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Dexamphetamine boosts naming treatment effects in chronic aphasia

Published online by Cambridge University Press:  18 October 2007

EMMA WHITING
Affiliation:
Division of Speech Pathology, School of Health and Rehabilitation Sciences, The University of Queensland, Australia
HELEN J. CHENERY
Affiliation:
Division of Speech Pathology, School of Health and Rehabilitation Sciences, The University of Queensland, Australia
JONATHAN CHALK
Affiliation:
Department of Medicine, School of Medicine and Centre for Magnetic Resonance, The University of Queensland, Australia
DAVID A. COPLAND
Affiliation:
Division of Speech Pathology, School of Health and Rehabilitation Sciences, The University of Queensland, Australia

Abstract

To date, minimal research has investigated the effect of combining dexamphetamine with standard naming therapy after stroke. The present study used a double-blind, placebo-controlled, multiple baseline, crossover design with two individuals in the chronic stage of stroke recovery. Each individual attended two 4-week blocks of naming therapy (two to three treatment sessions per week). Dexamphetamine (10 mg) was administered at the start of each session during one therapy block, while a placebo was administered during the other therapy block. Therapy progress on treated and untreated items was assessed by a confrontation naming task during and after each therapy block. Both individuals showed greater progress in therapy and maintenance of therapy gains when behavioral treatment was combined with dexamphetamine rather than placebo, although this gain was only statistically significant in one individual. There was no significant improvement on a control task (nonword reading) in either individual. The results provide preliminary evidence that dexamphetamine paired with combined semantic and phonological therapy may be beneficial for the treatment of naming disorders in chronic aphasia. (JINS, 2007, 13, 972–979.)

Type
Research Article
Copyright
© 2007 The International Neuropsychological Society

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References

REFERENCES

Angrist, B., Corwin, J., Bartlik, B., & Cooper, T. (1987). Early pharmacokinetics and clinical effects of oral d-amphetamine in normal subjects. Biological Psychiatry, 22, 13571368.CrossRefGoogle Scholar
Asghar, S.J., Tanay, V.A., Baker, G.B., Greenshaw, A., & Silverstone, P.H. (2003). Relationship of plasma amphetamine levels to physiological, subjective, cognitive and biochemical measures in healthy volunteers. Human Psychopharmacology, 18, 291299.CrossRefGoogle Scholar
Best, W., Herbert, R., Hickin, J., Osborne, F., & Howard, D. (2002). Phonological and orthographic facilitation of word retrieval in aphasia: Immediate and delayed effects. Aphasiology, 16, 151168.CrossRefGoogle Scholar
Bhogal, S.K., Teasell, R., & Speechley, M. (2003). Intensity of aphasia therapy, Impact on recovery. Stroke, 34, 987992.CrossRefGoogle Scholar
Bordens, K. & Abbott, B. (1991). Research design and methods: A process approach (2nd ed.). California: Mayfield Publishing.
Breitenstein, C., Wailke, S., Bushuven, S., Kamping, S., Zwitserlood, P., Ringelstein, E.B., & Knecht, S. (2004). D-amphetamine boosts language learning independent of its cardiovascular and motor arousing effects. Neuropsychopharmacology, 29, 17041714.CrossRefGoogle Scholar
Cole-Virtue, J. & Nickels, L. (2004). Why cabbage and not carrot?: An investigation of factors affecting performance on spoken word to picture matching. Aphasiology, 18, 153179.CrossRefGoogle Scholar
Crisostomo, E.A., Duncan, P.W., Propst, M., Dawson, D.V., & Davis, J.N. (1988). Evidence that amphetamine with physical therapy promotes recovery of motor function in stroke patients. Annals of Neurology, 23, 9497.CrossRefGoogle Scholar
de Boissezon, X., Peran, P., de Boysson, C., & Demonet, J.-F. (2007). Pharmacotherapy of aphasia: Myth or reality? Brain and Language, 102, 114125.Google Scholar
Drew, R.L. & Thompson, C.K. (1999). Model-based semantic treatment for naming deficits in aphasia. Journal of Speech, Language, and Hearing Research, 42, 972989.CrossRefGoogle Scholar
Druks, J. & Masterson, J. (2000). An object and action naming battery: Manual. East Sussex, UK: Psychology Press.
Francis, W.N. & Kucera, H. (1982). Frequency analysis of English usage: Lexicon and grammar. Boston: Houghton Mifflin Company.
Howard, D. & Gatehouse, C. (2006). Distinguishing semantic and lexical word retrieval deficits in people with aphasia. Aphasiology, 20, 921950.CrossRefGoogle Scholar
Howard, D., Patterson, K., Franklin, S., Orchard-Lisle, V., & Morton, J. (1985a). Treatment of word retrieval deficits in aphasia: A comparison of two therapy measures. Brain, 108, 817829.Google Scholar
Howard, D., Patterson, K., Franklin, S., Orchard-Lisle, V., & Morton, J. (1985b). The facilitation of picture naming in aphasia. Cognitive Neuropsychology, 2, 4980.Google Scholar
Kaplan, E., Goodglass, H., & Weintraub, S. (1983). The Boston Naming Test. Philadelphia: Lea and Febiger.
Kay, J., Lesser, R., & Coltheart, M. (1992). Psycholinguistic Assessments of Language Processing in Aphasia (PALPA). Hove, UK: Psychology Press.
Knecht, S., Breitenstein, C., Bushuven, S., Wailke, S., Kamping, S., Floel, A., Zwitserlood, P., & Ringelstein, E.B. (2004). Levodopa: Faster and better word learning in normal humans. Annals of Neurology, 56, 2026.CrossRefGoogle Scholar
Knecht, S., Imai, T., Kamping, S., Breitenstein, C., Henningsen, H., Lutkenhoner, B., & Ringelstein, E.B. (2001). D-amphetamine does not improve outcome of somatosensory training. Neurology, 57, 22482252.CrossRefGoogle Scholar
Long, D. & Young, J. (2003). Dexamphetamine treatment in stroke. Quarterly Journal of Medicine, 96, 673685.CrossRefGoogle Scholar
Martinsson, L. & Eksborg, S. (2004). Drugs for stroke recovery: The example of amphetamines. Drugs and Aging, 21, 6779.CrossRefGoogle Scholar
McNeil, M.R., Doyle, P.J., Jackson Goda, A., Flores, D., & Small, S.L. (1997). A double-blind, placebo-controlled study of pharmacological and behavioural treatment of lexical-semantic deficits in aphasia. Aphasiology, 11, 385400.CrossRefGoogle Scholar
Miceli, G., Amitrano, A., Capasso, R., & Caramazza, A. (1996). The treatment of anomia resulting from output lexical damage: Analysis of two cases. Brain and Language, 52, 150174.CrossRefGoogle Scholar
Nadeau, S.E. & Wu, S.S. (2006). CIMT as a behavioral engine in research on physiological adjuvants to neurorehabilitation: The challenge of merging animal and human research. Neurorehabilitation, 21, 107130.Google Scholar
Nettleton, J. & Lesser, R. (1991). Therapy for naming difficulties in aphasia: Application of a cognitive neuropsychological model. Journal of Neurolinguistics, 6, 139157.CrossRefGoogle Scholar
Nickels, L. (2001). Words fail me: Symptoms and causes of naming breakdown in aphasia. In R.S. Berndt (Ed.), Handbook of neuropsychology: Language and aphasia (2nd ed., Vol. 3, pp. 115135). Amsterdam: Elsevier.
Nickels, L. (2002). Improving word finding: Practice makes (closer to) perfect? Aphasiology, 16, 10471060.Google Scholar
Nudo, R.J., Plautz, E.J., & Frost, S.B. (2001). Role of adaptive plasticity in recovery of function after damage to motor cortex. Muscle and Nerve, 24, 10001019.CrossRefGoogle Scholar
Patterson, K. & Shewell, C. (1987). Speak and spell: Dissociations and word-class effects. In M. Coltheart, R. Job, & G. Sartori (Eds.), The cognitive neuropsychology of language (pp. 273294). London: Lawrence Erlbaum.
Raymer, A.M., Bandy, D., Adair, J.C., Schwartz, R.L., Williamson, D.J., Gonzales Rothi, L.J., & Heilman, K.M. (2001). Effects of bromocriptine in a patient with crossed nonfluent aphasia: A case report. Archives of Physical Medicine and Rehabilitation, 82, 139144.CrossRefGoogle Scholar
Shisler, R.J., Bayliss, G.C., & Frank, E.M. (2000). Pharmacological approaches to the treatment and prevention of aphasia. Aphasiology, 14, 11631186.CrossRefGoogle Scholar
Snodgrass, J.G. & Vanderwart, M. (1980). A standardized set of 260 pictures: Norms for name agreement, image agreement, familiarity, and visual complexity. Journal of Experimental Psychology: Human Learning and Memory, 6, 174215.CrossRefGoogle Scholar
Soetens, E., Casaer, S., D'Hooge, R., & Hueting, J.E. (1995). Effect of amphetamine on long-term retention of verbal material. Psychopharmacology, 119, 155162.CrossRefGoogle Scholar
Soetens, E., D'Hooge, R., & Hueting, J.E. (1993). Amphetamine enhances human-memory consolidation. Neuroscience Letters, 161, 912.CrossRefGoogle Scholar
Stefanatos, G.A., Gershkoff, A., Joe, W.Q., & Ieuji, Y. (2006). Electrophysiological effects of a neuropharmacologic treatment in aphasia. Brain and Language, 99, 138139.CrossRefGoogle Scholar
Swinburn, K., Porter, G., & Howard, D. (2004). Comprehensive Aphasia Test–Manual. Hove, UK: Psychology Press.
Szekely, A., Jacobsen, T., D'Amico, S., Devescovi, A., Andonova, E., Herron, D., Lu, C.C., Pechmann, T., Pleh, C., Wicha, N., Federmeier, K., Gerdjikova, I., Gutierrez, G., Hung, D., Hsu, J., Iyer, G., Kohnert, K., Mehotcheva, T., Orozco-Figueroa, A., Tzeng, A., Arevalo, A., Vargha, A., Butler, A.C., Buffington, R., & Bates, E. (2004). A new on-line resource for psycholinguistic studies. Journal of Memory and Language, 51, 247250.CrossRefGoogle Scholar
Walker-Batson, D., Curtis, S., Natarajan, R., Ford, J., Dronkers, N., Salmeron, E., Lai, J., & Unwin, H. (2001). A double-blind, placebo-controlled study of the use of amphetamine in the treatment of aphasia. Stroke, 32, 20932098.CrossRefGoogle Scholar
Walker-Batson, D., Devous, M.D., Curtis, S.S., Unwin, H., & Greenlee, R.G. (1990). Response to amphetamine to facilitate recovery from aphasia subsequent to stroke. Clinical Aphasiology, 20, 137143.Google Scholar
Walker-Batson, D., Smith, P., & Curtis, S. (1995). Amphetamine paired with physical therapy accelerates motor recovery after stroke. Stroke, 26, 22542259.CrossRefGoogle Scholar
Walker-Batson, D., Smith, P., Curtis, S., & Unwin, D.H. (2004). Neuromodulation paired with learning dependent practice to enhance post stroke recovery? Restorative Neurology and Neuroscience, 22, 387392.Google Scholar
Walker-Batson, D., Unwin, H., Curtis, S., Allen, E., Wood, M., Smith, P., Devous, M.D., Reynolds, S., & Greenlee, R.G. (1992). Use of amphetamine in the treatment of aphasia. Restorative Neurology and Neuroscience, 4, 4750.Google Scholar
Whiting, E., Chenery, H.J., Chalk, J., Darnell, R., & Copland, D.A. (2007a). Dexamphetamine enhances explicit new word learning for novel objects. The International Journal of Neuropsychopharmacology, Jan 25, 1–12 [Epub ahead of print].Google Scholar
Whiting, E., Chenery, H.J., Chalk, J., Darnell, R., & Copland, D.A. (2007b). The explicit learning of new names for known objects is improved by dexamphetamine. Brain and Language, Apr 9; [Epub ahead of print].Google Scholar
Whitworth, A., Webster, J., & Howard, D. (2005). A cognitive neuropsychological approach to assessment and intervention in aphasia. Hove, UK: Psychology Press.
Zou, K.H., Fielding, J.R., Silverman, S.G., & Tempany, C.M. (2003). Hypothesis testing I: Proportions. Radiology, 226, 609613.CrossRefGoogle Scholar