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Understanding the world of dementia. How do people with dementia experience the world?

Published online by Cambridge University Press:  03 March 2016

Sandra A Zwijsen ,
Eva van der Ploeg  and
Cees M.P.M. Hertogh
Sandra A Zwijsen*
Affiliation:
Department of General Practice and Elderly Care Medicine/EMGO + Institute for Health and Care Research, VU Medical Center, Amsterdam, the Netherlands
Eva van der Ploeg
Affiliation:
Department of Public Health & Primary Care, Leiden University Medical Center, Leiden, the Netherlands
Cees M.P.M. Hertogh
Affiliation:
Department of General Practice and Elderly Care Medicine/EMGO + Institute for Health and Care Research, VU Medical Center, Amsterdam, the Netherlands
*
Correspondence should be addressed to: Sandra A. Zwijsen, Department of General Practice and Elderly Care Medicine/EMGO+Institute for Health and Care Research, VU Medical Center, Van der Boechorststraat 7, 1081 BT, Amsterdam, the Netherlands. Phone: +31 204 445681. Email: [email protected].
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Abstract

Background:

There is growing awareness that the subjective experience of people with dementia is important for understanding behavior and improving quality of life. This paper reviews and reflects on the currently available theories on subjective experience in dementia and it explores the possibility of a knowledge gap on the influence of neurological deficits on experience in late stage dementia.

Methods:

A literature review on current commonly used theories on experience in dementia was supplemented with a systematic review in PubMed and Psychinfo. For the systematic review, the terms used were Perception and Dementia and Behavior; and Awareness and Dementia and Long term care.

Results:

Current models emphasize the psychosocial factors that influence subjective experience, but the consequences of neurological deficits are not elaborated upon. The systematic literature search on the neuropsychological functioning in dementia resulted in 631 papers, of which 94 were selected for review. The current knowledge is limited to the early stages of Alzheimer's disease. Next to memory impairments, perception of the direct environment, interpretation of the environment, and inhibition of own responses to the environment seem to be altered in people with dementia.

Conclusions:

Without knowledge on how perception, interpretation and the ability for response control are altered, the behavior of people with dementia can easily be misinterpreted. Research into neuropsychological functioning of people in more severe stages and different forms of dementia is needed to be able to develop a model that is truly biopsychosocial. The proposed model can be used in such research as a starting point for developing tests and theories.

Keywords

dementiapsychogeriatricsBPSDneuropsychology
Type
Review Article
Information
International Psychogeriatrics , Volume 28 , Issue 7 , July 2016 , pp. 1067 - 1077
Copyright
Copyright © International Psychogeriatric Association 2016 

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References

Adenzato, M., Cavallo, M. and Enrici, I. (2010). Theory of mind ability in the behavioural variant of frontotemporal dementia: an analysis of the neural, cognitive, and social levels. Neuropsychologia, 48, 2–12.Google Scholar
Aine, C. J. et al., (2010). Different strategies for auditory word recognition in healthy versus normal aging. NeuroImage, 49, 3319–3330.Google Scholar
Algase, D. L., Son, G. R., Beattie, E., Song, J. A., Leitsch, S. and Yao, L. (2004). The interrelatedness of wandering and wayfinding in a community sample of persons with dementia. Dementia and Geriatric Cognitive Disorders, 17, 231–239.Google Scholar
Almor, A. et al. (2009). A common mechanism in verb and noun naming deficits in Alzheimer's patients. Brain and Language, 111, 8–19.Google Scholar
Ambron, E., McIntosh, R. D., Allaria, F. and Della, S. S. (2009). A large-scale retrospective study of closing-in behavior in Alzheimer's disease. Journal of the International Neuropsychological Society, 15, 787–792.CrossRefGoogle ScholarPubMed
Amieva, H. et al. (2004). Evidencing inhibitory deficits in Alzheimer's disease through interference effects and shifting disabilities in the Stroop test. Archives of Clinical Neuropsychology, 19, 791–803.Google Scholar
Babiloni, C. et al. (2005). Alpha rhythms in mild dements during visual delayed choice reaction time tasks: a MEG study. Brain Research Bulletin, 65, 457–470.CrossRefGoogle ScholarPubMed
Ballesteros, S. and Reales, J. M. (2004). Intact haptic priming in normal aging and Alzheimer's disease: evidence for dissociable memory systems. Neuropsychologia, 42, 1063–1070.CrossRefGoogle ScholarPubMed
Bediou, B. et al. (2009a). Impaired social cognition in mild Alzheimer disease. Journal of Geriatric Psychiatry and Neurology, 22, 130–140.Google Scholar
Bediou, B. et al. (2009b). Impaired social cognition in mild Alzheimer disease. Journal of Geriatric Psychiatry and Neurology, 22, 130–140.Google Scholar
Belleville, S., Rouleau, N. and van der Linden, M. (2006). Use of the Hayling task to measure inhibition of prepotent responses in normal aging and Alzheimer's disease. Brain and Cognition, 62, 113–119.Google Scholar
Bettcher, B. M., Giovannetti, T., Macmullen, L. and Libon, D. J. (2008). Error detection and correction patterns in dementia: a breakdown of error monitoring processes and their neuropsychological correlates. Journal of the International Neuropsychological Society, 14, 199–208.Google Scholar
Boccardi, M. and Frisoni, G. B. (2006). Cognitive rehabilitation for severe dementia: critical observations for better use of existing knowledge. Mechanisms of Ageing and Development, 127, 166–172.Google Scholar
Borg, C., Thomas-Anterion, C., Bogey, S., Davier, K. and Laurent, B. (2010). Visual imagery processing and knowledge of famous names in Alzheimer's disease and MCI. Neuropsychology, Development, and cognition. Section B, Aging, Neuropsychology and Cognition, 17, 603–614.Google Scholar
Budson, A. E., Wolk, D. A., Chong, H. and Waring, J. D. (2006). Episodic memory in Alzheimer's disease: separating response bias from discrimination. Neuropsychologia, 44, 2222–2232.Google Scholar
Burnham, H. and Hogervorst, E. (2004). Recognition of facial expressions of emotion by patients with dementia of the Alzheimer type. Dementia and Geriatric Cognitive Disorders, 18, 75–79.CrossRefGoogle ScholarPubMed
Burton, K. W. and Kaszniak, A. W. (2006). Emotional experience and facial expression in Alzheimer's disease. Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition, 13, 636–651.Google Scholar
Carlomagno, S., Santoro, A., Menditti, A., Pandolfi, M. and Marini, A. (2005). Referential communication in Alzheimer's type dementia. Cortex, 41, 520–534.Google Scholar
Castel, A. D., Balota, D. A., Hutchison, K. A., Logan, J. M. and Yap, M. J. (2007). Spatial attention and response control in healthy younger and older adults and individuals with Alzheimer's disease: evidence for disproportionate selection impairments in the Simon task. Neuropsychology, 21, 170–182.Google Scholar
Caterini, F., Della, S. S., Spinnler, H., Stangalino, C. and Tumbull, O. H. (2002). Object recognition and object orientation in Alzheimer's disease. Neuropsychology, 16, 146–155.Google Scholar
Chainay, H., Louarn, C. and Humphreys, G. W. (2006). Ideational action impairments in Alzheimer's disease. Brain and Cognition, 62, 198–205.CrossRefGoogle ScholarPubMed
Chan, A. S., Salmon, D. P. and De La Pena, J. (2001). Abnormal semantic network for "animals" but not "tools" in patients with Alzheimer's disease. Cortex, 37, 197–217.CrossRefGoogle Scholar
Cherrier, M. M., Mendez, M. and Perryman, K. (2001). Route learning performance in Alzheimer disease patients. Neuropsychiatry, Neuropsychology, and Behavioral Neurology, 14, 159–168.Google Scholar
Clare, L. (2004). The construction of awareness in early-stage Alzheimer's disease: a review of concepts and models. British Journal of Clinical Psychology, 43, 155–175.Google Scholar
Clare, L., Markova, I. S., Roth, I. and Morris, R. G. (2011). Awareness in Alzheimer's disease and associated dementias: theoretical framework and clinical implications. Aging & Mental Health, 15, 936–944.Google Scholar
Clare, L., Roth, I. and Pratt, R. (2005). Perceptions of change over time in early-stage Alzheimer's disease: Implications for understanding awareness and coping style. Dementia: The International Journal of Social Research and Practice, 4, 487–520.CrossRefGoogle Scholar
Clare, L., Rowlands, J., Bruce, E., Surr, C. and Downs, M. (2008). ‘I don't do like I used to do’: a grounded theory approach to conceptualising awareness in people with moderate to severe dementia living in long-term care. Social Science & Medicine, 66, 2366–2377.Google Scholar
Cohen-Mansfield, J. (2001). Nonpharmacologic interventions for inappropriate behaviors in dementia: a review, summary, and critique. The American Journal of Geriatric Psychiatry, 9, 361–381.Google Scholar
Cohen-Mansfield, J. (2013). Nonpharmacologic treatment of behavioral disorders in dementia. Current Treatment Options in Neurology, 15, 765–785.Google Scholar
Cohen-Mansfield, J. and Billig, N. (1986). Agitated behaviors in the elderly. I. A conceptual review. Journal of the American Geriatrics Society, 34, 711–721.Google Scholar
Cooper, C. et al. (2012). Systematic review of the effectiveness of non-pharmacological interventions to improve quality of life of people with dementia. International Psychogeriatrics, 24, 856–870.Google Scholar
Davies, B. and Harré, R. (1990). Positioning: the discursive production of selves. Journal for the Theory of Social Behaviour, 20, 43–63.Google Scholar
Davis, D. H. (2004). Dementia: sociological and philosophical constructions. Social Science & Medicine, 58, 369–378.Google Scholar
De Ipolyi, A. R., Rankin, K. P., Mucke, L., Miller, B. L. and Gorno-Tempini, M. L. (2007). Spatial cognition and the human navigation network in AD and MCI. Neurology, 69, 986–997.Google Scholar
Doninger, N. A. and Bylsma, F. W. (2007). Inhibitory control and affective valence processing in dementia of the Alzheimer type. Journal of Neuropsychology, 1, 65–83.Google Scholar
Drago, V. et al. (2010). Emotional indifference in Alzheimer's disease. The Journal of Neuropsychiatry, 22, 236–242.Google Scholar
Dröes, R. M. (1991). Psychosocial Care for Elderly with Dementia. Amsterdam: Vrije Universiteit.Google Scholar
Faust, M. E., Balota, D. A. and Multhaup, K. S. (2004). Phonological blocking during picture naming in dementia of the Alzheimer type. Neuropsychology, 18, 526–536.CrossRefGoogle ScholarPubMed
Feil, N. (1992). Validation therapy. Geriatric Nursing, 13, 129–133.Google Scholar
Feil, N. (1994). The Validation Breakthrough: Simple Techniques for Communicating with People with Alzheimer's-Type Dementia. Baltimore, MD: Health Professions Press.Google Scholar
Fielding, J., Georgiou-Karistianis, N. and White, O. (2006). The role of the basal ganglia in the control of automatic visuospatial attention. Journal of the International Neuropsychological Society, 12, 657–667.CrossRefGoogle ScholarPubMed
Fonti, C., Tempestini, A., Bracceschi, R., Cirignotta, F. and Stracciari, A. (2004). Verbal versus non-verbal performances in mild Alzheimer's disease. Archives of Gerontology and Geriatrics Supplement, 183–186.CrossRefGoogle ScholarPubMed
Fortinsky, R. H. (2001). Health care triads and dementia care: integrative framework and future directions. Aging & Mental Health, 5 (Suppl. 1), S35–S48.CrossRefGoogle ScholarPubMed
Freeman, R. Q. et al. (2000). Visuoconstructional problems in dementia: contribution of executive systems functions. Neuropsychology, 14, 415–426.Google Scholar
Gaestel, Y., Amieva, H., Letenneur, L., Dartigues, J. F. and Fabrigoule, C. (2006). Cube drawing performances in normal ageing and Alzheimer's disease: data from the PAQUID elderly population-based cohort. Dementia and Geriatric Cognitive Disorders, 21, 22–32.Google Scholar
Garcia-Rodriguez, B., Fusari, A., Rodriguez, B., Hernandez, J. M. and Ellgring, H. (2009). Differential patterns of implicit emotional processing in Alzheimer's disease and healthy aging. Journal of Alzheimer's Disease, 18, 541–551.Google Scholar
Garcia-Rodriguez, B., Vincent, C., Casares-Guillen, C., Ellgring, H. and Frank, A. (2012a). The effects of different attentional demands in the identification of emotional facial expressions in Alzheimer's disease. American Journal of Alzheimer's Disease and Other Dementia's, 27, 530–536.Google Scholar
Garcia-Rodriguez, B., Vincent, C., Casares-Guillen, C., Ellgring, H. and Frank, A. (2012b). The effects of different attentional demands in the identification of emotional facial expressions in Alzheimer's disease. American Journal of Alzheimer's Disease and Other Dementia's, 27, 530–536.Google Scholar
Gibson, M. C., MacLean, J., Borrie, M. and Geiger, J. (2004). Orientation behaviors in residents relocated to a redesigned dementia care unit. American Journal of Alzheimer's Disease and Other Dementias, 19, 45–49.Google Scholar
Graham, D. P., Kunik, M. E., Doody, R. and Snow, A. L. (2005). Self-reported awareness of performance in dementia. Brain Research. Cognitive Brain Research 25, 144–152.Google Scholar
Graham, K. S., Simons, J. S., Pratt, K. H., Patterson, K. and Hodges, J. R. (2000). Insights from semantic dementia on the relationship between episodic and semantic memory. Neuropsychologia, 38, 313–324.Google Scholar
Gronholm-Nyman, P., Rinne, J. O. and Laine, M. (2010). Learning and forgetting new names and objects in MCI and AD. Neuropsychologia, 48, 1079–1088.Google Scholar
Gross, J. et al. (2004). Recognition of self among persons with dementia: pictures versus names as environmental supports. Environment and Behavior, 36, 424–454.Google Scholar
Grossman, M. et al. (2012). Difficulty processing temporary syntactic ambiguities in Lewy body spectrum disorder. Brain and Language, 120, 52–60.CrossRefGoogle ScholarPubMed
Hall, G. R. and Buckwalter, K. C. (1987). Progressively lowered stress threshold: a conceptual model for care of adults with Alzheimer's disease. Archives of Psychiatric Nursing, 1, 399–406.Google Scholar
Hargrave, R., Maddock, R. J. and Stone, V. (2002). Impaired recognition of facial expressions of emotion in Alzheimer's disease. The Journal of Neuropsychiatry, 14, 64–71.Google Scholar
Henry, J. D. et al. (2008). Recognition of disgust is selectively preserved in Alzheimer's disease. Neuropsychologia, 46, 1363–1370.Google Scholar
Henry, J. D. et al. (2009). Threat perception in mild cognitive impairment and early dementia. The Journals of Gerontology. Series B, Psychological Sciences and Social Sciences, 64, 603–607.Google Scholar
Henry, J. D. et al. (2012a). Perception of biological motion and emotion in mild cognitive impairment and dementia. Journal of the International Neuropsychological Society, 18, 866–873.CrossRefGoogle ScholarPubMed
Henry, J. D. et al. (2012b). Perception of biological motion and emotion in mild cognitive impairment and dementia. Journal of the International Neuropsychological Society, 18, 866–873.CrossRefGoogle ScholarPubMed
Hertogh, C. M., The, B. A., Miesen, B. M. and Eefsting, J. A. (2004). Truth telling and truthfulness in the care for patients with advanced dementia: an ethnographic study in Dutch nursing homes. Social Science & Medicine, 59, 1685–1693.Google Scholar
Horley, K., Reid, A. and Burnham, D. (2010). Emotional prosody perception and production in dementia of the Alzheimer's type. Journal of Speech Language and Hearing Research, 53, 1132–1146.Google Scholar
Jefferson, A. L., Barakat, L. P., Giovannetti, T., Paul, R. H. and Glosser, G. (2006). Object perception impairments predict instrumental activities of daily living dependence in Alzheimer's disease. Journal of Clinical and Experimental Neuropsychology, 28, 884–897.Google Scholar
Jonker, C., Geerlings, M. I. and Schmand, B. (2000a). Are memory complaints predictive for dementia? A review of clinical and population-based studies. International Journal of Geriatric Psychiatry, 15, 983–991.Google Scholar
Jonker, C., Geerlings, M. I. and Schmand, B. (2000b). Are memory complaints predictive for dementia? A review of clinical and population-based studies. International Journal of Geriatric Psychiatry, 15, 983–991.Google Scholar
Kales, H. C., Gitlin, L. N. and Lyketsos, C. G. (2015). Assessment and management of behavioral and psychological symptoms of dementia. British Medical Journal, 350, h369.Google Scholar
Kavcic, V., Fernandez, R., Logan, D. and Duffy, C. J. (2006). Neurophysiological and perceptual correlates of navigational impairment in Alzheimer's disease. Brain, 129, 736–746.Google Scholar
Kessels, R. P., Rijken, S., Joosten-Weyn Banningh, L. W., Van Schuylenborgh-VAN, E. N. and Olde Rikkert, M. G. (2010). Categorical spatial memory in patients with mild cognitive impairment and Alzheimer dementia: positional versus object-location recall. Journal of the International Neuropsychological Society, 16, 200–204.Google Scholar
Kitwood, T. (1993). Person and process in dementia. International Journal of Geriatric Psychiatry, 8, 545.Google Scholar
Kitwood, T. (1997). Dementia Reconsidered. The Person Comes First. Buckingham: Open University Press.Google Scholar
Klein-Koerkamp, Y., Beaudoin, M., Baciu, M. and Hot, P. (2012). Emotional decoding abilities in Alzheimer's disease: a meta-analysis. Journal of Alzheimer's Disease, 32, 109–125.Google Scholar
Klimkowicz-Mrowiec, A., Krzywoszanski, L., Spisak, K., Szczudlik, A. and Slowik, A. (2013). Emotional decoding abilities do not influence behavioral disturbances in Alzheimer's disease. Journal of the American Geriatrics Society, 61, 454–456.Google Scholar
Ko, P. C., Kilduff, P. T., Higgens, J. A., Milberg, W. and McGlinchey, R. (2005). Evidence for intact selective attention in Alzheimer's disease patients using a location priming task. Neuropsychology, 19, 381–389.Google Scholar
Kooij, C. V. D. (2002). Gewoon Lief Zijn? Het Maieutisch Zorgconcept En Het Verzorgen Van Mensen Met Dementie. Utrecht: Lemma.Google Scholar
Lang, C. J., Leuschner, T., Ulrich, K., Stossel, C., Heckmann, J. G. and Hummel, T. (2006). Taste in dementing diseases and parkinsonism. Journal of the Neurological Sciences, 248, 177–184.Google Scholar
Levinoff, E. J., Li, K. Z., Murtha, S. and Chertkow, H. (2004). Selective attention impairments in Alzheimer's disease: evidence for dissociable components. Neuropsychology, 18, 580–588.CrossRefGoogle ScholarPubMed
Livingston, G., Johnston, K., Katona, C., Paton, J. and Lyketsos, C. G. (2005). Systematic review of psychological approaches to the management of neuropsychiatric symptoms of dementia. The American Journal of Psychiatry, 162, 1996–2021.CrossRefGoogle Scholar
Lloyd-Jones, T. J. (2005). The role of color in the implicit memory performance of healthy older adults and individuals with Alzheimer's disease. Neuropsychology, 19, 44–53.Google Scholar
Luzzi, S., Piccirilli, M. and Provinciali, L. (2007). Perception of emotions on happy/sad chimeric faces in Alzheimer disease: relationship with cognitive functions. Alzheimer Disease and Associated Disorders, 21, 130–135.Google Scholar
MacDonald, M. C., Almor, A., Henderson, V. W., Kempler, D. and Andersen, E. S. (2001). Assessing working memory and language comprehension in Alzheimer's disease. Brain and Language, 78, 17–42.Google Scholar
Mahendra, N., Bayles, K. A. and Harris, F. P. (2005). Effect of presentation modality on immediate and delayed recall in individuals with Alzheimer's disease. American Journal of Speech-Language Pathology, 14, 144–155.Google Scholar
Markova, I. S., Clare, L., Wang, M., Romero, B. and Kenny, G. (2005). Awareness in dementia: conceptual issues. Aging & Mental Health, 9, 386–393.CrossRefGoogle ScholarPubMed
Marra, C., Ferraccioli, M. and Gainotti, G. (2007). Gender-related dissociations of categorical fluency in normal subjects and in subjects with Alzheimer's disease. Neuropsychology, 21, 207–211.Google Scholar
Maylor, E. A., Sheehan, B., Watson, D. G. and Henderson, E. L. (2008). Enumeration in Alzheimer's disease and other late life psychiatric syndromes. Neuropsychologia, 46, 2696–2708.CrossRefGoogle ScholarPubMed
Moreno-Martinez, F. J. (2010). Size matters: a study on naming and size knowledge in dementia of the Alzheimer type. Neurocase, 16, 494–502.Google Scholar
Mosimann, U. P., Felblinger, J., Ballinari, P., Hess, C. W. and Muri, R. M. (2004). Visual exploration behaviour during clock reading in Alzheimer's disease. Brain, 127, 431–438.Google Scholar
Mozaz, M., Garaigordobil, M., Gonzalez Rothi, L. J., Anderson, J., Crucian, G. P. and Heilman, K. M. (2006). Posture recognition in Alzheimer's disease. Brain and Cognition, 62, 241–245.CrossRefGoogle ScholarPubMed
Naslund, J. (2010). Visuospatial ability in relation to fall risk and dementia. Archives of Neurology, 67, 643–644.Google Scholar
Neargarder, S. A. and Cronin-Golomb, A. (2005). Characteristics of visual target influence detection of change in naturalistic scenes in Alzheimer disease. Cognitive and Behavioral Neurology, 18, 151–158.Google Scholar
Norman, I., Redfern, S., Briggs, K. and Askham, J. (2004). Perceptions and management of change by people with dementia and their carers living at home. Dementia: The International Journal of Social Research and Practice, 3, 19–44.Google Scholar
O'Brien, H. L., Tetewsky, S. J., Avery, L. M., Cushman, L. A., Makous, W. and Duffy, C. J. (2001). Visual mechanisms of spatial disorientation in Alzheimer's disease. Cerebral Cortex, 11, 1083–1092.Google Scholar
O'Connor, D. W., Ames, D., Gardner, B. and King, M. (2009a). Psychosocial treatments of behavior symptoms in dementia: a systematic review of reports meeting quality standards. International Psychogeriatrics, 21, 225–240.Google Scholar
O'Connor, D. W., Ames, D., Gardner, B. and King, M. (2009b). Psychosocial treatments of psychological symptoms in dementia: a systematic review of reports meeting quality standards. International Psychogeriatrics, 21, 241–251.Google Scholar
Okonkwo, O. C., Wadley, V. G., Ball, K., Vance, D. E. and Crowe, M. (2008). Dissociations in visual attention deficits among persons with mild cognitive impairment. Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition, 15, 492–505.Google Scholar
Padilla, R. (2011). Effectiveness of environment-based interventions for people with Alzheimer's disease and related dementias. The American Journal of Occupational Therapy, 65, 514–522.Google Scholar
Perrin, M., Henaff, M. A., Padovan, C., Faillenot, I., Merville, A. and Krolak-Salmon, P. (2012). Influence of emotional content and context on memory in mild Alzheimer's disease. Journal of Alzheimer's Disease, 29, 817–826.Google Scholar
Peters, F., Majerus, S., Olivier, L., van der Linden, M., Salmon, E. and Collette, F. (2007). A multicomponent exploration of verbal short-term storage deficits in normal aging and Alzheimer's disease. Journal of Clinical and Experimental Neuropsychology, 29, 405–417.Google Scholar
Phillips, L. H., Scott, C., Henry, J. D., Mowat, D. and Bell, J. S. (2010). Emotion perception in Alzheimer's disease and mood disorder in old age. Psychology and Aging, 25, 38–47.Google Scholar
Pignatti, R. et al. (2005). Specific impairments of selective attention in mild Alzheimer's disease. Journal of Clinical and Experimental Neuropsychology, 27, 436–448.Google Scholar
Reid, D., Ryan, T. and Enderby, P. (2001). What does it mean to listen to people with dementia?. Disability & Society, 16, 377–392.Google Scholar
Rueda, A. D. and Schmitter-Edgecombe, M. (2009). Time estimation abilities in mild cognitive impairment and Alzheimer's disease. Neuropsychology, 23, 178–188.Google Scholar
Sabat, S. R. (2005). Capacity for decision-making in Alzheimer's disease: selfhood, positioning and semiotic people. Australian & New Zealand Journal of Psychiatry, 39, 1030–1035.CrossRefGoogle ScholarPubMed
Sabat, S. R. (2006). Implicit memory and people with Alzheimer's disease: implications for caregiving. American Journal of Alzheimer's Disease and Other Dementias, 21, 11–14.CrossRefGoogle ScholarPubMed
Sabat, S. R. and Harré, R. (1994). The Alzheimer's disease sufferer as a semiotic subject. Philosophy, Psychiatry & Psychology, 1, 145–160.Google Scholar
Sabat, S. R., Johnson, A., Swarbrick, C. and Keady, J. (2011). The 'demented other' or simply 'a person'? Extending the philosophical discourse of Naue and Kroll through the situated self. Nursing Philosophy, 12, 282–292.Google Scholar
Schnider, A. (2000). Spontaneous confabulations, disorientation, and the processing of 'now'. Neuropsychologia, 38, 175–185.Google Scholar
Shany-Ur, T. et al. (2012). Comprehension of insincere communication in neurodegenerative disease: lies, sarcasm, and theory of mind. Cortex, 48, 1329–1341.Google Scholar
Shimokawa, A. et al. (2001a). Influence of deteriorating ability of emotional comprehension on interpersonal behavior in Alzheimer-type dementia. Brain and Cognition, 47, 423–433.Google Scholar
Shimokawa, A. et al. (2001b). Influence of deteriorating ability of emotional comprehension on interpersonal behavior in Alzheimer-type dementia. Brain and Cognition, 47, 423–433.Google Scholar
Slavin, M. J., Mattingley, J. B., Bradshaw, J. L. and Storey, E. (2002). Local-global processing in Alzheimer's disease: an examination of interference, inhibition and priming. Neuropsychologia, 40, 1173–1186.Google Scholar
Small, J. A., Kemper, S. and Lyons, K. (2000). Sentence repetition and processing resources in Alzheimer's disease. Brain and Language, 75, 232–258.CrossRefGoogle ScholarPubMed
Smith, M., Gerdner, L. A., Hall, G. R. and Buckwalter, K. C. (2004). History, development, and future of the progressively lowered stress threshold: a conceptual model for dementia care. Journal of the American Geriatrics Society, 52, 1755–1760.Google Scholar
Smits, L. L. et al. (2012). Early onset Alzheimer's disease is associated with a distinct neuropsychological profile. Journal of Alzheimer's Disease, 30, 101–108.Google Scholar
Taler, V., Baum, S. R., Chertkow, H. and Saumier, D. (2008). Comprehension of grammatical and emotional prosody is impaired in Alzheimer's disease. Neuropsychology, 22, 188–195.Google Scholar
Tippett, L. J., Gendall, A., Farah, M. J. and Thompson-Schill, S. L. (2004). Selection ability in Alzheimer's disease: investigation of a component of semantic processing. Neuropsychology, 18, 163–173.Google Scholar
Vaughan, F. L., Hughes, E. A., Jones, R. S., Woods, R. T. and Tipper, S. P. (2006). Spatial negative priming in early Alzheimer's disease: evidence for reduced cognitive inhibition. Journal of the International Neuropsychological Society, 12, 416–423.Google Scholar
Vliet, E. C., Manly, J., Tang, M. X., Marder, K., Bell, K. and Stern, Y. (2003). The neuropsychological profiles of mild Alzheimer's disease and questionable dementia as compared to age-related cognitive decline. Journal of the International Neuropsychological Society, 9, 720–732.Google Scholar
Warrington, E. K. and Davidoff, J. (2000). Failure at object identification improves mirror image matching. Neuropsychologia, 38, 1229–1234.Google Scholar
Washburn, A. M. and Sands, L. P. (2006). Social cognition in nursing home residents with and without cognitive impairment. The Journals of Gerontology. Series B, Psychological Sciences and Social Sciences, 61, 174–179.Google Scholar
Westerberg, C. E. et al. (2006). When memory does not fail: familiarity-based recognition in mild cognitive impairment and Alzheimer's disease. Neuropsychology, 20, 193–205.Google Scholar
Willems, S., Adam, S. and van der Linden, M. (2002). Normal mere exposure effect with impaired recognition in Alzheimer's disease. Cortex, 38, 77–86.CrossRefGoogle ScholarPubMed
Wilson, R. S., Arnold, S. E., Schneider, J. A., Tang, Y. and Bennett, D. A. (2007). The relationship between cerebral Alzheimer's disease pathology and odour identification in old age. Journal of Neurology, Neurosurgery & Psychiatry, 78, 30–35.Google Scholar
Wolk, D. A., Gold, C. A., Signoff, E. D. and Budson, A. E. (2009). Discrimination and reliance on conceptual fluency cues are inversely related in patients with mild Alzheimer's disease. Neuropsychologia, 47, 1865–1872.Google Scholar
Woods, R. T. (2001). Discovering the person with Alzheimer's disease: cognitive, emotional and behavioural aspects. Aging & Mental Health, 5 (Suppl. 1), S7–16.Google Scholar
Yokoi, T., Haraguchi, E., Hashimoto, T. and Okamura, H. (2012). Investigation of eating actions of people with dementia from the viewpoint of self-awareness. American Journal of Alzheimer's Disease and Other Dementias, 27, 228–237.Google Scholar
Zaitchik, D. and Solomon, G. E. (2008). Animist thinking in the elderly and in patients with Alzheimer's disease. Cognitive Neuropsychology, 25, 27–37.Google Scholar