Neuroscience
Dixon RA, Garrett DD, Lentz TL, MacDonald SW, Strauss E, & Hultsch DF. Neurocognitive markers of cognitive impairment: Exploring the roles of speed and inconsistency. Neuropsychology; 2007 May; 21(3): 381-399.
Department of Psychology, University of Alberta, Edmonton, Alberta, Canada.
A well-known challenge for research in the cognitive neuropsychology of aging is to distinguish between the deficits and changes associated with normal aging and those indicative of early cognitive impairment. In a series of 2 studies, the authors explored whether 2 neurocognitive markers, speed (mean level) and inconsistency (intraindividual variability), distinguished between age groups (64-73 and 74-90+ years) and cognitive status groups (nonimpaired, mildly impaired, and moderately impaired). Study 1 (n = 416) showed that both level and inconsistency distinguished between the age and 2 cognitive status (not impaired, mildly impaired) groups, with a modest tendency for inconsistency to predict group membership over and above mean level. Study 2 (n = 304) replicated these results but extended them because of the qualifying effects associated with the unique moderately impaired oldest group. Specifically, not only were the groups more firmly distinguished by both indicators of speed, but evidence for the differential contribution of performance inconsistency was stronger. Neurocognitive markers of speed and inconsistency may be leading indicators of emerging cognitive impairment. (c) 2007 APA, all rights reserved
- Neuropsychology Abstract Of The Day: Assessment
This looks like a great contribution. I am looking forward to reading it. Age group and sex differences in performance on a computerized neurocognitive battery in children age 8-21 Neuropsychology. 2012 Jan 16; Gur RC, Richard J, Calkins ME, Chiavacci...
- Neuropsychology Abstract Of The Day: Chronic Congestive Heart Failure And Neuropsychological Function
Vogels RL, Oosterman JM, van Harten B, Scheltens P, van der Flier WM, Schroeder-Tanka JM, & Weinstein HC. Profile of Cognitive Impairment in Chronic Heart Failure. Journal of the American Geriatrics Society. 2007 Aug 28; [Epub ahead of print]. Department...
- Neuropsychology Abstract Of The Day: Olfactory Functioning And Mild Cognitive Impairment (mci)
Djordjevic J, Jones-Gotman M, De Sousa K, & Chertkow H. (2007). Olfaction in patients with mild cognitive impairment and Alzheimer's disease. Neurobiology and Aging [epub ahead of print.] Montreal Neurological Institute, 3801 University Street, Department...
- Abstract Of The Day: Olfactory Functioning
Wilson RS, Arnold SE, Tang Y, & Bennett DA. Odor identification and decline in different cognitive domains in old age. Neuroepidemiology. 2006; 26(2): 61-67. Rush Alzheimer's Disease Center, Rush Institute for Healthy Aging, and Department of Neurological...
- Abstract Of The Day: Neuropsychology Of Mild Cognitive Impairment (mci)
Lopez OL, Becker JT, Jagust W, Fitzpatrick A, Carlson M, T DU, Breitner J, Lyketsos C, Jones B, Kawas C, & Kuller LH. Neuropsychological characteristics of mild cognitive impairment subgroups. Journal of Neurology Neurosurgery and Psychiatry. 2005 Aug...
Neuroscience
Neuropsychology Abstract of the Day: Aging and Cognitive Function
Dixon RA, Garrett DD, Lentz TL, MacDonald SW, Strauss E, & Hultsch DF. Neurocognitive markers of cognitive impairment: Exploring the roles of speed and inconsistency. Neuropsychology; 2007 May; 21(3): 381-399.
Department of Psychology, University of Alberta, Edmonton, Alberta, Canada.
A well-known challenge for research in the cognitive neuropsychology of aging is to distinguish between the deficits and changes associated with normal aging and those indicative of early cognitive impairment. In a series of 2 studies, the authors explored whether 2 neurocognitive markers, speed (mean level) and inconsistency (intraindividual variability), distinguished between age groups (64-73 and 74-90+ years) and cognitive status groups (nonimpaired, mildly impaired, and moderately impaired). Study 1 (n = 416) showed that both level and inconsistency distinguished between the age and 2 cognitive status (not impaired, mildly impaired) groups, with a modest tendency for inconsistency to predict group membership over and above mean level. Study 2 (n = 304) replicated these results but extended them because of the qualifying effects associated with the unique moderately impaired oldest group. Specifically, not only were the groups more firmly distinguished by both indicators of speed, but evidence for the differential contribution of performance inconsistency was stronger. Neurocognitive markers of speed and inconsistency may be leading indicators of emerging cognitive impairment. (c) 2007 APA, all rights reserved
- Neuropsychology Abstract Of The Day: Assessment
This looks like a great contribution. I am looking forward to reading it. Age group and sex differences in performance on a computerized neurocognitive battery in children age 8-21 Neuropsychology. 2012 Jan 16; Gur RC, Richard J, Calkins ME, Chiavacci...
- Neuropsychology Abstract Of The Day: Chronic Congestive Heart Failure And Neuropsychological Function
Vogels RL, Oosterman JM, van Harten B, Scheltens P, van der Flier WM, Schroeder-Tanka JM, & Weinstein HC. Profile of Cognitive Impairment in Chronic Heart Failure. Journal of the American Geriatrics Society. 2007 Aug 28; [Epub ahead of print]. Department...
- Neuropsychology Abstract Of The Day: Olfactory Functioning And Mild Cognitive Impairment (mci)
Djordjevic J, Jones-Gotman M, De Sousa K, & Chertkow H. (2007). Olfaction in patients with mild cognitive impairment and Alzheimer's disease. Neurobiology and Aging [epub ahead of print.] Montreal Neurological Institute, 3801 University Street, Department...
- Abstract Of The Day: Olfactory Functioning
Wilson RS, Arnold SE, Tang Y, & Bennett DA. Odor identification and decline in different cognitive domains in old age. Neuroepidemiology. 2006; 26(2): 61-67. Rush Alzheimer's Disease Center, Rush Institute for Healthy Aging, and Department of Neurological...
- Abstract Of The Day: Neuropsychology Of Mild Cognitive Impairment (mci)
Lopez OL, Becker JT, Jagust W, Fitzpatrick A, Carlson M, T DU, Breitner J, Lyketsos C, Jones B, Kawas C, & Kuller LH. Neuropsychological characteristics of mild cognitive impairment subgroups. Journal of Neurology Neurosurgery and Psychiatry. 2005 Aug...