This study examined younger (n = 16) and older (n = 16) listeners' processing of dysarthric speech—a naturally occurring form of signal degradation. It aimed to determine how age, hearing acuity, memory, and vocabulary knowledge interacted in speech recognition and lexical segmentation. Listener transcripts were coded for accuracy and pattern of lexical boundary errors. For younger listeners, transcription accuracy was predicted by receptive vocabulary. For older listeners, this same effect existed but was moderated by pure-tone hearing thresholds. While both groups employed syllabic stress cues to inform lexical segmentation, older listeners were less reliant on this perceptual strategy. The results were interpreted to suggest that individuals with larger receptive vocabularies, with their presumed greater language familiarity, were better able to leverage cue redundancies within the speech signal to form lexical hypothesis—leading to an improved ability to comprehend dysarthric speech. This advantage was minimized as hearing thresholds increased. While the differing levels of reliance on stress cues across the listener groups could not be attributed to specific individual differences, it was hypothesized that some combination of larger vocabularies and reduced hearing thresholds in the older participant group led to them prioritize lexical cues as a segmentation frame.
REFERENCES
1.
Alamsaputra
, D. M.
, Kohnert
, K. J.
, Munson
, B.
, and Reichle
, J.
(2006
). “Synthesized speech intelligibility among native speakers and non-native speakers of English
,” Augmentative Alternative Commun.
22
, 258
–268
.2.
Ángeles Serrano
, M.
, Flammini
, A.
, and Menczer
, F.
(2009
). “Modeling statistical properties of written text
,” PLoS ONE
4
, 1
–8
.3.
Baayen
, R. H.
, Davidson
, D. J.
, and Bates
, D. M.
(2008
). “Mixed-effects modeling with crossed random effects for subjects and items
,” J. Mem. Lang.
59
, 390
–412
.4.
Baayen
, R. H.
, Piepenbrock
, R.
, and Gulikers
, L.
(1996
). CELEX2
[cd-rom] (Linguistic Data Consortium
, Philadelphia, PA
).5.
Baum
, S. R.
(2003
). “Age differences in the influence of metrical structure on phonetic identification
,” Speech Commun.
39
, 231
–242
.6.
Benichov
, J.
, Cox
, L. C.
, Tun
, P. A.
, and Wingfield
, A.
(2012
). “Word recognition within a linguistic context: Effects of age, hearing acuity, verbal ability, and cognitive function
,” Ear Hear.
33
, 250
–256
.7.
Boersma
, P.
, and Weenink
, D.
(2009
). “Praat: doing phonetics by computer,” Ver. 5.1.05, http://www.praat.org/ (Last viewed 17 August 2012).8.
Borrie
, S. A.
, McAuliffe
, M. J.
, Liss
, J. M.
, Kirk
, C.
, O'Beirne
, G.
, and Anderson
, T.
(2012
). “Familiarization conditions and the mechanisms that underlie improved recognition of dysarthric speech
,” Lang. Cogn. Processes
27
, 1039
–1055
.9.
Choe
, Y.-K.
, Liss
, J. M.
, Azuma
, T.
, and Mathy
, P.
(2012
). “Evidence of cue use and performance differences in deciphering dysarthric speech
,” J. Acoust. Soc. Am.
131
, EL112
–EL118
.10.
Committee on Hearing and Bioacoustics and Biomechanics (CHABA)
(1988
). “Speech understanding and aging
,” J. Acoust. Soc. Am.
83
, 859
–895
.11.
Cooke
, M.
(2006
). “A glimpsing model of speech perception in noise
,” J. Acoust. Soc. Am.
119
, 1562
–1573
.12.
Cooke
, M.
, Garcia Lecumberri
, M. L.
, and Barker
, J.
(2008
). “The foreign language cocktail party problem: Energetic and informational masking effects in non-native speech perception
,” J. Acoust. Soc. Am.
123
, 414
–427
.13.
Cutler
, A.
, and Butterfield
, S.
(1992
). “Rhythmic cues to speech segmentation: Evidence from juncture misperception
,” J. Mem. Language
31
, 218
–236
.14.
Cutler
, A.
, and Norris
, D.
(1988
). “The role of strong syllables in segmentation for lexical access
,” J. Exp. Psychol.
14
, 113
–121
.15.
Darley
, F. L.
, Aronson
, A. E.
, and Brown
, J. R.
(1969
). “Differential diagnostic patterns of dysarthria
,” J. Speech Hear. Res.
12
, 246
–269
.16.
de Lau
, L. M. L.
, and Breteler
, M. M. B.
(2006
). “Epidemiology of Parkinson's disease
,” Lancet Neurol.
5
, 525
–535
.17.
Dubno
, J. R.
, Ahlstrom
, J. B.
, and Horwitz
, A. R.
(2000
). “Use of context by young and aged adults with normal hearing
,” J. Acoust. Soc. Am.
107
, 538
–546
.18.
Duffy
, J. R.
(2005
). Motor Speech Disorders: Substrates, Differential Diagnosis, and Management
, 2nd ed. (Elsevier Mosby
, St. Louis, MS
), 578
pp.19.
Dunn
, L. M.
, and Dunn
, D. M.
(2007
). Peabody Picture Vocabulary Test
, 4th ed. (Pearson Education Incorporated
, San Antonio, TX
), 209
pp.20.
Fromont
, R.
, and Hay
, J. B.
(2008
). “ONZE Miner: The development of a browser-based research tool
,” Corpora
3
, 173
–193
.21.
Gordon-Salant
, S.
, Yeni-Komshian
, G. H.
, Fitzgibbons
, P. J.
, and Barrett
, J.
(2006
). “Age-related differences in identification and discrimination of temporal cues in speech segments
,” J. Acoust. Soc. Am.
119
, 2455
–2466
.22.
Grabe
, E.
, and Low
, E. L.
(2002
). Durational variability in speech and the rhythm class hypothesis, in Laboratory phonology
, edited by C.
Gussenhoven
and N.
Warner
(Mouton de Gruyter
, Ossining, NY
), Vol. 7
, pp. 515
–546
.23.
Hartelius
, L.
, and Svensson
, P.
(1994
). “Speech and swallowing symptoms associated with Parkinson's disease and multiple sclerosis: A survey
,” Folia Phoniatr. Logopaedica
46
, 9
–17
.24.
Heaps
, H. S.
(1978
). Information Retrieval: Computational and Theoretical Aspects
(Academic Press
, Orlando, FL
) 344
pp.25.
Janse
, E.
, and Adank
, P.
(2012
). “Predicting foreign-accent adaptation in older adults
,” Quart. J. Exp. Psychol.
65
, 1563
–1585
.26.
Jarvis
, B. G.
(2010
). “DirectRT,” Ver. 2010.3.109 [computer software] (Empirisoft Corporation, New York, NY).27.
Johnson
, J. A.
, and Pring
, T. R.
(1990
). “Speech therapy and Parkinson's disease: A review and further data
,” Br. J. Disord. Commun.
25
, 183
–194
.28.
Jusczyk
, P. W.
, and Luce
, P. A.
(2002
). “Speech perception and spoken word recognition: Past and present
,” Ear Hear.
23
, 2
–40
.29.
Kidd
, G. R.
, and Humes
, L. E.
(2012
). “Effects of age and hearing loss on the recognition of interrupted words in isolation and in sentences
,” J. Acoust. Soc. Am.
131
, 1434
–1448
.30.
Lansford
, K. L.
, Liss
, J. M.
, Caviness
, J. N.
, and Utianski
, R. L.
(2011
). “A cognitive-perceptual approach to conceptualizing speech intelligibility deficits and remediation practice in hypokinetic dysarthria
,” Parkinson's Disease
2011
(150962
).31.
Liss
, J. M.
(2007
). “The role of speech perception in motor speech disorders
,” in Motor Speech Disorders: Essays for Ray Kent
, edited by G.
Weismer
(Plural
, San Diego, CA
), pp. 195
–231
.32.
Liss
, J. M.
, Spitzer
, S.
, Caviness
, J. N.
, Adler
, C.
, and Edwards
, B.
(1998
). “Syllabic strength and lexical boundary decisions in the perception of hypokinetic dysarthric speech
,” J. Acoust. Soc. Am.
104
, 2457
–2466
.33.
Mattys
, S. L.
, Brooks
, J.
, and Cooke
, M.
(2009
). “Recognizing speech under a processing load: Dissociating energetic from informational factors
,” Cognit. Psychol.
59
, 203
–243
.34.
Mattys
, S. L.
, and Liss
, J. M.
(2008
). “On building models of spoken-word recognition: When there is as much to learn from natural “oddities” as artificial normality
,” Percept. Psychophys.
70
, 1235
–1242
.35.
Mattys
, S. L.
, White
, L.
, and Melhorn
, J. F.
(2005
). “Integration of multiple speech segmentation cues: A hierarchical framework
,” J. Exp. Psychol.
134
, 477
–500
.36.
McAuliffe
, M. J.
, Wilding
, P. J.
, Rickard
, N. A.
, and O'Beirne
, G. A.
(2012
). “Effect of speaker age on speech recognition and perceived listening effort in older adults with hearing loss
,” J. Speech Language Hear. Res.
55
, 838
–847
.37.
Munson
, B.
(2001
). “Relationships between vocabulary size and spoken word recognition in children aged 3 to 7
,” Contemp. Issues Commun. Sci. Disord.
28
, 20
–29
.38.
Nasreddine
, Z. S.
, Phillips
, N. A.
, Bédirian
, V.
, Charbonneau
, S.
, Whitehead
, V.
, Collin
, I.
, Cummings
, J. L.
, and Chertkow
, H.
(2005
). “The Montreal Cognitive Assessment (MoCA©): A brief screening tool for mild cognitive impairment
,” J. Am. Geriatric Soc.
53
, 695
–699
.39.
Pichora-Fuller
, M. K.
(2008
). “Use of supportive context by younger and older adult listeners: Balancing bottom-up and top-down information processing
,” Int. J. Audiol.
47
, S72
–S82
.40.
Pichora-Fuller
, M. K.
, Schneider
, B. A.
, and Daneman
, M.
(1995
). “How young and old adults listen to and remember speech in noise
,” J. Acoust. Soc. Am.
97
, 593
–608
.41.
Schvartz
, K. C.
, Chatterjee
, M.
, and Gordon-Salant
, S.
(2008
). “Recognition of spectrally degraded phonemes by younger, middle-aged, and older normal-hearing listeners
,” J. Acoust. Soc. Am.
124
, 3972
–3988
.42.
Sheldon
, S.
, Pichora-Fuller
, M. K.
, and Schneider
, B. A.
(2008
). “Priming and sentence context support listening to noise-vocoded speech by younger and older adults
,” J. Acoust. Soc. Am.
123
, 489
–499
.43.
Sommers
, M. S.
, and Danielson
, S. M.
(1999
). “Inhibitory processes and spoken word recognition in young and older adults: The interaction of lexical competition and semantic context
,” Psychol. Aging
14
, 458
–472
.44.
Souza
, P. E.
(2000
). “Older listeners' use of temporal cues altered by compression amplification
,” J. Speech Lang. Hear. Res.
43
, 661
–674
.45.
Spitzer
, S. M.
, Liss
, J. M.
, and Mattys
, S. L.
(2007
). “Acoustic cues to lexical segmentation: A study of resynthesised speech
,” J. Acoust. Soc. Am.
122
, 3678
–3687
.46.
Taler
, V.
, Aaron
, G. P.
, Steinmetz
, L. G.
, and Pisoni
, D. B.
(2010
). “Lexical neighborhood density effects on spoken word recognition and production in healthy aging
,” J. Gerontol. Ser. B
65
, 551
–560
.47.
Vaughan
, N. E.
, and Letowski
, T.
(1997
). “Effects of age, speech rate, and type of test on temporal auditory processing
,” J. Speech Lang. Hear. Res.
40
, 1192
–1200
.48.
Wechsler
, D.
(1997
). Wechsler Memory Scale
, 3rd ed. (Psychological Corporation
, San Antonio, TX
), 350
pp.49.
Weiss
, D. J.
, Gerfen
, C.
, and Mitchel
, A. D.
(2010
). “Colliding cues in word segmentation: The role of cue strength and general cognitive processes
,” Lang. Cogn. Process.
25
, 402
–422
.50.
Wingfield
, A.
, Peelle
, J. E.
, and Grossman
, M.
(2003
). “Speech rate and syntactic complexity as multiplicative factors in speech comprehension by young and older adults
,” Aging Neuropsychol. Cogn.
10
, 310
–322
.51.
Wingfield
, A.
, Tun
, P. A.
, and McCoy
, S. L.
(2005
). “Hearing loss in older adulthood: What it is and how it interacts with cognitive performance
,” Curr. Directions Psychol. Sci.
14
, 144
–148
.52.
Wingfield
, A.
, Wayland
, S. C.
, and Stine
, E. A.
(1992
). “Adult age differences in the use of prosody for syntactic parsing and recall of spoken sentences
,” J. Gerontol.
47
, P350
–356
.53.
Yorkston
, K. M.
, Beukelman
, D. R.
, and Hakel
, M.
(1996
). “Sentence intelligibility test for Windows,” [cd-rom] (Communication Disorders Software, Lincoln, NE).54.
Young
, S.
, Evermann
, G.
, Hain
, T.
, Kershaw
, D.
, Moore
, G.
, Odell
, J.
, Ollason
, D.
, Povey
, D.
, Valtchev
, V.
, and Woodland
, P.
(2002
). The HTK Book: Revised for HTK
, Ver. 3.2 (Cambridge University Press
, Cambridge, U.K.
) 277
pp.© 2013 Acoustical Society of America.
2013
Acoustical Society of America
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