsychology [Neuropsychology] 2002 Jan; Vol. 16 (1), pp. 56-64. - Publication Year :
- 2002
-
Abstract
- The authors found splenial lesions to be associated with left ear suppression in dichotic listening of consonant-vowel syllables. This was found in both a rapid presentation dichotic monitoring task and a standard dichotic listening task, ruling out attentional limitations in the processing of high stimulus loads as a confounding factor. Moreover, directed attention to the left ear did not improve left ear target detection in the patients, independent of callosal lesion location. The authors' data may indicate that auditory callosal fibers pass through the splenium more posterior than previously thought. However, further studies should investigate whether callosal fibers between primary and secondary auditory cortices, or between higher level multimodal cortices, are vital for the detection of left ear targets in dichotic listening.
- Subjects :
- Adult
Aged
Auditory Pathways physiopathology
Cerebrovascular Disorders complications
Cerebrovascular Disorders physiopathology
Corpus Callosum physiopathology
Female
Functional Laterality physiology
Hearing Disorders etiology
Humans
Magnetic Resonance Imaging
Male
Middle Aged
Phonetics
Severity of Illness Index
Cerebrovascular Disorders diagnosis
Corpus Callosum pathology
Dichotic Listening Tests
Hearing Disorders diagnosis
Subjects
Details
- Language :
- English
- ISSN :
- 0894-4105
- Volume :
- 16
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Neuropsychology
- Publication Type :
- Academic Journal
- Accession number :
- 11858226
- Full Text :
- https://doi.org/10.1037//0894-4105.16.1.56