Research Topics
| D F HultschSummaryAffiliation: University of Victoria Country: Canada Publications
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Detail Information
Publications
Use it or lose it: engaged lifestyle as a buffer of cognitive decline in aging?D F Hultsch
Department of Psychology, University of Victoria, British Columbia, Canada
Psychol Aging 14:245-63. 1999..However, an alternative model suggested the findings were also consistent with the hypothesis that high-ability individuals lead intellectually active lives until cognitive decline in old age limits their activities...
Intraindividual variability across cognitive domains: investigation of dispersion levels and performance profiles in older adultsJennifer V Hilborn
York University, Department of Psychology, Toronto, Canada
J Clin Exp Neuropsychol 31:412-24. 2009....- Intraindividual variability in cognitive performance in older adults: comparison of adults with mild dementia, adults with arthritis, and healthy adultsD F Hultsch
Department of Psychology, University of Victoria, British Columbia, Canada
Neuropsychology 14:588-98. 2000..Results suggest that intraindividual variability may be a behavioral indicator of compromised neurological mechanisms... - Variability in reaction time performance of younger and older adultsDavid F Hultsch
Department of Psychology, University of Victoria, British Columbia, Canada
J Gerontol B Psychol Sci Soc Sci 57:P101-15. 2002..The results indicate that variability of performance is an important indicator of cognitive functioning and aging... - Neurocognitive markers of cognitive impairment: exploring the roles of speed and inconsistencyRoger A Dixon
Department of Psychology, University of Alberta, Edmonton, Alberta, Canada
Neuropsychology 21:381-99. 2007..Neurocognitive markers of speed and inconsistency may be leading indicators of emerging cognitive impairment... - Using intraindividual variability to detect malingering in cognitive performanceE Strauss
Department of Psychology, University of Victoria, Victoria, BC, Canada
Clin Neuropsychol 13:420-32. 1999..The results suggest that response inconsistency across testing sessions may be a clinically useful measure for the detection of malingering... - Age-related slowing of digit symbol substitution revisited: what do longitudinal age changes reflect?Stuart W S MacDonald
Department of Psychology, University of Victoria, British Columbia, Canada
J Gerontol B Psychol Sci Soc Sci 58:P187-94. 2003..These discrepancies suggest different sources of variance may underlie cross-sectional age differences and longitudinal age changes for DSS... - Intraindividual variability in cognitive performance in persons with chronic fatigue syndromeK Fuentes
Department of Psychology, University of Victoria, Victoria, BC, Canada
Clin Neuropsychol 15:210-27. 2001..Intraindividual variability also uniquely differentiated the groups. The present findings support the proposition that intraindividual variability is a meaningful indicator of cognitive functioning in CFS patients... - Reaction time performance in adolescents with attention deficit/hyperactivity disorder: evidence of inconsistency in the fast and slow portions of the RT distributionBenjamin R Williams
University of Victoria, Victoria, British Columbia, Canada
J Clin Exp Neuropsychol 29:277-89. 2007..The results highlight the importance of fluctuations in cognitive performance in ADHD and suggest that there may be independent sources of variation in inconsistency affecting the fast and slow portions of the RT distribution... - Was that part of the story or did i just think so? Age and cognitive status differences in inference and story recognitionAllison A M Bielak
Department of Psychology, University of Victoria, Victoria, British Columbia, Canada
Exp Aging Res 33:295-322. 2007..Results support the proposal that participants used two different recognition strategies. Old-old and CIND adults may be less able to recognize that something plausible with an event may not have actually occurred... - Reaction time inconsistency in a spatial stroop task: age-related differences through childhood and adulthoodBenjamin R Williams
Department of Psychology, University of Victoria, Victoria, British Columbia, Canada
Neuropsychol Dev Cogn B Aging Neuropsychol Cogn 14:417-39. 2007..Reaction time inconsistency may reflect processing efficiency that is maximal in young adulthood and may also be sensitive to fluctuations in performance that reflect momentarily highly efficient responding... - Short-term changes in general and memory-specific control beliefs and their relationship to cognition in younger and older adultsAllison A M Bielak
Department of Psychology, University of Victoria, BC V8W 3P5, Canada
Int J Aging Hum Dev 65:53-71. 2007..The results suggest the importance of assessing short-term as well as long-term changes in perceived control to obtain a complete picture of aging-related changes... - Within-person variability in response speed as an indicator of cognitive impairment in older adultsEsther Strauss
Department of Psychology, University of Victoria, Victoria, British Columbia, Canada
Neuropsychol Dev Cogn B Aging Neuropsychol Cogn 14:608-30. 2007..Finally, group differentiation was better achieved when within-person variability as opposed to mean speed of performance was considered... 
Predicting impending death: inconsistency in speed is a selective and early markerStuart W S MacDonald
Aging Research Center, Karolinska Institutet, Stockholm, Sweden
Psychol Aging 23:595-607. 2008..Hierarchical prediction patterns support the view that inconsistency in speed is an early behavioral marker of neurological dysfunction associated with impending death...- Cognitive abilities and functional capacity in older adults: results from the modified Scales of Independent Behavior-RevisedJing Ee Tan
Department of Psychology, University of Victoria, Victoria, BC, Canada
Clin Neuropsychol 23:479-500. 2009..The findings reveal links between cognitive and functional abilities in a sample with varying degrees of cognitive impairment... - Functional abilities in older adults with mild cognitive impairmentCatherine L Burton
Department of Psychology, University of Victoria, Victoria, B C, Canada
Gerontology 55:570-81. 2009..One of the proposed criteria included preserved basic activities of daily living and minimal impairment in complex instrumental activities of daily living (IADLs)... - The relationship between everyday problem solving and inconsistency in reaction time in older adultsCatherine L Burton
Department of Psychology, University of Victoria, BC, Canada
Neuropsychol Dev Cogn B Aging Neuropsychol Cogn 16:607-32. 2009..These findings suggest that indicators of inconsistency in RT may be of functional relevance... - Self-reported cognitive inconsistency in older adultsSusan Vanderhill
Department of Psychology, University of Victoria, Victoria, British Columbia, Canada
Neuropsychol Dev Cogn B Aging Neuropsychol Cogn 17:385-405. 2010.... - Cognitive functioning and everyday problem solving in older adultsCatherine L Burton
Department of Psychology, University of Victoria, Victoria, BC, Canada
Clin Neuropsychol 20:432-52. 2006..These findings suggest that cognitive functioning along with demographic variables are important determinants of everyday problem-solving... - Aging and the shape of cognitive change before death: terminal decline or terminal drop?Stuart W S MacDonald
Department of Psychology, University of Victoria, Victoria, BC V8W 3P5, Canada
J Gerontol B Psychol Sci Soc Sci 66:292-301. 2011..Given that these terms are not necessarily synonymous, we examined the important theoretical distinction between the two alternative trajectories or shapes of changes they imply... - Intraindividual variability as a marker of neurological dysfunction: a comparison of Alzheimer's disease and Parkinson's diseaseCatherine L Burton
Department of Psychology, University of Victoria, Victoria, British Columbia, Canada
J Clin Exp Neuropsychol 28:67-83. 2006..Consequently, intraindividual variability may index both the severity of cognitive impairment and the nature of the neurological disturbance... - Inconsistency in reaction time across the life spanBenjamin R Williams
Department of Psychology, University of Victoria, Victoria, BC, Canada
Neuropsychology 19:88-96. 2005..The findings highlight the importance of considering moment-to-moment changes in performance in psychological research... - How'd they do it? Malingering strategies on symptom validity testsJing Ee Tan
Department of Psychology, University of Victoria, Victoria, BC, Canada
Clin Neuropsychol 16:495-505. 2002..Regardless, preparation effort did not translate into believable performance on the tests... - Intraindividual variability in cognitive performance in three groups of older adults: cross-domain links to physical status and self-perceived affect and beliefsEsther Strauss
Department of Psychology, University of Victoria, British Columbia, Canada
J Int Neuropsychol Soc 8:893-906. 2002..Considered together, the result indicated that measures of cognitive as well as physical variability are important behavioral markers of neurological integrity... - Intraindividual variability in physical and emotional functioning: comparison of adults with traumatic brain injuries and healthy adultsCatherine L Burton
Department of Psychology, University of Victoria, Victoria, B C, Canada
Clin Neuropsychol 16:264-79. 2002..The findings suggest that increased variability in physical function, as well as cognitive function, represents an indicator of neurological compromise... - Performance variability is related to change in cognition: evidence from the Victoria Longitudinal StudyStuart W S MacDonald
Department of Psychology, University of Victoria, British Columbia, Canada
Psychol Aging 18:510-23. 2003..These findings support the view that performance variability serves as a marker of cognitive aging... - Awareness of financial skills in dementiaL E Van Wielingen
Department of Psychology, University of Victoria, BC, Canada
Aging Ment Health 8:374-80. 2004.... - Episodic memory change in late adulthood: generalizability across samples and performance indicesRoger A Dixon
Department of Psychology, University of Alberta, Edmonton, Alberta, Canada
Mem Cognit 32:768-78. 2004..The exception-greater decline for more supported tasks-suggests that these may be especially sensitive to late-life changes... - Detecting malingering: a survey of experts' practicesDaniel J Slick
Department of Psychology, British Columbia's Children's Hospital, K3-122, 4480 Oak Street, Vancouver, BC, Canada, V6H 3V4
Arch Clin Neuropsychol 19:465-73. 2004..However, 41.7% rarely used the term 'malingering' and 12.5% never used the term. Most respondents (>80%) instead stated that the test results are invalid, inconsistent with the severity of the injury or indicative of exaggeration... - Measuring awareness of financial skills: reliability and validity of a new measureK Cramer
University of Victoria, Victoria, British Columbia, Canada
Aging Ment Health 8:161-71. 2004..This study provides evidence that the MAFS is a reliable and valid tool for assessing awareness of financial skills in older adults... - Latent change models of adult cognition: are changes in processing speed and working memory associated with changes in episodic memory?Christopher Hertzog
School of Psychology, Georgia Institute of Technology, 654 Cherry Street, Atlanta, Georgia 30332 0170, USA
Psychol Aging 18:755-69. 2003..Dissociations were detected between cross-sectional ability correlations and longitudinal changes. Shuffling the tasks used to define the Working Memory latent variable altered patterns of change correlations... - Stability and change in adult personality over 6 years: findings from the Victoria Longitudinal StudyBrent J Small
Department of Gerontology, University of South Florida, Tampa 33620, USA
J Gerontol B Psychol Sci Soc Sci 58:P166-76. 2003..Our study of 6-year personality development provided both (a). a confirmation of early significant stability findings and (b). unique evidence for significant individual differences in late adulthood... - Inconsistency in serial choice decision and motor reaction times dissociate in younger and older adultsDavid Bunce
Department of Psychology, Goldsmiths College, University of London, London, United Kingdom
Brain Cogn 56:320-7. 2004..The results are consistent with accounts suggesting that inconsistency in neurobiological mechanisms increases with age, and that attentional lapses or fluctuations in executive control contribute to RT inconsistency... - Intraindividual variability in vigilance performance: does degrading visual stimuli mimic age-related "neural noise"?Stuart W S MacDonald
Aging Research Center, Division of Geriatric Epidemiology, Neurotec, Karolinska Institutet, Stockholm, Sweden
J Clin Exp Neuropsychol 28:655-75. 2006..Results support current hypotheses suggesting that inconsistency serves as a marker of neurological integrity and are discussed in terms of potential underlying mechanisms...