Dichotic CV recognition at various interaural temporal onset asynchronies: Effect of age

Gelfand, Stanley A.; Hoffman, Sidney; Waltzman, Susan B.; Piper, Neil

doi:10.1121/1.385117

Cited by 22 publications

(18 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The presence of a signifi cant difference in HINT scores between N90 and N270, with better scores when the noise came from the left speaker in each group, is consistent with the previous fi ndings that aging causes progressive decline in the central processing of speech, and that this decline is greater for the left ear (right hemisphere) than the right ear (left hemisphere) input [Gelfand et al, 1980;Jerger et al, 1994;Alden et al, 1997;Greenwald and Jerger, 2001]. …”

Section: Hearing In Noise Testsupporting

confidence: 76%

Loss of Peripheral Right-Ear Advantage in Age-Related Hearing Loss

et al. 2004

View full text Add to dashboard Cite

In young adults with normal hearing, the right ear is more sensitive than the left to simple sounds (peripheral right-ear advantage) and to processing complex sounds such as speech (central right-ear advantage). In the present investigation, the effects of hearing loss and aging on this auditory asymmetry were examined at both peripheral and central levels. Audiograms and transient evoked otoacoustic emission (TEOAE) and distortion product otoacoustic emission amplitudes were used to assess cochlear function. The contralateral suppression of TEOAEs was measured to assess the medial olivocochlear efferent system. The Hearing in Noise Test (HINT; binaural speech) was conducted to assess higher central auditory function. A group of aged subjects with normal hearing (flat audiograms) were compared to a group of aged subjects with sloping audiograms (presbycusis). At the cochlear (peripheral) level, the normal hearing group showed significantly higher otoacoustic emission amplitudes for the right ear compared to the left ear, which is consistent with the right-ear dominance normally seen in young adults. However, this finding was reversed in the presbycusic group that showed higher left-ear emission amplitudes. At the brainstem level, the amplitudes of TEOAE contralateral suppression were small and no significant difference was found between the right and left ears in both groups. On the contrary, HINT results showed a continuous dominance of the right ear (left hemisphere) in both groups, which was consistent with previous reports showing that the right hemisphere is more affected by age than the left hemisphere.

show abstract

Section: Hearing In Noise Testsupporting

confidence: 76%

Loss of Peripheral Right-Ear Advantage in Age-Related Hearing Loss

et al. 2004

View full text Add to dashboard Cite

show abstract

“…In particular, perception of left-ear targets of dichotic sentences deteriorates with age relative to perception of right-ear targets (Jerger, Stach, Johnson, Loiselle & Jerger, 1990, Jerger & Jordan, 1992, even in individuals with little or no change in their hearing sensitivity over a period of several years (Stach, Jerger & Fleming, 1985). In contrast, the right-ear advantage for brief, dichotically presented nonsense syllables, digits, or spondees does not appear to change (Gelfand, Hoffman, Waltzman & Piper, 1980, Martini, Bovo, Agnoletto, Da Col, Drusian, Liddeo & Morra, 1988. These reports suggest that a right-ear advantage increases both for peripheral hearing sensitivity and for speech tasks that rely on centrally mediated processes.…”

Section: Iintroductionmentioning

confidence: 50%

Decline of speech understanding and auditory thresholds in the elderly

Divenyi

Stark

Haupt

2005

The Journal of the Acoustical Society of America

101

View full text Add to dashboard Cite

A group of 29 elderly subjects between 60.0 and 83.7 years of age at the beginning of the study, and whose hearing loss was not greater than moderate, was tested twice, an average of 5.27 years apart. The tests measured pure-tone thresholds, word recognition in quiet, and a set of tests of understanding speech with various types of distortion (low-pass filtering, time compression) or interference (single speaker, babble noise, reverberation). Performance declined consistently and significantly between the two testing phases. In addition, the variability of speech understanding measures increased significantly between testing phases, though the variability of audiometric measurements did not. A right-ear superiority was observed but this lateral asymmetry did not increase between testing phases. Using a group of young subjects with normal hearing to establish a baseline, we found that the decline of speech understanding measures accelerated significantly relative to the decline in audiometric measures in the seventh to ninth decades of life. On the assumption that speech understanding depends linearly on age and audiometric variables, there is evidence that this linear relationship changes with age, suggesting that not only the accuracy but also the nature of speech understanding evolves as we mature.

show abstract

“…Also, an age-related increase of ear asymmetry has been reported: performance of the LE has been found to decrease stronger than performance of the RE (Jerger, Alford, Lew, Rivera, & Chmiel, 1995;Jerger, Chmiel, Allen, & Wilson, 1994;Strouse et al, 2000a;Strouse, Wilson, & Brush, 2000b). However, this finding is still controversial since some aging studies have failed to find such an effect (Gelfand et al, 1980;Martini et al, 1988) or found that age effects could only be perceived in focussed attention conditions, in particular when attention had to be focussed at the LE (Alden et al, 1997;Bouma & Van der Endt, 1993;Hallgren et al, 2001). Findings of decreased LE performance in elderly suggest that aging differentially affects functional hemispheric asymmetry.…”

mentioning

confidence: 89%

“…Indeed, research has demonstrated that the DLT performance of elderly is decreased compared to younger participants (Alden, Harrison, Snyder, & Everhart, 1997;Bouma & Van der Endt, 1993;Gelfand, Hoffman, Waltzman, & Piper, 1980;Hallgren, Larsby, Lyxell, & Arlinger, 2001;Martin & Cranford, 1991;Strouse, Wilson, & Brush, 2000a). Also, an age-related increase of ear asymmetry has been reported: performance of the LE has been found to decrease stronger than performance of the RE (Jerger, Alford, Lew, Rivera, & Chmiel, 1995;Jerger, Chmiel, Allen, & Wilson, 1994;Strouse et al, 2000a;Strouse, Wilson, & Brush, 2000b).…”

mentioning

confidence: 99%

Age Effects in Identifying and Localising Dichotic Stimuli: A Corpus Callosum Deficit

Gootjes

Strien

Bouma

2004

Journal of Clinical and Experimental Neuropsychology

View full text Add to dashboard Cite

In the present study, dichotic listening performance of 31 older adults was compared with performance of 25 younger adults under free and focussed attention conditions. In addition to an age-related general decrease in performance, we observed in the focussed attention condition increased asymmetry in the elderly group: the decrease of recall performance was stronger for the left ear (LE) than for the right ear (RE), while the increase of localisation errors was greater for the RE than for the LE. Identifying and localising digits appear to be different processes mediated predominantly by the left and right hemisphere, respectively. Since agerelated reduced performance is strongest for the ear ipsilateral to the hemisphere dominant to that particular function, these findings may be ascribed to decline of corpus callosum functioning resulting in decreased interhemispheric interaction rather than to a selective decline of right hemisphere functions.Age-related decline in cognitive functioning in healthy older adults appears to be restricted to tasks that demand more effortful processing. On tasks demanding automatic processing, elderly adults perform similarly to younger adults. Agerelated decline most probably is a consequence of deficits in selective attention needed during effortful processing (Kinsbourne, 1980). In the present research, we studied age differences in dichotic listening performance. The dichotic listening test (DLT) is an excellent tool for examining age-related cognitive decline since it involves different degrees of attentional and memory processing.The DLT is a non-invasive procedure to study the lateralisation of cerebral functions. Kimura (1961) developed the standard DLT, in which pairs of spoken digits are presented through a headphone. In each trial, three digits are sequentially presented to the left ear (LE), while at the same time three other digits are sequentially presented to the right ear (RE). The participants are asked to report as many digits as possible after each trial. Kimura (1967) found that verbal stimuli presented to the RE are reported more accurately than verbal stimuli presented to the LE.According to the structural model proposed by Kimura (1967), this right-ear advantage (REA) is a consequence of the functional anatomical organisation of the central-auditory system and the cerebral representation of language functions. Although auditory information is processed in the

show abstract

Dichotic CV recognition at various interaural temporal onset asynchronies: Effect of age

Cited by 22 publications

References 14 publications

Loss of Peripheral Right-Ear Advantage in Age-Related Hearing Loss

Loss of Peripheral Right-Ear Advantage in Age-Related Hearing Loss

Decline of speech understanding and auditory thresholds in the elderly

Age Effects in Identifying and Localising Dichotic Stimuli: A Corpus Callosum Deficit

Contact Info

Product

Resources

About