The Effect of Memory Load on the Right Ear Advantage in Dichotic Listening

Past studies have shown that some female as well as left-handed students do not demonstrate a right-ear advantage (REA) for verbal materials, suggesting that linguistic functions may not be handled in one hemisphere exclusively. To examine these laterality effects more closely, 96 undergraduates were equally divided by sex and hand dominance. Moreover, experimental instructions as to which ear to focus on were provided in a dichotic listening procedure, with left-ear attendance alternating with right-ear across four counterbalanced blocks of 60 trials each. Analysis indicated a major interaction of sex × ear × instructions, with men showing a right-ear advantage when attending to that respective side, highlighting the importance of experimental demands on dichotic performance. The right-ear advantage in right-handed persons was uninfluenced by these instructions, suggesting more pronounced asymmetries in this group.

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Functional Brain Organization in Bipolar Affective Patients during Manic Phase and after Recovery: A Digit Dichotic Listening Study

Perceptual and Motor Skills ◽

10.2466/pms.1995.80.3c.1275 ◽

1995 ◽

Vol 80 (3_suppl) ◽

pp. 1275-1282 ◽

Cited By ~ 9

Author(s):

G. Kaprinis ◽

J. Nimatoudis ◽

A. Karavatos ◽

D. Kandylis ◽

S. Kaprinis

Keyword(s):

Dichotic Listening ◽

Right Hemisphere ◽

Functional Organization ◽

Normal Subjects ◽

Brain Organization ◽

Ear Advantage ◽

Functional Brain Organization ◽

Right Ear Advantage ◽

The Right ◽

Neuropsychological Findings

To study the functional organization of the cerebral hemispheres in patients with bipolar psychosis using a verbal dichotic listening test for pairs of digits 26 patients were tested twice, during the acute expression of manic phase and after recovery. The patient group during the manic phase did not support the expected right-ear advantage of normal subjects on verbal dichotic tests but showed a statistically significant left-ear advantage, which shifted after recovery toward the typical normal asymmetry. Comparing patients during the manic phase and after recovery showed that the left-ear advantage as well as the shift in right-ear advantage after recovery was due to the reduction of left-ear performance. From the over-all neuropsychological findings for these patients mania may be hypothesized to be characterized by overactivation of the right hemisphere. This phaenomenon seems associated with acuteness of the symptoms of the psychotic disorder.

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Transcranial Static Magnetic Field Stimulation Over the Temporal Cortex Modulating the Right Ear Advantage in Dichotic Listening

Neuromodulation Technology at the Neural Interface ◽

10.1111/ner.13023 ◽

2019 ◽

Vol 23 (3) ◽

pp. 335-340 ◽

Cited By ~ 2

Author(s):

Kai Heimrath ◽

Alexander Spröggel ◽

Stefan Repplinger ◽

Hans‐Jochen Heinze ◽

Tino Zaehle

Keyword(s):

Magnetic Field ◽

Static Magnetic Field ◽

Dichotic Listening ◽

Temporal Cortex ◽

Field Stimulation ◽

Ear Advantage ◽

Right Ear Advantage ◽

The Right

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Dichotic Listening in Children with Serious Language Problems

Perceptual and Motor Skills ◽

10.2466/pms.1989.68.3c.1291 ◽

1989 ◽

Vol 68 (3_suppl) ◽

pp. 1291-1301 ◽

Cited By ~ 4

Author(s):

Ola Bø ◽

Kenneth Hugdahl ◽

Eivor Marklund

Keyword(s):

Dichotic Listening ◽

Finger Tapping ◽

Left Handed ◽

Language Tests ◽

Language Problems ◽

Ear Advantage ◽

Right Ear Advantage ◽

The Right ◽

Language Laterality ◽

Language Variables

20 children with serious language problems (mainly expressive) were tested with the Dichotic Listening (DL) test for language laterality. 16 were right-handed and 4 left-handed. The dichotic test consisted of series of pairwise presentations of CVC-syllables with “target-syllables” that should be detected interspersed among “distractors.” The child pointed to a sheet of paper on which a picture representing the targets (and distractors) was printed. In addition, the children were tested on several expressive and impressive language tests and on finger-tapping. Analysis showed an increased frequency of subjects with a left-ear advantage (LEA) and a reduced amplitude of the right-ear advantage (REA) for those subjects showing a right-ear advantage. Correlations with the language variables and with finger-tapping are presented and discussed.

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