References
- Gotham A-M., Brown R. C, Marsden C. D. Depression in Parkinson's disease: a quantitative and qualitative analysis. Journal of Neurology, Neurosurgery and Psychiatry 1986; 49: 381–389
- Harvey N. S. Psychiatric disorders in parkinsonism: 2: organic cerebral states and drug reactions. Psychosomatics 1986; 27: 175–184
- Lees A. J., Smith E. Cognitive deficits in the early stages of Parkinson's disease. Brain 1983; 106: 257–270
- Matthews C. G., Haaland K. Y. The effect of symptom deviation on cognitive and motor performance in Parkinsonism. Neurology 1979; 29: 951–956
- Monrad-Krohn G. H. Quelques remarques sur les alterations prosodiques et leurs consequences dans la clinic neurologique. Ada Psychiatrica et Neurologica Scandinavica 1956; 108: 265–267
- Monrad-Krohn G. H. The third element of speech: prosody in the neuro-psychiatric clinic. Journal of Mental Science 1957; 103: 326–331
- Pentland B., Pitcairn T. K., Gray J. M.A., Riddle W. J. R. The effects of reduced expression in Parkinson's disease on impression formation by health professionals. Clinical Rehabilitation 1987; 1: 307–313
- Riggio Friedman R. E.H. S. Impression formation: the role of expressive behaviour. Journal of Personality and Social Psychology 1986; 50: 421–427
- Robertson S. J., Thomson F. Speech therapy in Parkinson's Disease: a study of the efficacy and long term effects of intensive treatment. British Journal of Disorders of Communication 1984; 19: 213–224
- Scott S., Caird F. I. Speech therapy for Parkinson's disease. Journal of Neurology, Neurosurgery and Psychiatry 1983; 46: 140–144
- Scott S., Cairo F. I., Williams B. O. Communication in Parkinson's Disease. Croom Helm, London 1985
- Shrout P. E., Fiske D. W. Non-verbal behaviours and social evaluation. Journal of Personality 1981; 49: 128–155