Functional Asymmetry of the Brain in Dichotic Listening

@article{Kimura1967FunctionalAO,
  title={Functional Asymmetry of the Brain in Dichotic Listening},
  author={Doreen Kimura},
  journal={Cortex},
  year={1967},
  volume={3},
  pages={163-178}
}
Summary This paper reviews the evidence relating lateral asymmetry in auditory perception to the asymmetrical functioning of the two hemispheres of the brain. Because each ear has greater neural representation in the opposite cerebral hemisphere, the predominance of the left hemispere for speech is reflected in superior recognition for words arriving at the right ear, while the predominance of the right hemisphere in melodic-pattern perception is reflected in superior identification of melodies… Expand

Figures and Tables from this paper

Predicting brain organization from dichotic listening performance: Cortical and subcortical functional asymmetries contribute to perceptual asymmetries
  • J. Sidtis
  • Medicine, Psychology
  • Brain and Language
  • 1982
TLDR
It is argued that the assumption of symmetrical, contralateral auditory pathway superiority during dichotic stimulation is only appropriate in roughly half of the dextral population and the assessment of complementary cortical functions should provide a way to reduce the confounding of cortical and subcortical contributions to auditory perceptual asymmetries. Expand
Dichotic listening studies of hemispheric asymmetry in brain damaged patients.
TLDR
The empirical evidence for structural versus attentional explanations of the right ear advantage (REA) phenomenon in dichotic listening is reviewed and it is concluded that the results favor a structural/anatomical explanation of the ear advantage phenomenon in DL, rather than an attentional bias explanation. Expand
Cerebral hemispheric involvement in the acquisition of new phonetic categories
TLDR
Multidimensional scaling analysis of dissimilarity ratings indicated that listening experience leads to increased perceptual differentiation of phonetic categories drawn from a language unfamiliar to the listener, supporting the position that speech perception mechanisms at the feature level may be distributed asymmetrically across the hemispheres. Expand
Hemispheric asymmetry of auditory evoked potentials to comparisons within and across phonetic categories.
  • T. Elmo
  • Psychology, Medicine
  • Scandinavian journal of psychology
  • 1987
TLDR
In 10 right-handed Ss, auditory evoked responses were recorded from left and right temporal and parietal scalp regions during simple discrimination responses to binaurally presented pairs of synthetic speech sounds, finding a late positive component was found to reflect the categorical or phonetic analysis of the stop consonants. Expand
Dichotic testing of partial and complete split brain subjects
TLDR
Four subjects with differing portions of the cerebral commissures sectioned tested in a consonant vowel dichotic listening task failed to identify any of the syllables presented to the left ear under dichotic presentation, even under conditions designed to optimize processing and output in favor of that ear. Expand
Hemispheric dominance, dichotic listening and lateral eye movement behaviour.
TLDR
Right ear superiority in dichotic listening was not significant and possible interhemispheric differences in the level of “activity”, facilitating or hampering perception of verbal material in the contralateral ear was interpreted. Expand
Hemispheric asymmetry for auditory perception of temporal order
TLDR
The results showed that the threshold for temporal order was smaller when the right-ear click preceded the left-ear Click compared to the opposite order of presentation, suggesting that the left hemisphere is the location for temporal processing in this task. Expand
Interpretation of outcome on dichotic listening tests following stroke.
  • N. Niccum, C. Speaks
  • Psychology, Medicine
  • Journal of clinical and experimental neuropsychology
  • 1991
TLDR
The conclusion reached is that variables other than dominance determine the direction of ear advantage for many aphasic listeners. Expand
A comparison of dichotic and visuo-acoustic competition in hemispherectomized patients
TLDR
Patients performing dichotic listening tasks after hemispherectomy easily reported a digit presented to the ear ipsilateral to their intact hemisphere despite the concurrent presentation of a visual digit to their contralateral field. Expand
Regional cerebral blood flow correlates of a dichotic listening task.
TLDR
For both groups, the DL task was associated with selective and significant increases in rCBF to the contralateral posterior temporal lobe and the finding of selective r CBF activation with dichotic stimulation may have potential implications for an understanding of the functional organization of the cerebral hemispheres. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 34 REFERENCES
"Cortical" hearing test and cerebral dominance.
TLDR
The results of the investigations performed by the authors definitely show that sensorial auditory perception lacks lateralization of motor expression, as cortical integration of the auditory message is a symmetric and equivalent function on both sides. Expand
Order of Report, Ear Asymmetry and Handedness in Dichotic Listening
When different numbers were presented simultaneously to each ear, Ss tended to report all the numbers from one channel before reporting any from the other (Broadbent effect). The results contradictedExpand
Left-right Differences in the Perception of Melodies
Normal subjects were given two auditory tests, one consisting of spoken digits presented dichotically, the other of melodies presented dichotically. On the Digits test, the score for the right earExpand
Dual functional asymmetry of the brain in visual perception
Abstract Verbal and nonverbal stimuli were presented to normal subjects by means of a tachistoscope. The method employed was that of successive random presentation to either the left or the rightExpand
Dichotic Listening and Cerebral Dominance
It has recently been suggested that errors of report in the sequential recall of simultaneously presented auditory stimuli may be due to the inferior perception of those stimuli, under conditions ofExpand
Tachistoscopic recognition, handedness, and cerebral dominance☆
Abstract Twenty left-handers and twenty right-handers were given a dichotic listening test and a tachistoscopic recognition test. On both tests, right-handers were significantly more accurate inExpand
Identification of Consonants and Vowels Presented to Left and Right Ears*
TLDR
The technique of dichotically presented pairs of synthetic CV syllables and pairs of steady-state vowels were used to examine whether all phonetic elements or all features of phonetic element are processed in the same way. Expand
Accuracy of Recognition for Speech Presented to the Right and Left Ears
Earlier reports by other authors had shown that recall of dichotically presented speech was better for words arriving at the right ear, while recognition of passages of music was better for musicExpand
INTRACAROTID SODIUM AMYTAL FOR THE LATERALIZATION OF CEREBRAL SPEECH DOMINANCE; OBSERVATIONS IN 123 PATIENTS.
TLDR
The mapping of cortical areas of speech within the dominant hemisphere during operations under local anesthesia has provided additional information about the areas of the cortex which subserve function of speech, but for any given patient was nearly always limited to one side. Expand
INTRACAROTID INJECTION OF SODIUM AMYTAL FOR THE LATERALIZATION OF CEREBRAL SPEECH DOMINANCE EXPERIMENTAL AND CLINICAL OBSERVATIONS
TLDR
Further studies regarding the technique of intracarotid injection of Sodium Amytal seemed indicated, particularly with regard to the margin of safety in relation to dose and to the effect of accidental injection into the vertebral artery. Expand
...
1
2
3
4
...