Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Possibilities in Neurogenic Stuttering Treatment An empirical study on therapists` experiences Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de „Stuttering is more than a riddle. It is at least a complicated, multidimensioned jigsaw puzzle, with many pieces still missing” (Van Riper, 1982, 1). „Certain images and/or photos on this page are the copyrighted property property of 123RF Limited, their Contributors or Licensed Partners and are being used with permission under license. These images and/or photos may not not be copied or downloaded without permission from 123RF Limited.“ Limited.“cc Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Presentation agenda 1. Definition and etiology 2. State of research in literature 3. Research questions 4. Empirical study and methodology 5. Findings 6. Conclusion Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Presentation agenda 1. Definition and etiology 2. State of research in literature 3. Research questions 4. Empirical study and methodology 5. Findings 6. Conclusion Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Definition Speech dysfluencies in the form of repetitions, prolongations and/or blocks Direct correlation between the neurological disturbance and the onset of speech dysfluencies Diagnosis of a neurological disturbance or underlying disease Neurogenic Stuttering Possible onset at any age Occurence of symptoms for the first time in life or massive change or aggravation of existing stuttering pattern According to: Van Borsel et al. (1997) Grant et al. (1999), Leder (1996), Helm-Estabrooks (1986) Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Etiology ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ Cerebrovascular disease Head trauma/ traumatic brain injury Neurodegenerative disease Tumor Epilepsy Intoxication Neurosurgery Other diseases of the central nervous system Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Presentation agenda 1. Definition and etiology 2. State of research in literature 3. Research questions 4. Empirical study and methodology 5. Findings 6. Conclusion Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de State of research „Acquired stuttering in adults has received little attention relative to that given developmental stuttering“ (Marshall & Starch, 1984, 87). „Extensive research has been conducted in the field of developmental stuttering, and many facts about this disorder are well documented in the developmental stuttering literature. An equivalent body of knowledge is not available in the area of neurogenic stuttering [...]“ (Ringo & Dietrich, 1995, 117f.). Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de State of research ▪ Limited number of publications ▪ Single case studies ▪ Lack of empirical (group) studies Critique: ▪ lack of objectivity of studies ▪ lack of comparability of data ▪ inaccurate sampling procedure Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de State of research ▪ Increased demand for research in the area of neurogenic stuttering treatment ▪ Highly discrepant hypothesis „Our therapy experience with adults with neurogenic stuttering has been very encouraging. [...] in a good many cases we have seen the stuttering problem completely eradicated” (Canter, 1971,143). „Results have rarely been dramatic and not always encouraging“ (Rosenbek, 1984, zit. n. Baumgartner & Duffy, 1997, 91). „The call for more systematically collected data is long overdue“ (Curlee, 1995, 125). Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Presentation agenda 1. Definition and etiology 2. State of research in literature 3. Research questions 4. Empirical study and methodology 5. Findings 6. Conclusion Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Research questions ▪ How is neurogenic stuttering currently treated in Germany? ▪ Is neurogenic stuttering treatable? ▪ Which factors evoke a good prognosis? Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Presentation agenda 1. Definition and etiology 2. State of research in literature 3. Research questions 4. Empirical study and methodology 5. Findings 6. Conclusion Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Empirical study and methodology § Research method: § Sampling procedure: Written survey of 700 speech language pathologists in Germany Random sample Two-stage sampling procedure: Stage 1: Therapists (cluster) Stage 2: Clients § Research tool: § Period of examination: Structured questionnaire (30 questions: 178 items) 4 years (1.08.2004 – 1.08.2008) Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Questionnaire – subject matters Demographic data Age, gender, handedness Symptoms Core symptoms, secondary behaviors etc. Etiology Medical history, neurological disturbance etc. Therapy targets Individual aims Type of treatment Stuttering therapy, general speech therapy etc. Focus of treatment Fluency shaping or modification techniques Response to treatment Learning, adopting and transferring techniques Treatment outcome Improvement, aggravation, difficulties etc. Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Pretest Two stage Pretesting (Prüfer & Rexroth, 2000) Phase 1: cognitive pretest § Cognitive interviews § n = 7 therapists different occupational groups different therapy setting Phase 2: field pretest (pilotstudy) § Written survey § n = 100 therapists § Split-ballot procedure assure manageability of the questionnaire and correct understanding of questions avoid ambiguity Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Data collection Contacting the non-responders by phone Information letter on the upcoming survey Pre-information Questionnaire Follow-up added by: ▪ correspondence letter ▪ letter of recommendation from the faculty ▪ stamped self-addressed envelope Data analysis Data collection and data preraration with SPSS 17.0 Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Return rate Return rate (n = 700) 66,0% 53,3% 34,0% 12,7% Response No Response Neurogenic stuttering clients among the clientele No neurogenic stuttering clients among the clientele 89 therapists (12,7%) have treated one or more clients with neurogenic stuttering 68 case descriptions (9,7%) after plausibility check: 61 data sets (8,7 %) Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Presentation agenda 1. Definition and etiology 2. State of research in literature 3. Research questions 4. Empirical study and methodology 5. Findings 6. Conclusion Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – age Bar chart – age (n = 52) range: 8-87 years mean: 55.4 years n standard deviation: 17. 4 years. age (years) Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – accompanying speech problems Accompanying speech disorders (n = 60) 21,7% 20,0% 3,3% 51,7% 30,0% 21,7% 24,6% Aphasia solely or in combination with other speech problems No accompanying speech problems Apraxia of speech Dysarthria Other speech problems Aphasia (solely) Aphasia and other speech problems In three fourths of all cases neurogenic stuttering clients showed accompanying speech disorders. In every second case the client had aphasia. Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – secondary behaviors Secondary behaviors (n = 61) 80% 60% 40% 20% 70,5% 60,7% 47,5% 47,5% 32,8% 27,9% 13,3% 0% Irritation Difficulties in handling communication situations Linguistic avoidance behavior Situational avoidance behavior Accessory movements Anxiety Others 95.1% of all patients showed secondary behaviors Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – Chosen type of treatment Type of treatment (n = 61) 100% 80% 60% 40% 20% 0% 90,2% 59,0% 52,5% 49,2% Huge variety of different types of treatment 45,9% 18,0% 4,9% Specific stuttering therapy Breathing exercises Motor speech therapy/facial exercises Aphasia therapy/word finding exercises Relaxation techniques Other types of treatment Medical treatment Average: use of 3.21 types of treatment (sd = 1.07) Specific stuttering therapy as the most used type of treatment Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – Specific stuttering therapy Type of stuttering treatment (n = 54) Stuttering modification n Fluency Shaping n Speech devices n Easy onset 30 Slowing speech rate 37 Metronome 11 Easy syllable repetitions 21 Rhythmical speech 37 Chorus speaking 9 Easy articulatory contacts 15 Continous phonation 5 Shadowing 7 Cancellation 14 Prolonged speech 5 Pacing Board 5 Use of starting sounds 9 Biofeedback 1 Pull-out 8 Delayed auditory feedback 1 Other modification techniques 2 Other speech devices 3 Other fluency shaping techniques 3 Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – Core techniques Focus of stuttering therapy (n = 42) Stuttering modfication Cancellation 2 Easy onset 9 2 Use of starting sounds Easy syllable repetitions 1 Other modification technique 1 Speech Othersdevices Fluency Shaping Rhythmical speech 10 11 Slowing speech rate Continous speech 1 Prolonged speech 1 Metronom 1 Pacing Board 1 2 0 2 4 6 8 10 12 Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – Psycho-social methods Psycho-social methods (n = 56) Information on stuttering 90,9% Anxiety reduction 70,4% Counseling of relatives 58,2% In-vivo training Other psycho-social methods 55,4% 14,0% 0% 20% 40% 60% 80% 100 % 94,9% of all therapists used psycho-social methods Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – „Success“ of treatment C R I T E R I A O F S U C C E S S Achievment of therapy target Improvement of speech (improvement of body functioning) Improvement of psycho-social factors (activity and participation, positive affect on context factors) Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – Achievement of therapy target ) en t ir el y (3 ly de y (4 ) ) wi ta en ru di m rtl (0 d ve no ta ch ie appropriate handling of stuttering 7,1% (2 ) reduction of core symptoms improvement of general linguistic skills 8,9% 5,4% pa 27,1% 42,9% 35,7% ) 37,3% 50% 40% 30% 20% 10% 0% (1 35,6% Degree of target achievement ry Overall target of treatment No significant difference between the 3 superordinate targets of treatment with regard to the degree of target achievement (χ2 = 1,429; p = 0,489). Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – Improvement of speech Acquisition of the chosen speech technique (n = 44) 21,3% 29,5% Use of the chosen technique in spontaneous speech (n = 42) 16,7% 0,0% 7,1% 21,3% 31,0% not possible conditionally possible good excellent 45,2% not possible conditionally possible good excellent Comparison of speech techniques: Easy onset, rhythmical speech, slow speech rate No significant difference between the 3 techniques with regard to acquisition (χ2 = 0,421; p = 0,814) and use in spontaneous speech (χ2 = 1,668; p = 0,434) Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – Improvement of speech The speech technique was acquired best, in cases of Correlation matrix – Acquisition and use in spontaneous speech Acquisition Use in spontaneous speech 1,000 ,635** r Acquisition State of health Sig. (2sided) n 44 42 r -,308* -,143 ,045 ,372 43 ,542 ** 41 ,519 ** Sig. (2sided) ,000 ,000 n 44 42 Sig. (2sided) n r Motivation * sig. 0,05 level ,000 **sig. 0,01 level ▪ good state of health ▪ high therapy motivation (of the patient) The use in spontaneous speech was best, in cases of ▪ an excellent acquired technique ▪ high therapy motivation (of the patient) Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – Improvement of speech Improvement in different speech situations excellent improvement No significant differences between speech techniques good improvement slight improvement no improvement improvement in therapy setting improvement in everyday life improvement in stressful situations Comparison of speech techniques: Easy onset, rhythmical speech, slow speech rate ▪ Improvement in therapy setting: χ2 = 0,391; p = 0,572 ▪ Improvement in everyday life: χ2 = 1,395; p = 0,238 ▪ Improvement in stressful situations: χ2 = 0,043; p = 0,836 Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – Improvement of speech therapy setting acquisition everyday life stressfull situations r 0,632** 0,515** 0,425* Sig. (2-sided) <0,001 0,003 0,015 n 32 32 32 r 0,461** 0,545 0,487** 0,009 0,002 0,005 31 use in spontaneous speech Sig. (2-sided) n 31 31 motivation r 0,347* 0,576** 0,513** 0,019 <0,001 <0,001 45 45 44 Sig. (2-sided) n Improvement of speech in different speech situations is correlated with ▪ the factor „acquisition“ ▪ the factor „use in spontaneous speech“ ▪ the factor „therapy motivation“ **sig. 0,01 level * sig. 0,05 level Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – Improvement of speech Transferring practiced skills M O T I V A T I O N A C Q U I S I T I O improvement in therapy setting U S E improvement in everyday life improvement in stressfull situations Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – Improvement of psycho-social factors More participation in communication situations Reduction of psychological strain 81,5% 83,6% 16,4% Self-confident handling of stuttering 81,5% 18,5% Yes No 18,5% Reduction of negative impact of stuttering on everyday life 25,5% 74,5% Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – Improvement of psycho-social factors Reciprocal conditionality of psycho social improvement Reduction of psychological strain Reduction of negative impact of stuttering on everyday life More participation in communication situations Selfconfident handling of stuttering significant correlation between different apsects of psycho-social improvement. Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – treament outcome Improvement of speech and psycho-social factors (n = 56) 19,6% 75,0% 1,8% 3,6% improvement of speech and psycho-social factors improvement of psycho social factors (solely) improvement of speech (solely) no improvement inhibiting factors: ▪ bad state of health ▪ lack of motivation ▪ irregular attendance of therapy i sessions Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Results – treament outcome initial condition final condition negativ significant improvement over the period of treatment: ▪ psycho-social ..improvement ▪ speech ..improvement positiv state of health severity of stuttestuttering severity of psychopsychological strain negative impact on everyday life state of health severity of stuttestuttering severity of psychopsychological strain negative impact on everyday life ▪ better state of ..health (p < 0,001) Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Presentation agenda 1. Definition and etiology 2. State of research in literature 3. Research questions 4. Empirical study and methodology 5. Findings 6. Conclusion Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Conclusion ▪ Similar methods as in developmental stuttering therapy can be used ▪ Specific stuttering therapy is often supplemented by other approaches ▪ A combination of multiple speech techniques is most often used Easy onset Rhythmical speech Slowing speech rate most frequently used techniques Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Conclusion ▪ ▪ Demand: treatment has to be based on the patients` indiviudal needs Practicing Learning and using an exact speech technique Transfer Supporting transfer into various speech situations Motivation Strengthening the patient`s motivation Improvement of speech and psycho-social factors in the majority of cases Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Prospect Research desideratum „Patients with acquired stuttering – just as those with developmental stuttering – deserve to receive the best evidence-based fluency intervention“ (De Nil, Jokel, Rochon, 2007, 327). Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Thank you very much for your attention! Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Acknowledgement Special thanks go to: My parents Heinrich Ulrich König und Ursula König Univ.-Prof. Dr. Gregor Dupuis Univ.-Prof. Dr. Nitza Katz-Bernstein Marcus Beckmann, Friedhelm Därmann, Anika Förster, Claudia Gerrlich, Maren Gezemba, Stefan Göthel, Robert Hammelmann, Stefani Holland, Matthew Kishinami, Jürgen Lamberti, Karolin Schäfer, Kathrin Sundermann, Alexander Sommer, the statistical center of the University of Dortmund and to all participants in the survey of this study. Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de References BAUMGARTNER, J.; DUFFY, J. R. (1997): Psychogenic stuttering in adults with and without neurologic disease. Journal of Medical SpeechSpeech-Lang Pathology, Vol. 5, S. 7575-95. BIJLEVELD, H.; SIMON, A.A.-M.: (1997) A case of acquired Stuttering following brain damage. In: Lebrun, Y.: (1997) From the brain to the mouth – Acquired Dysarthria and Dysfluency in Adults. Neuropsychology and and Cognition, Vol. 12, Dordrecht, Boston, London: Klower Academic Publishers, S. 163 163-169. BIJLEVELD, H.: (2001) Acquired stuttering: http:www.mnsu.edu/comdis/isad4/papers/bijleveld http:www.mnsu.edu/comdis/isad4/papers/bijleveld.html (Stand: 12/2005) CANTER, G. J.: (1971) Observation on neurogenic stuttering: a contribution contribution to differential diagnosis. British Journal of Disorders of Communication, Vol. 6, S. 139139-143. CIABARRA, A. M.; ELKIND, M. S.; ROBERTS, J. K.; MARSHALL, R. S.: (2000) Subcortical infarction resulting in acquired stuttering. Journal of Neurology, Neurosurgery and Psychiatry, Psychiatry, Vol. 69, S. 546546-549. CURLEE, R. F.: (1995) Comments on “Neurogenic stuttering: An analysis and critique” critique”. Journal of Medical SpeechSpeechLanguage Pathology, Vol. 3, S. 123123-124. DEAL, J.; CANNITO, M.: (1992) Acquired neurogenic dysfluency. In: In: VOGEL, D.; CANNITO, M. (Hrsg.): (1992) Treating Disordered Speech Motor Control – for Clinicians by Clinicians. Austin, Texas: Pro Ed, S.217S.217-239. DE NIL, F.; JOKEL, R.; ROCHON, E.: (2007) Etiology, symptomatology, symptomatology, and treatment of neurogenic stuttering. In: CONTURE, E. G.; CURLEE, R. F. (Hrsg.): (2007) Stuttering and related related disorders of fluency. 3. Auflage, New York, Stuttgart: Thieme. DE NIL, F.; ROCHON, E.; JOKEL, R. : (2008) AdultAdult-onset neurogenic stuttering. In: MCNEIL, M.: (2008) Clinical management of sensorimotor speech disorders. 2. Auflage, New York: York: Thieme, S. 235235-249. Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de References FARMER, A.: (1975) Stuttering repetitions in aphasic and nonaphasic nonaphasic brain damaged Adults. Cortex, Vol. 11, S. 391 396. FAWCETT, R. G.: (2005) StrokeStroke-associated acquired stuttering. CNS Spectrums, Vol. 10(2), S. 9494-95. GRANT, A. C.; BIOUSSE, V.; COOK, A. A.; NEWMAN, N. J.: (1999) Stroke Stroke associated stuttering. Archives of Neurology, Vol. 56, S.624S.624-627. GROHNFELDT, M.: (1992 b) Was ist „Erfolg“ Erfolg“ in der Stottertherapie?. Die Sprachheilarbeit, Vol. 37, S. 227227-239. HELM, N. A.; BUTLER, R; CANTER, G. J..: (1980) Neurogenic Acquired Acquired stuttering. Journal of Fluency Disorders, Vol. 5, S. 269269-279. HELMHELM-ESTABROOKS, N. A.: (1986) Diagnosis and management of neurogenic stuttering in adults. In: ST. LOUIS, K. O: (1986) The Atypical Stutterer – Principles and Practices of Rehabilitation. Speech, Language and and Hearing Series, Orlando: Academic Press, INC, S. 193217. 193 HELMHELM-ESTABROOKS, N. A.; HOTZ, G.: (1998) Sudden onset of “stuttering” stuttering” in an adult: neurogenic or psychogenic?. Seminars in speech and language, Vol. 19 (1), S. 2323-29. HELMHELM-ESTABROOKS, N. A.: (1999) Stuttering associated with acquired neurological neurological disorders. In: CURLEE, Richard F.: (1999) Stuttering and related disorders of fluency. New York: Thieme Medial Publishers, 2. Auflage, S.255S.255-268. JOKEL, R.; DE NIL, L.; SHARPE, K. : (2007) Speech Dysfluencies in Adults with Neurogenic Stuttering Stuttering Associated with Stroke and Traumatic Brain Injury. Journal of Medical Speech and Language Pathology, Vol. 15 (3), S. 243243-261. Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de References KÖNIG, K.: (2009) Mö Möglichkeiten und Grenzen in der Behandlung neurogenen Stotterns. Entwicklung, Evaluation und Anwendung eines Erhebungsinstrumentes. Dissertation. Technische Technische Universitä Universität Dortmund. LEBRUN, Y.; LELEUX, C.; ROUSSEAU, J.J.-J.; DEVREUX, F.: (1983) Acquired stuttering. Journal of Fluency Disorders, Vol. 8, S. 323323-330. LEBRUN, Y.: (1997) AdultAdult-onset stuttering. In: LEBRUN, Y: (1997) From the brain to the mouth. mouth. Kluwer Academic Publishers, Dordrecht, Boston, London, S. 105105-138. LEDER, S. B.: (1996) Adult onset of stuttering as a presenting sign sign in a Parkinson IanIan-like syndrome: a case report.Journal of communication disorders, Vol. 29, S.471S.471-478. LUCHSINGER, R.; ARNOLD, G. E.: (1970) Handbuch der StimmStimm- und Sprachheilkunde. 2. Band: ARNOLD: Die Sprache und ihre Stö Störungen. Wien, New York: SpringerSpringer-Verlag. MANNING, W. H.: (2001) Clinical Decision Making in Fluency Disorders. Disorders. 2. Auflage, Auckland: Singular. MARKET, K. E.; MONTAGUE, J. C.; BUFFALO, M. D.; DRUMMOND, S. S.: (1990) Acquired stuttering. Descriptive data and treatment outcome. Journal of Fluency Disorders, Vol. 15, S. 2121-33. MARSHALL, R. C.; STARCH, S. A.: (1984) Behavioral treatment of acquired acquired Stuttering. Autstralian Journal of human communication disorders, Vol. 12, S. 8787-92. NASS, R.; SCHRETER, B.; HEIER, L.: (1994) Acquired stuttering after after a second stroke in a twotwo-yearyear-old. Developmental Medicine and Child Neurology. Vol. 36, S. 7070-83. PRÜ PRÜFER, P.; Rexroth, M.: (2000) ZweiZwei-PhasenPhasen-Pretesting. Mannheim: ZUMAZUMA-Arbeitsbericht. RENNER, J. A.: (1995) Erfolg in der Stottertherapie. Schriften zur Sprachheilp ädagogik, Band 6, Berlin: Edition Sprachheilpä Marhold. Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de References RINGO, C.C.; DIETRICH, S.: (1995) Neurogenic Stuttering: An Analysis Analysis and Critique. Journal of Medical Speech Language Pathology, Vol. 3, S. 111111-122. ROSENBEK, J. C.: (1984) Stuttering secondary to Nervous System Damage. Damage. In: CURLEE, R. F.; PERKINS, W. H. (Hrsg.): (1985) Nature and Treatment of Stuttering: New Directions. Directions. San Diego, CollegeCollege-Hill, S. 3131-48. ROSENFIELD, D. B.; VISWANATH, N. S.; CALLISCALLIS-LANDRUM, L.; DI DANATO, R.; NUDELMAN, H. B.: (1991) Patients with Acquired Dysfluencies: What they tell us about developmental developmental stuttering. In: PETERS, H. F. M; HULSTIJN, W.; STARWEATHER, C. W.: (1991) Speech Motor Control and and Stuttering. International Congress Series 950. Amsterdam: Excerpta Medica. STEWART, T.; GRANTHAM, C.: (1993) A case of acquired stammering: the pattern of recovery. European Journal of Disorders of Communication, Vol. 28, S. 395395-403. STEWART, T.; ROWLEY, D.: (1996) Acquired stammering in Great Britain. Britain. European Journal of Disorders of Communication, Vol. 31, S. 11-9 TIPPETT, D. C.; SIEBENS, A. A.: (1991) Distinguishing psychogenic psychogenic from neurogenic dysfluency when neurologic and psychologic factors coexist. Journal of fluency disorders, Vol. 16, S. 33-12. VAN BORSEL, J.; VAN LIERDE, K.; OOSTRA, K.; EECKHAUT, C.: (1997) The differential diagnosis of latelate-onset stuttering. In: Lebrun, Y.: (1997) From the brain to the mouth – Acquired Dysarthria and Dysfluency in Adults. Neuropsychology and Cognition, Vol. 12, Dordrecht, Boston, London: London: Klower Academic Publishers, S. 153153-161. VAN RIPER, C.: (1982) The nature of stuttering. Englewood Cliffs N.J.: Prentice Hall. YARUSS, J.S.; QUESAL, R. W.: (2004) Stuttering and the international Classification of Functioning, Disability, and Health (ICF): An update. Journal of Communication Disorders, Vol. 37, S. 35-52. ZÜCKNER, H.; EBEL, H.: (2001) Erworbenes psychogenes Stottern bei Erwachsenen: Diagnostische und differenzialdiagnostische Aspekte. Sprache, Stimme, Gehö Gehör, Vol. 25, S.110S.110-117. Dr. Kathrin König ▪ Speech language pathologist ▪ Bochum ▪ Germany ▪ koenig1509@web.de Discussion I`d be happy to send you the bibliography. Please feel free to contact contact me at my email address. „Certain images and/or photos on this page are the copyrighted property property of 123RF Limited, their Contributors or Licensed Partners and are being used with permission under license. These images and/or photos may not not be copied or downloaded without permission from 123RF Limited.“ Limited.“cc
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