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Volumn 29, Issue 4, 2008, Pages 267-275

Speech versus nonspeech: Different tasks, different neural organization

Author keywords

Motor learning; Nonspeech; Speech production; Task specificity

Indexed keywords

HUMANS; LEARNING; MOTOR ACTIVITY; MOUTH; POSITRON-EMISSION TOMOGRAPHY; SPEECH; SPEECH PRODUCTION MEASUREMENT; TONGUE;

EID: 59149106444     PISSN: 07340478     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-0028-1103390     Document Type: Review
Times cited : (75)

References (64)
  • 1
    • 59149088260 scopus 로고    scopus 로고
    • Rosenfeld-Johnson S. Oral-Motor Exercises for Speech Clarity. Tucson, AZ: Talk Tools; 2001
    • Rosenfeld-Johnson S. Oral-Motor Exercises for Speech Clarity. Tucson, AZ: Talk Tools; 2001
  • 3
    • 49049087899 scopus 로고    scopus 로고
    • Nationwide survey of nonspeech oral motor exercise use: Implications for evidence-based practice
    • Lof G, Watson MA. Nationwide survey of nonspeech oral motor exercise use: implications for evidence-based practice. Lang Speech Hear Serv Sch 2008;39:392-407
    • (2008) Lang Speech Hear Serv Sch , vol.39 , pp. 392-407
    • Lof, G.1    Watson, M.A.2
  • 4
    • 33746797241 scopus 로고    scopus 로고
    • Philosophy of research in motor speech disorders
    • Weismer G. Philosophy of research in motor speech disorders. Clin Linguist Phon 2006;20: 315-349
    • (2006) Clin Linguist Phon , vol.20 , pp. 315-349
    • Weismer, G.1
  • 5
    • 59149098184 scopus 로고    scopus 로고
    • Weismer G. Assessment of Oromotor, Non-speech Gestures in Speech-Language Pathology: A Critical Review. Telerounds #35 (videotape). Tucson, AZ: National Center for Neurogenic Communication Disorders, University of Arizona; 1997
    • Weismer G. Assessment of Oromotor, Non-speech Gestures in Speech-Language Pathology: A Critical Review. Telerounds #35 (videotape). Tucson, AZ: National Center for Neurogenic Communication Disorders, University of Arizona; 1997
  • 6
    • 0037267072 scopus 로고    scopus 로고
    • Speech motor control is task-specific: Evidence from dysarthria and apraxia of speech
    • Ziegler W. Speech motor control is task-specific: evidence from dysarthria and apraxia of speech. Aphasiology 2003;17:3-36
    • (2003) Aphasiology , vol.17 , pp. 3-36
    • Ziegler, W.1
  • 8
    • 0037263450 scopus 로고    scopus 로고
    • An integrative model of speech motor control: A response to Ziegler
    • Ballard K, Robin D, Folkins J. An integrative model of speech motor control: a response to Ziegler. Aphasiology 2003;17:37-48
    • (2003) Aphasiology , vol.17 , pp. 37-48
    • Ballard, K.1    Robin, D.2    Folkins, J.3
  • 10
    • 0031200496 scopus 로고    scopus 로고
    • Speech motor control: Acoustic goals, saturation effects, auditory feedback, and internal models
    • Perkell J, Matthies M, Lane H, et al. Speech motor control: acoustic goals, saturation effects, auditory feedback, and internal models. Speech Commun 1997;22:227-250
    • (1997) Speech Commun , vol.22 , pp. 227-250
    • Perkell, J.1    Matthies, M.2    Lane, H.3
  • 11
    • 0000678652 scopus 로고    scopus 로고
    • A theory of speech motor control and supporting data from speakers with normal hearing and with profound hearing loss
    • Perkell J, Guenther F, Lane H, et al. A theory of speech motor control and supporting data from speakers with normal hearing and with profound hearing loss. J Phon 2000;28:233-272
    • (2000) J Phon , vol.28 , pp. 233-272
    • Perkell, J.1    Guenther, F.2    Lane, H.3
  • 12
    • 8644260894 scopus 로고    scopus 로고
    • The uniqueness of speech among motor systems
    • Kent R. The uniqueness of speech among motor systems. Clin Linguist Phon 2004;18:495-505
    • (2004) Clin Linguist Phon , vol.18 , pp. 495-505
    • Kent, R.1
  • 13
    • 0016614485 scopus 로고
    • Lip and jaw motor control during speech: Responses to resistive loading of the jaw
    • Folkins J, Abbs J. Lip and jaw motor control during speech: responses to resistive loading of the jaw. J Speech Hear Res 1975;18:207-220
    • (1975) J Speech Hear Res , vol.18 , pp. 207-220
    • Folkins, J.1    Abbs, J.2
  • 14
    • 25044471223 scopus 로고
    • Compensatory responses to low magnitude loads applied to the lower lip during speech
    • Abbs J, Gracco V. Compensatory responses to low magnitude loads applied to the lower lip during speech. J Acoust Soc Am 1981;70(Suppl 1):S78
    • (1981) J Acoust Soc Am , vol.70 , Issue.SUPPL. 1
    • Abbs, J.1    Gracco, V.2
  • 15
    • 0021345468 scopus 로고
    • Control of complex motor gestures: Orofacial muscle responses to load perturbations of lip during speech
    • Abbs J, Gracco V. Control of complex motor gestures: orofacial muscle responses to load perturbations of lip during speech. J Neurophysiol 1984;51:705-723
    • (1984) J Neurophysiol , vol.51 , pp. 705-723
    • Abbs, J.1    Gracco, V.2
  • 16
    • 0021403692 scopus 로고
    • Mandible movements during increasingly rapid articulations of single syllables: Preliminary observations
    • Nelson W, Perkell J, Westbury J. Mandible movements during increasingly rapid articulations of single syllables: preliminary observations. J Acoust Soc Am 1984;75:945-951
    • (1984) J Acoust Soc Am , vol.75 , pp. 945-951
    • Nelson, W.1    Perkell, J.2    Westbury, J.3
  • 17
    • 0022689331 scopus 로고
    • Neuromuscular specialization of the mandibular motor system: Speech versus nonspeech movements
    • Gentil M, Gay T. Neuromuscular specialization of the mandibular motor system: speech versus nonspeech movements. Speech Commun 1986;5: 69-92
    • (1986) Speech Commun , vol.5 , pp. 69-92
    • Gentil, M.1    Gay, T.2
  • 18
    • 33746789262 scopus 로고
    • Human jaw motor control in mastication and speech
    • Requin J, Stelmach G, eds, Dordrecht, The Netherlands: Kluwer Academic;
    • Ostry D, Flanagan J, Feldman A, Munhall K. Human jaw motor control in mastication and speech. In: Requin J, Stelmach G, eds. Tutorials in Motor Neuroscience. Dordrecht, The Netherlands: Kluwer Academic; 1991:535-543
    • (1991) Tutorials in Motor Neuroscience , pp. 535-543
    • Ostry, D.1    Flanagan, J.2    Feldman, A.3    Munhall, K.4
  • 19
    • 0024238472 scopus 로고
    • Task-specific organization of activity in human jaw muscles
    • Moore C, Smith A, Ringel R. Task-specific organization of activity in human jaw muscles. J Speech Hear Res 1988;31:670-680
    • (1988) J Speech Hear Res , vol.31 , pp. 670-680
    • Moore, C.1    Smith, A.2    Ringel, R.3
  • 20
    • 0027517266 scopus 로고
    • Symmetry of mandibular muscle activity as an index of coordinative strategy
    • Moore C. Symmetry of mandibular muscle activity as an index of coordinative strategy. J Speech Hear Res 1993;36:1145-1157
    • (1993) J Speech Hear Res , vol.36 , pp. 1145-1157
    • Moore, C.1
  • 21
    • 0029828651 scopus 로고    scopus 로고
    • Does speech emerge from earlier appearing oral motor behaviors?
    • Moore C, Ruark J. Does speech emerge from earlier appearing oral motor behaviors? J Speech Hear Res 1996;39:1034-1047
    • (1996) J Speech Hear Res , vol.39 , pp. 1034-1047
    • Moore, C.1    Ruark, J.2
  • 22
    • 0027935679 scopus 로고
    • Human perioral muscle activation patterns
    • Wohlert AB, Goffman L. Human perioral muscle activation patterns. J Speech Hear Res 1994;37: 1032-1040
    • (1994) J Speech Hear Res , vol.37 , pp. 1032-1040
    • Wohlert, A.B.1    Goffman, L.2
  • 23
    • 0031440832 scopus 로고    scopus 로고
    • Coordination of lip muscle activity by 2-year-old children during speech and nonspeech tasks
    • Ruark J, Moore C. Coordination of lip muscle activity by 2-year-old children during speech and nonspeech tasks. J Speech Lang Hear Res 1997; 40:1373-1385
    • (1997) J Speech Lang Hear Res , vol.40 , pp. 1373-1385
    • Ruark, J.1    Moore, C.2
  • 24
    • 0020639787 scopus 로고
    • Control of upper airway structures during nonspeech tasks in normal and cerebral-palsied subjects: EMG findings
    • O'Dwyer N, Neilson P, Guitar B, Quinn P, Andrews G. Control of upper airway structures during nonspeech tasks in normal and cerebral-palsied subjects: EMG findings. J Speech Hear Res 1983;26:162-170
    • (1983) J Speech Hear Res , vol.26 , pp. 162-170
    • O'Dwyer, N.1    Neilson, P.2    Guitar, B.3    Quinn, P.4    Andrews, G.5
  • 25
    • 0028606193 scopus 로고
    • Levator palatini muscle activity in relation to intraoral air pressure variation
    • Kuehn DP, Moon JB. Levator palatini muscle activity in relation to intraoral air pressure variation. J Speech Hear Res 1994;37:1260-1270
    • (1994) J Speech Hear Res , vol.37 , pp. 1260-1270
    • Kuehn, D.P.1    Moon, J.B.2
  • 27
    • 0028124130 scopus 로고
    • Evaluation of a reiterant force-impulse task in the tongue
    • Bunton K, Weismer G. Evaluation of a reiterant force-impulse task in the tongue. J Speech Hear Res 1994;37:1020-1031
    • (1994) J Speech Hear Res , vol.37 , pp. 1020-1031
    • Bunton, K.1    Weismer, G.2
  • 28
    • 0023793616 scopus 로고
    • Apraxia of speech: The effectiveness of a treatment regimen
    • Dworkin JP, Abkarian GG, Johns DF. Apraxia of speech: the effectiveness of a treatment regimen. J Speech Hear Disord 1988;53:280-294
    • (1988) J Speech Hear Disord , vol.53 , pp. 280-294
    • Dworkin, J.P.1    Abkarian, G.G.2    Johns, D.F.3
  • 30
    • 0002146178 scopus 로고
    • Historical review and appraisal of research on learning, retention, and transfer of human motor skills
    • Adams JA. Historical review and appraisal of research on learning, retention, and transfer of human motor skills. Psychol Bull 1987;101:41-74
    • (1987) Psychol Bull , vol.101 , pp. 41-74
    • Adams, J.A.1
  • 31
    • 0001004310 scopus 로고
    • Effects of task complexity and task organization of the relative efficiency of part and whole training methods
    • Naylor JC, Briggs G. Effects of task complexity and task organization of the relative efficiency of part and whole training methods. J Exp Psychol 1963;65:217-224
    • (1963) J Exp Psychol , vol.65 , pp. 217-224
    • Naylor, J.C.1    Briggs, G.2
  • 32
    • 0036218294 scopus 로고    scopus 로고
    • Are oral-motor exercises useful in the treatment of phonological/articulatory disorders?
    • Forrest K. Are oral-motor exercises useful in the treatment of phonological/articulatory disorders? Semin Speech Lang 2002;23:15-25
    • (2002) Semin Speech Lang , vol.23 , pp. 15-25
    • Forrest, K.1
  • 33
    • 0022083502 scopus 로고
    • Part-task training for tracking and manual control
    • Wightman DC, Lintern G. Part-task training for tracking and manual control. Hum Factors 1985; 27:267-283
    • (1985) Hum Factors , vol.27 , pp. 267-283
    • Wightman, D.C.1    Lintern, G.2
  • 34
    • 59149083563 scopus 로고    scopus 로고
    • Peterson-Falzone S, Trost-Cardomone J, Karnell M, Hardin-Jones M. The Clinician's Guide to Treating Cleft Palate Speech. St. Louis, MO: Mosby Elsevier; 2006
    • Peterson-Falzone S, Trost-Cardomone J, Karnell M, Hardin-Jones M. The Clinician's Guide to Treating Cleft Palate Speech. St. Louis, MO: Mosby Elsevier; 2006
  • 35
    • 0028891850 scopus 로고
    • Children learn separate aspects of speech production at different rates: Evidence from spectral moments
    • Nittrouer S. Children learn separate aspects of speech production at different rates: evidence from spectral moments. J Acoust Soc Am 1995;97:520-530
    • (1995) J Acoust Soc Am , vol.97 , pp. 520-530
    • Nittrouer, S.1
  • 36
    • 38849127658 scopus 로고    scopus 로고
    • Principles of experience-dependent neural plasticity: Implications for rehabilitation after brain damage
    • Kleim. J, Jones T. Principles of experience-dependent neural plasticity: implications for rehabilitation after brain damage. J Speech Lang Hear Res 2008; 51:S225-S239
    • (2008) J Speech Lang Hear Res , vol.51
    • Kleim, J.1    Jones, T.2
  • 37
    • 38849115231 scopus 로고    scopus 로고
    • Translating principles of neural plasticity into research on speech motor control recovery and rehabilitation
    • Ludlow C, Hoit J, Kent R, et al. Translating principles of neural plasticity into research on speech motor control recovery and rehabilitation. J Speech Lang Hear Res 2008;51:S240-S258
    • (2008) J Speech Lang Hear Res , vol.51
    • Ludlow, C.1    Hoit, J.2    Kent, R.3
  • 38
    • 0036136337 scopus 로고    scopus 로고
    • Comparing cortical activation for silent and over speech using eventrelated fMRI
    • Huang J, Carr T, Cao Y. Comparing cortical activation for silent and over speech using eventrelated fMRI. Hum Brain Mapp 2002;15:39-53
    • (2002) Hum Brain Mapp , vol.15 , pp. 39-53
    • Huang, J.1    Carr, T.2    Cao, Y.3
  • 40
    • 0029802409 scopus 로고    scopus 로고
    • Functional lateralization of speech production in the primary motor cortex: A fMRI study
    • Wildgruber D, Ackermann H, Klose U, Kardatzki R, Grodd W. Functional lateralization of speech production in the primary motor cortex: a fMRI study. Neuroreport 1996;7:2791-2795
    • (1996) Neuroreport , vol.7 , pp. 2791-2795
    • Wildgruber, D.1    Ackermann, H.2    Klose, U.3    Kardatzki, R.4    Grodd, W.5
  • 41
    • 0034717644 scopus 로고    scopus 로고
    • Opposite hemispheric lateralization effects during speaking and singing at motor cortex, insula, and cerebellum
    • Riecker A, Ackermann J, Wildgruber D, Dogil G, Gross W. Opposite hemispheric lateralization effects during speaking and singing at motor cortex, insula, and cerebellum. Neuroreport 2000;11: 1997-2000
    • (2000) Neuroreport , vol.11 , pp. 1997-2000
    • Riecker, A.1    Ackermann, J.2    Wildgruber, D.3    Dogil, G.4    Gross, W.5
  • 42
    • 0026095040 scopus 로고
    • Somatotopic mapping of the primary motor cortex in humans: Activation studies with cerebral blood flow and positron emission tomography
    • Grafton S, Woods R, Mazziotta J, Phelps M. Somatotopic mapping of the primary motor cortex in humans: activation studies with cerebral blood flow and positron emission tomography. J Neurophysiol 1991;66:735-743
    • (1991) J Neurophysiol , vol.66 , pp. 735-743
    • Grafton, S.1    Woods, R.2    Mazziotta, J.3    Phelps, M.4
  • 43
    • 0142059341 scopus 로고    scopus 로고
    • Activation of Broca's area during the production of spoken and signed language: A combined cytoarchitectonic mapping and PET analysis
    • Horowitz B, Amunts K, Bhattacharyya R, et al. Activation of Broca's area during the production of spoken and signed language: a combined cytoarchitectonic mapping and PET analysis. Neuropsychologia 2003;41:1868-1876
    • (2003) Neuropsychologia , vol.41 , pp. 1868-1876
    • Horowitz, B.1    Amunts, K.2    Bhattacharyya, R.3
  • 44
    • 33745478671 scopus 로고    scopus 로고
    • Speech apraxia without oral apraxia: Can normal brain function explain the physiopathology?
    • Bonilha L, Moser D, Rorden C, Baylis G, Fridriksson J. Speech apraxia without oral apraxia: can normal brain function explain the physiopathology? Neuroreport 2006;17:1027-1031
    • (2006) Neuroreport , vol.17 , pp. 1027-1031
    • Bonilha, L.1    Moser, D.2    Rorden, C.3    Baylis, G.4    Fridriksson, J.5
  • 45
    • 0032477790 scopus 로고    scopus 로고
    • The acquisition of skilled motor performance: Fast and slow experience driven changes in primary motor cortex
    • Karni A, Meyer G, Rey-Hipolito C, et al. The acquisition of skilled motor performance: fast and slow experience driven changes in primary motor cortex. Proc Natl Acad Sci U S A 1998;95:861-868
    • (1998) Proc Natl Acad Sci U S A , vol.95 , pp. 861-868
    • Karni, A.1    Meyer, G.2    Rey-Hipolito, C.3
  • 46
    • 0036881384 scopus 로고    scopus 로고
    • Imaging brain plasticity during motor skill learning
    • Ungerleider LG, Doyon J, Karni A. Imaging brain plasticity during motor skill learning. Neurobiol Learn Mem 2002;78:553-564
    • (2002) Neurobiol Learn Mem , vol.78 , pp. 553-564
    • Ungerleider, L.G.1    Doyon, J.2    Karni, A.3
  • 48
    • 0029028097 scopus 로고
    • Modulation of muscle responses evoked by transcranial magnetic stimulation during the acquisition of new fine motor skills
    • Pascual-Leone A, Nguyet D, Cohen L, Brasil-Neto J, Cammarota A, Hallett M. Modulation of muscle responses evoked by transcranial magnetic stimulation during the acquisition of new fine motor skills. J Neurophysiol 1995;74:1037-1045
    • (1995) J Neurophysiol , vol.74 , pp. 1037-1045
    • Pascual-Leone, A.1    Nguyet, D.2    Cohen, L.3    Brasil-Neto, J.4    Cammarota, A.5    Hallett, M.6
  • 49
    • 11144296952 scopus 로고    scopus 로고
    • Motor skill training induces changes in the excitability of the leg cortical area in healthy humans
    • Perez M, Lungholt B, Nyborg K, Nielsen J. Motor skill training induces changes in the excitability of the leg cortical area in healthy humans. Exp Brain Res 2004;159:197-205
    • (2004) Exp Brain Res , vol.159 , pp. 197-205
    • Perez, M.1    Lungholt, B.2    Nyborg, K.3    Nielsen, J.4
  • 50
    • 0005649642 scopus 로고
    • Restricted motility of the speech articulators in cerebral palsy
    • Hixon TJ, Hardy JC. Restricted motility of the speech articulators in cerebral palsy. J Speech Hear Disord 1964;29:293-306
    • (1964) J Speech Hear Disord , vol.29 , pp. 293-306
    • Hixon, T.J.1    Hardy, J.C.2
  • 51
    • 0342412228 scopus 로고
    • Oral movement abilities and articulatory characteristics of brain-injured adults
    • La Pointe LL, Wertz R. Oral movement abilities and articulatory characteristics of brain-injured adults. Percept Mot Skills 1974;39:39-46
    • (1974) Percept Mot Skills , vol.39 , pp. 39-46
    • La Pointe, L.L.1    Wertz, R.2
  • 52
    • 0019167831 scopus 로고
    • Tongue force in normals and in dysarthric patients with amyotrophic lateral sclerosis
    • Dworkin J, Aronson A, Mulder D. Tongue force in normals and in dysarthric patients with amyotrophic lateral sclerosis. J Speech Hear Res 1980;23:829-837
    • (1980) J Speech Hear Res , vol.23 , pp. 829-837
    • Dworkin, J.1    Aronson, A.2    Mulder, D.3
  • 53
    • 0021353161 scopus 로고
    • Orofacial fine force control impairments in congenital spasticity: Evidence again hypertonus-related performance deficits
    • Barlow S, Abbs J. Orofacial fine force control impairments in congenital spasticity: evidence again hypertonus-related performance deficits. Neurology 1984;34:145-150
    • (1984) Neurology , vol.34 , pp. 145-150
    • Barlow, S.1    Abbs, J.2
  • 54
    • 0022916567 scopus 로고
    • Fine force and position control of select orofacial structures in the upper motor neuron syndrome
    • Barlow S, Abbs J. Fine force and position control of select orofacial structures in the upper motor neuron syndrome. Exp Neurol 1986;94:699-713
    • (1986) Exp Neurol , vol.94 , pp. 699-713
    • Barlow, S.1    Abbs, J.2
  • 55
    • 0022706216 scopus 로고
    • Tongue strength and alternate motion rates in normal and dysarthric subjects
    • Dworkin J, Aronson A. Tongue strength and alternate motion rates in normal and dysarthric subjects. J Commun Disord 1986;19:115-132
    • (1986) J Commun Disord , vol.19 , pp. 115-132
    • Dworkin, J.1    Aronson, A.2
  • 56
    • 0027362612 scopus 로고
    • Multiple orofacial indices in amyotrophic lateral sclerosis
    • DePaul R, Brooks B. Multiple orofacial indices in amyotrophic lateral sclerosis. J Speech Hear Res 1993;36:1158-1167
    • (1993) J Speech Hear Res , vol.36 , pp. 1158-1167
    • DePaul, R.1    Brooks, B.2
  • 57
    • 0028047754 scopus 로고
    • Physiologic deficits in the orofacial system underlying dysarthria in amyotrophic lateral sclerosis
    • Langmore S, Lehman M. Physiologic deficits in the orofacial system underlying dysarthria in amyotrophic lateral sclerosis. J Speech Hear Res 1994;37: 28-37
    • (1994) J Speech Hear Res , vol.37 , pp. 28-37
    • Langmore, S.1    Lehman, M.2
  • 58
    • 0028558404 scopus 로고
    • Intelligibility and nonspeech orofacial strength and force control following traumatic brain injury
    • McHenry MA, Minton JT, Wilson RL, Post YV. Intelligibility and nonspeech orofacial strength and force control following traumatic brain injury. J Speech Hear Res 1994;37:1271-1283
    • (1994) J Speech Hear Res , vol.37 , pp. 1271-1283
    • McHenry, M.A.1    Minton, J.T.2    Wilson, R.L.3    Post, Y.V.4
  • 61
    • 84937290356 scopus 로고
    • Tongue function in upper motor neuron type dysarthria following cerebrovascular accident
    • Thompson E, Murdoch B, Stokes P. Tongue function in upper motor neuron type dysarthria following cerebrovascular accident. J Med Speech-Lang Pathol 1995;3:27-40
    • (1995) J Med Speech-Lang Pathol , vol.3 , pp. 27-40
    • Thompson, E.1    Murdoch, B.2    Stokes, P.3
  • 62
    • 84986641926 scopus 로고
    • Lip function in subjects with upper motor neuron type dysarthria following cerebrovascular accidents
    • Thompson E, Murdoch B, Stokes P. Lip function in subjects with upper motor neuron type dysarthria following cerebrovascular accidents. Eur J Disord Commun 1995;30:451-466
    • (1995) Eur J Disord Commun , vol.30 , pp. 451-466
    • Thompson, E.1    Murdoch, B.2    Stokes, P.3
  • 63
    • 0028965236 scopus 로고
    • A physiological analysis of articulatory dysfunction in dysarthric speakers following severe dosed-head injury
    • Theodoros D, Murdoch B, Stokes P. A physiological analysis of articulatory dysfunction in dysarthric speakers following severe dosed-head injury. Brain Inj 1995;9:237-254
    • (1995) Brain Inj , vol.9 , pp. 237-254
    • Theodoros, D.1    Murdoch, B.2    Stokes, P.3
  • 64
    • 0034133011 scopus 로고    scopus 로고
    • Strength, endurance, and stability of the tongue and hand in Parkinson disease
    • Solomon N, Robin D, Luschei E. Strength, endurance, and stability of the tongue and hand in Parkinson disease. J Speech Lang Hear Res 2000; 43:256-267
    • (2000) J Speech Lang Hear Res , vol.43 , pp. 256-267
    • Solomon, N.1    Robin, D.2    Luschei, E.3


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