scholarly journals EQUIVALENCE OF WORD TEST AND CONSONANT-VOWEL SYLLABLES TEST OF DICHOTIC LISTENING

2020 ◽  
pp. 168-186
Author(s):  
Tamara S. Muromtseva ◽  
Mariya S. Kovyazina
Keyword(s):  
Working Memory ◽  
Dichotic Listening ◽  
Hemispheric Specialization ◽  
Russian Language ◽  
Word Test ◽  
Listening Tests ◽  
Functional Orientation ◽  
Phonetic Features ◽  
Listening Task ◽  
Right Ear Advantage

Relevance. Development and improvement of methodological tools to solve scientific and practical problems is an important issue in modern neuropsychology. This study examines consonant-vowel (СV) syllable test and word test, considers their different functional orientation and shows relevance of the dichotic listening task development. For the first time in Russian neuropsychology the authors developed the dichotic listening consonant-vowel syllables test taking into account the phonetic features of the Russian language. Objective. Comparison of the equivalence of two dichotic listening tests: the word test that was first tested by B. S. Kotik and the two CV-syllable dichotic listening tests. Method. Two groups of respondents participated in the study. The first group of the participants (N = 88; M = 21.08; SD = 2.32) performed the word test and the first CV-syllable test. Participants of the second group (N = 44; M = 24.52; SD = 1.86) were presented with the word test and the second version of CV-syllable dichotic listening test. Results. The results confirmed the differences between the word test and the two CV-syllable dichotic listening tests. The differences and nonequivalence of the word test and the CV-syllable tests in laterality index (LI) and productivity coefficients (general productivity, right- and left-ear accuracy scores) are amplified as the stimulus material of CV-syllable dichotic listening is improved and modified. The increase of the load on working memory enhances right ear advantage (LI) and reduces performance with an increase in the influence of working memory on the results of dichotic listening. Conclusion. The study shows nonequivalence of the word test and the CV-syllable tests and their different functional orientation for the estimation of hemispheric specialization in audio-verbal domain.

Effects of Stimulus Material on the Dichotic Listening Performance of Aphasic Patients

1981 ◽  
Vol 24 (4) ◽  
pp. 526-534 ◽  
Author(s):  
Nancy Niccum ◽  
Alan B. Rubens ◽  
Charles Speaks
Keyword(s):  
Dichotic Listening ◽  
Nonsense Syllable ◽  
Radiographic Evidence ◽  
Word Test ◽  
Temporal System ◽  
Listening Tests ◽  
Left And Right ◽  
Low Levels ◽  
The Difference ◽  
The Right

Sixteen aphasic patients were given five different verbal dichotic listening tests. The differences among results obtained on digit test, a high-contrast word test (perception of either vocalic or consonantal information was sufficient for accurate responses), and a vowel-word test (perception of vocalic information was required for accurate responses) were not significant. However, a consonant-word test resulted in significant decreases in both left- and right-ear scores and an increase in the difference in accuracy for the two ears. A consonant-vowel nonsense-syllable test produced further dramatic reductions in performance levels, and the magnitude of difference scores between ears was limited by low levels of performanse for the majority of patients. Attempts to identify relations between patterns of performance on dichotic listening tests and radiographic evidence of lesion location were most profitable when they involved the right-ear (RE) scores on the digit test. The discontinuity in the distribution of these scores corresponded to the presence or absence of damage to the geniculo-temporal system. That is, when the geniculo-temporal system was spared, the RE scores exceeded 75% correct, whereas damage to the geniculo-temporal system was associated with RE scores of less than 50% correct.

Literacy and Hemispheric Specialization for Language: Dichotic Listening in Young Functionally Illiterate Men

1993 ◽  
Vol 77 (1) ◽  
pp. 195-199 ◽  
Author(s):  
A. Tzavaras ◽  
C. Phocas ◽  
G. Kaprinis ◽  
A. Karavatos
Keyword(s):  
Dichotic Listening ◽  
Hemispheric Specialization ◽  
Young Men ◽  
Ear Advantage ◽  
Right Ear Advantage

The functional cerebral organization of young men who were defined as illiterate was studied by testing their dichotic listening for language stimuli. These functionally illiterate men showed greater right ear advantage for language stimuli than 50 educated subjects, a pattern already observed with completely illiterate persons of both sexes. This finding is consistent with the view that mastering written codes for language might be one of the most relevant parameters in hemispheric specialization when language is studied.

Dichotic Listening in Relation to Dysphoria, Sensation Seeking, and other Personality Characteristics

1987 ◽  
Vol 64 (2) ◽  
pp. 471-477 ◽  
Author(s):  
Leo Cohen ◽  
Harald Merckelbach
Keyword(s):  
Left Hemisphere ◽  
Sensation Seeking ◽  
Dichotic Listening ◽  
Right Hemisphere ◽  
Depression Scale ◽  
Personality Measures ◽  
Dichotic Listening Task ◽  
Listening Task ◽  
Right Ear Advantage ◽  
Sensation Seeking Scale

According to a 1983 model proposed by Levy, anxiety, dysphoria, and a critical attitude are associated with greater left- than right-hemisphere activity, while optimism and uncritical evaluations correlate with stronger right- than left-hemisphere activity. A dichotic-listening task and a set of personality questionnaires were administered to 150 students in psychology. The personality measures included Dutch versions of the Beck Depression Inventory, the Zung Self-rating Depression Scale, the Sensation-seeking Scale V and a brief MMPI. Correlations between the extent of left-hemisphere reliance as measured by a right-ear advantage score on the dichotic-listening task and the various personality measures were computed, forming a test of some aspects of Levy's (1983) model. If performance on a dichotic-listening task reflects hemispheric reliance then we found little evidence, on the whole, to support Levy's model.

Dichotic Listening Performance in Young Adults Using Low-Pass Filtered Speech

2012 ◽  
Vol 23 (03) ◽  
pp. 192-205
Author(s):  
Jeffrey S. Martin ◽  
Keiko Y. Gibson ◽  
Lisa C. Huston
Keyword(s):  
Young Adults ◽  
Repeated Measures ◽  
Dichotic Listening ◽  
Cognitive Task ◽  
Task Demands ◽  
Speech Stimuli ◽  
Listening Tests ◽  
Low Pass ◽  
Right Ear Advantage ◽  
Filtered Speech

Background: Assessment of interaural asymmetry (IA) on dichotic listening tests becomes challenging when accuracy on one or both ears are at ceiling. Cognitive task demands are often increased to avoid this situation, raising the possibility that non-auditory-specific processes will further influence IA estimation. Purpose: To investigate the utility of low-pass filtered dichotic speech stimuli (dichotic filtered words [DFWs]) as a potential auditory-specific technique for increasing task difficulty in the dichotic listening paradigm. Research Design: A prospective experimental study investigating differences in IA observed for a group of young adults on three dichotic listening tasks differentiated on the basis of stimulus type (unfiltered words, DFWs) and/or mode of test administration (divided attention [DIV]; directed attention [DIR]). Study Sample: Thirty-two adults between 18 and 34 yr of age participated in the study. Data Collection and Analysis: Accuracy scores on each ear and normalized values of IA (via laterality index) served as dependent measures evaluated in a repeated-measures ANOVA design. Correlation and regression analyses were carried out to investigate potential relationships between participants’ behavioral accuracy to experimental stimuli and the magnitude of observed IA. Behavioral profiles of IA were constructed for each participant. Results: Using a traditional DIV test mode, DFW stimuli produced a significantly larger right-ear advantage (REA) as compared to unfiltered speech. The magnitude of the average REA to DFW stimuli was not statistically different between DIV and DIR test modes for the group. Inspection of individual performances, however, revealed that out of the participants who demonstrated meaningful IA during DIV, approximately half produced the same or greater amount of IA during DIR whereas half showed a relative decrease. Participants’ accuracy to left-sided stimuli was most related to the magnitude of observed IA across tasks. Conclusions: The utility of low-pass filtered speech may be helpful in the evaluation of IA obtained during dichotic testing.

scholarly journals Lateralization of Auditory Processing of Silbo Gomero

Symmetry ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1183
Author(s):  
Pamela Villar González ◽  
Onur Güntürkün ◽  
Sebastian Ocklenburg
Keyword(s):  
Language Processing ◽  
Auditory Processing ◽  
Dichotic Listening ◽  
Relative Increase ◽  
Control Group ◽  
Language Lateralization ◽  
Ear Advantage ◽  
Listening Task ◽  
Right Ear Advantage ◽  
The Right

Left-hemispheric language dominance is a well-known characteristic of the human language system. However, it has been shown that leftward language lateralization decreases dramatically when people communicate using whistles. Whistled languages present a transformation of a spoken language into whistles, facilitating communication over great distances. In order to investigate the laterality of Silbo Gomero, a form of whistled Spanish, we used a vocal and a whistled dichotic listening task in a sample of 75 healthy Spanish speakers. Both individuals that were able to whistle and to understand Silbo Gomero and a non-whistling control group showed a clear right-ear advantage for vocal dichotic listening. For whistled dichotic listening, the control group did not show any hemispheric asymmetries. In contrast, the whistlers’ group showed a right-ear advantage for whistled stimuli. This right-ear advantage was, however, smaller compared to the right-ear advantage found for vocal dichotic listening. In line with a previous study on language lateralization of whistled Turkish, these findings suggest that whistled language processing is associated with a decrease in left and a relative increase in right hemispheric processing. This shows that bihemispheric processing of whistled language stimuli occurs independent of language.

Replication of a premenstrual decrease in right-ear advantage on language-related dichotic listening tests of cerebral laterality

2002 ◽  
Vol 40 (8) ◽  
pp. 1293-1299 ◽  
Author(s):  
Gerianne M Alexander ◽  
Margaret Altemus ◽  
Bradley S Peterson ◽  
Bruce E Wexler
Keyword(s):  
Dichotic Listening ◽  
Cerebral Laterality ◽  
Listening Tests ◽  
Ear Advantage ◽  
Right Ear Advantage

Interaural Asymmetries Revealed by Dichotic Listening Tests in Normal and Dyslexic Children

2002 ◽  
Vol 13 (08) ◽  
pp. 428-437 ◽  
Author(s):  
Deborah W. Moncrieff ◽  
Frank E. Musiek
Keyword(s):  
Test Performance ◽  
Dichotic Listening ◽  
Control Group ◽  
False Alarms ◽  
Listening Test ◽  
Percent Correct ◽  
Listening Tests ◽  
Right Ear Advantage ◽  
The Right ◽  
Simple Difference

Normal and dyslexic right-handed children were assessed with three dichotic listening tests, the Dichotic Digits test, the Competing Words subtest of the SCAN, and the Dichotic Consonant-Vowel test. Performance was measured as both number and percentage of correct responses in the right and left ears. Laterality was defined as a simple difference in percentage between the two ears. Differences across the tests were revealed for all children, with the greatest differences occurring for left-ear responses. Only one dichotic listening test, Competing Words from the SCAN, produced a consistent right-ear advantage across all of the children tested. Between groups of children, differences in performance and in laterality were demonstrated. Using a criterion of poorer than 76 percent correct for the left ear, the Competing Words subtest of the SCAN identified 7 of the 10 dyslexic children as abnormal, with no false alarms in the control group.

scholarly journals Hemispheric specialization in partial epilepsy role of dichotic listening cv task and central audiological evaluation in the neuropsychological assessment

1991 ◽  
Vol 49 (4) ◽  
pp. 384-391 ◽  
Author(s):  
Mauro Muszkat ◽  
Neyde Santacchi de Vincenzo ◽  
Denilce Oliveira Reami ◽  
Clemente I. Ribeiro de Almeida ◽  
Maria I. Campos ◽  
...  
Keyword(s):  
Ct Scan ◽  
Dichotic Listening ◽  
Digit Span ◽  
Hemispheric Specialization ◽  
Partial Epilepsy ◽  
Intelligence Scale ◽  
Dichotic Listening Task ◽  
Auditory Dysfunction ◽  
Listening Task

We studied 49 patients with partial epilepsy divided into lesional cases (i.e. with lesions on CT scan) and non-lesional cases (i.e. without CT scan lesions), in relation to the Wechsler Intelligence Scale subtests (Coding, Digit span), dichotic listening CV task and Central Auditory Test (SSI, PSI). The aim of this paper was to study the hemispheric prevalence in dichotic listening task with regard to cognitive perforamance, as well as the presence or absence of central auditory dysfunction. Lesional cases presented a hemisphere prevalence in dichotic listening task with regard to cognitive performance, as well as the non-lesional cases tend to report the stimuli in the same side of EEC focus. Significant differences were found among the lesional and non lesional cases in relation to the digit span score and Coding subtest in right lesional cases versus right non-lesional cases. Both lesional and non-lesional group showed signs of central auditory dysfunction. We suggest that the dichotic listening and SSI and PSI test can be useful for a best comprehension of asymmetric neuropsychological performance in partial epilepsy.

Lateral Eye Movements during Verbal and Nonverbal Dichotic Listening

1977 ◽  
Vol 44 (3_suppl) ◽  
pp. 1115-1122 ◽  
Author(s):  
Esther Lefevre ◽  
Richard Starck ◽  
Wallace E. Lambert ◽  
Fred Genesee
Keyword(s):  
Eye Movements ◽  
Eye Movement ◽  
Dichotic Listening ◽  
Hemispheric Specialization ◽  
Cerebral Lateralization ◽  
Cerebral Laterality ◽  
Lateral Eye ◽  
Dichotic Listening Task ◽  
Listening Task ◽  
The Right

A dichotic listening paradigm was used to study the relation of eye movement to cerebral lateralization. The eye movements of right-handed subjects were recorded during verbal and nonverbal dichotic-listening tasks. Subjects given a verbal dichotic-listening task made significantly more rightward than leftward eye movements and showed more accuracy and speed in processing information presented to the right than to the left ear. Subjects given a nonverbal dichotic-listening task made significantly more leftward eye movements and processed better information presented to the left ear. These findings suggest a potentially strong link between the direction of lateral eye movement during dichotic listening tasks and left- and right-ear advantages in performance on such tasks. They also suggest that both eye movement and ear performance may be related to cerebral laterality and when examined in combination both could provide valuable information for the further study of hemispheric specialization.

Enhanced Identification of Long Versus Short Voice Onset Time Consonant–Vowel Syllables in a Dichotic Listening Task

2017 ◽  
Vol 26 (4) ◽  
pp. 555-561 ◽  
Author(s):  
Deborah Moncrieff ◽  
Lauren Dubyne
Keyword(s):  
Dichotic Listening ◽  
English Language ◽  
Voice Onset Time ◽  
Onset Time ◽  
Language Version ◽  
Percent Correct ◽  
Ear Advantage ◽  
Listening Task ◽  
Right Ear Advantage ◽  
The Right

Purpose This study investigated the influence of voice onset time (VOT) on the perception of consonant–vowel (CV) signals during a dichotic listening (DL) task. Method Sixty-two young adults with normal hearing were tested with the English language version of the Hugdahl Dichotic CV (DCV) Test. They were asked to identify 1 CV syllable during 3 DL conditions: free recall (report the syllable heard most clearly), forced right (report the syllable in the right ear), and forced left (report the syllable in the left ear). Averages for number and percent correct syllables were recorded under each condition and across the entire test. Results All subjects demonstrated an overall right-ear advantage (REA) when scores from all 3 listening conditions were averaged. The REA occurred for all VOT pairings except when the long VOT was presented to the left ear, whereas the short VOT was presented to the right ear when subjects produced an average left-ear advantage. The left-ear advantage overcame the structural advantage of the right ear even when subjects were directed to attend to the right ear. This result was consistent with findings of earlier studies done with Norwegian and Australian subjects. Conclusions Listeners' REA may be overcome by interaural temporal differences that favor processing in the listener's nondominant ear during the DCV test. Balanced VOT conditions across the DCV test prevent this effect from producing an overall bias toward the left ear, but clinical DL tests with consonant–vowel–consonant words should be examined for effects of the long VOT on laterality of performance.

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