Frederick Unverzagt

  • 14492 Citations
  • 56 h-Index
1989 …2020

Research output per year

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Publications

1989

Anger assessment and its relation to self-report of aggressive behavior

Unverzagt, F. W. & Schill, T., 1989, In : Psychological reports. 65, 2, p. 585-586 2 p.

Research output: Contribution to journalArticle

14 Scopus citations
1991

Cognitive dysfunction in multiple sclerosis. I. Frequency, patterns, and prediction

Rao, S. M., Leo, G. J., Bernardin, L. & Unverzagt, F., May 1991, In : Neurology. 41, 5, p. 685-691 7 p.

Research output: Contribution to journalArticle

1567 Scopus citations

Cognitive dysfunction in multiple sclerosis. II. Impact on employment and social functioning

Rao, S. M., Leo, G. J., Ellington, L., Nauertz, T., Bernardin, L. & Unverzagt, F., May 1991, In : Neurology. 41, 5, p. 692-696 5 p.

Research output: Contribution to journalArticle

715 Scopus citations

Re: Cognitive function in MS

Rao, S. M., Leo, G. J., Bernardin, L. & Unverzagt, F., Dec 1991, In : Neurology. 41, 12, p. 2014-2015 2 p.

Research output: Contribution to journalLetter

7 Scopus citations
1993

Memory Dysfunction in Multiple Sclerosis: Its Relation to Working Memory, Semantic Encoding, and Implicit Learning

Rao, S. M., Grafman, J., DiGiulio, D., Mittenberg, W., Bernardin, L., Leo, G. J., Luchetta, T. & Unverzagt, F., Jul 1993, In : Neuropsychology. 7, 3, p. 364-374 11 p.

Research output: Contribution to journalArticle

159 Scopus citations
1994
26 Scopus citations
1995

Apolipoprotein E genotypes and Alzheimer's disease in a community study of elderly African Americans

Hendrie, H. C., Hall, K. S., Hui, S., Unverzagt, F. W., Yu, C. E., Lahiri, D. K., Sahota, A., Farlow, M., Musick, B., Brashear, A., Burdine, V. E., Osuntokun, B. O., Ogunniyi, A. O., Gureje, O., Baiyewu, O. & Schellenberg, G. D., Jan 1995, In : Annals of neurology. 37, 1, p. 118-120 3 p.

Research output: Contribution to journalArticle

126 Scopus citations

Lack of an association between apolipoprotein E ϵ4 and Alzheimer's disease in elderly nigerians

Osuntokun, B. O., Sahota, A., Ogunniyi, A. O., Gureje, O., Baiyewu, O., Adeyinka, A., Oluwole, S. O., Komolafe, O., Hall, K. S., Unverzagt, F. W., Hui, S. L., Yang, M. & Hendrie, H. C., Sep 1995, In : Annals of Neurology. 38, 3, p. 463-465 3 p.

Research output: Contribution to journalArticle

133 Scopus citations

Prevalence of Alzheimer's disease and dementia in two communities: Nigerian Africans and African Americans

Hendrie, H. C., Osuntokun, B. O., Hall, K. S., Ogunniyi, A. O., Hui, S. L., Unverzagt, F. W., Gureje, O., Rodenberg, C. A., Baiyewu, O., Musick, B. S., Adeyinka, A., Farlow, M. R., Oluwole, S. O., Class, C. A., Komolafe, O., Brashear, A. & Burdine, V., Oct 1995, In : American Journal of Psychiatry. 152, 10, p. 1485-1492 8 p.

Research output: Contribution to journalArticle

368 Scopus citations
1996

A cross-cultural community based study of dementias: methods and performance of the survey instrument indianapolis, U.S.A., and Ibadan, Nigeria

Hall, K. S., Ogunniyi, A. O., Hendrie, H. C., Osuntokun, B. O., Hui, S. L., Musick, B. S., Rodenberg, C. A., Unverzagt, F. W., Guerje, O. & Baiyewu, O., Jan 1 1996, In : International Journal of Methods in Psychiatric Research. 6, 3, p. 129-142 14 p.

Research output: Contribution to journalArticle

83 Scopus citations

Effects of age, education, and gender on CERAD neuropsychological test performance in an African American sample

Unverzagt, F. W., Hall, K. S., Torke, A. M., Rediger, J. D., Mercado, N., Gureje, O., Osuntokun, B. O. & Hendrie, H. C., Jun 5 1996, In : Clinical Neuropsychologist. 10, 2, p. 180-190 11 p.

Research output: Contribution to journalArticle

86 Scopus citations

Ethylene oxide neurotoxicity: A cluster of 12 nurses with peripheral and central nervous system toxicity

Brashear, A., Unverzagt, F. W., Farber, M. O., Bonnin, J. M., Garcia, J. G. N. & Grober, E., Apr 1996, In : Neurology. 46, 4, p. 992-998 7 p.

Research output: Contribution to journalArticle

30 Scopus citations

Psychiatric disorders in African American nursing home residents

Class, C. A., Unverzagt, F. W., Gao, S., Hall, K. S., Baiyewu, O. & Hendrie, H. C., May 1996, In : American Journal of Psychiatry. 153, 5, p. 677-681 5 p.

Research output: Contribution to journalArticle

25 Scopus citations
140 Scopus citations
93 Scopus citations
1997
16 Scopus citations

Profile of dementia in a Nigerian community-types, pattern of impairment, and severity rating

Ogunniyi, A., Gureje, O., Baiyewu, O., Unverzagt, F., Hall, K. S., Oluwole, S., Osuntokun, B. O. & Hendrie, H. C., Jun 1 1997, In : Journal of the National Medical Association. 89, 6, p. 392-396 5 p.

Research output: Contribution to journalArticle

16 Scopus citations

The association between apo E genotype and depressive symptoms in elderly African-American subjects

Class, C. A., Unverzagt, F. W., Gao, S., Sahota, A., Hall, K. S. & Hendrie, H. C., Jan 1 1997, In : American Journal of Geriatric Psychiatry. 5, 4, p. 339-343 5 p.

Research output: Contribution to journalArticle

16 Scopus citations

The dementing disorders

Hendrie, H. C., Unverzagt, F. W. & Austrom, M. G., Jul 23 1997, In : Psychiatric Quarterly. 68, 3, p. 261-279 19 p.

Research output: Contribution to journalReview article

4 Scopus citations
1998

Cognitive decline and education in mild dementia

Unverzagt, F. W., Hui, S. L., Farlow, M. R., Hall, K. S. & Hendrie, H. C., Jan 1998, In : Neurology. 50, 1, p. 181-185 5 p.

Research output: Contribution to journalArticle

52 Scopus citations

Functional brain imaging in apraxia

Kareken, D. A., Unverzagt, F., Caldemeyer, K., Farlow, M. R. & Hutchins, G. D., 1998, In : Archives of Neurology. 55, 1, p. 107-113 7 p.

Research output: Contribution to journalArticle

26 Scopus citations

Impaired traffic sign recognition in drivers with dementia

Brashear, A., Unverzagt, F. W., Kuhn, E. R., Glazier, B. S., Farlow, M. R., Perkins, A. J. & Hui, S. L., May 1998, In : American Journal of Alzheimer's Disease and Other Dementias. 13, 3, p. 131-137 7 p.

Research output: Contribution to journalArticle

22 Scopus citations
9 Scopus citations

Risk factors and Alzheimer's disease: A comparative study of two communities

Hall, K., Gureje, O., Gao, S., Ogunniyi, A., Hui, S. L., Baiyewu, O., Unverzagt, F. W., Oluwole, S. & Hendrie, H. C., Oct 1998, In : Australian and New Zealand Journal of Psychiatry. 32, 5, p. 698-706 9 p.

Research output: Contribution to journalArticle

45 Scopus citations
1999
Open Access
192 Scopus citations

Clinical utility of CERAD neuropsychological battery in elderly Jamaicans

Unverzagt, F. W., Morgan, O. S., Thesiger, C. H., Eldemire, D. A., Luseko, J., Pokuri, S., Hui, S. L., Hall, K. S. & Hendrie, H. C., Mar 1999, In : Journal of the International Neuropsychological Society. 5, 3, p. 255-259 5 p.

Research output: Contribution to journalArticle

39 Scopus citations
2000

Epidemiology of dementia in Nigeria: Results from the Indianapolis-Ibadan study

Ogunniyi, A., Baiyewu, O., Gureje, O., Hall, K. S., Unverzagt, F., Siu, S. H., Gao, S., Farlow, M., Oluwole, O. S. A., Komolafe, O. & Hendrie, H. C., 2000, In : European Journal of Neurology. 7, 5, p. 485-490 6 p.

Research output: Contribution to journalArticle

62 Scopus citations
114 Scopus citations

Neuroserpin mutation S52R causes Neuroserpin accumulation in neurons and is associated with progressive myoclonus epilepsy

Takao, M., Benson, M. D., Murrell, J. R., Yazaki, M., Piccardo, P., Unverzagt, F. W., Davis, R. L., Holohan, P. D., Lawrence, D. A., Richardson, R., Farlow, M. R. & Ghetti, B., 2000, In : Journal of Neuropathology and Experimental Neurology. 59, 12, p. 1070-1086 17 p.

Research output: Contribution to journalArticle

Open Access
61 Scopus citations

Senile dementia associated with amyloid β protein angiopathy and tau perivascular pathology but not neuritic plaques in patients homozygous for the APOE-ε4 allele

Vidal, R., Calero, M., Piccardo, P., Farlow, M. R., Unverzagt, F. W., Méndez, E., Jiménez-Huete, A., Beavis, R., Gallo, G., Gomez-Tortosa, E., Ghiso, J., Hyman, B. T., Frangione, B. & Ghetti, B., Jul 1 2000, In : Acta Neuropathologica. 100, 1, p. 1-12 12 p.

Research output: Contribution to journalArticle

59 Scopus citations

Trace element levels in drinking water and cognitive function among elderly Chinese

Emsley, C. L., Gao, S., Li, Y., Liang, C., Ji, R., Hall, K. S., Cao, J., Ma, F., Wu, Y., Ying, P., Zhang, Y., Sun, S., Unverzagt, F. W., Slemenda, C. W. & Hendrie, H. C., May 1 2000, In : American journal of epidemiology. 151, 9, p. 913-920 8 p.

Research output: Contribution to journalArticle

Open Access
32 Scopus citations
2001

Ectopic white matter neurons, a developmental abnormality that may be caused by the PSEN1 S169L mutation in a case of familial AD with myoclonus and seizures

Takao, M., Ghetti, B., Murrell, J. R., Unverzagt, F. W., Giaccone, G., Tagliavini, F., Bugiani, O., Piccardo, P., Hulette, C. M., Crain, B. J., Farlow, M. R. & Heyman, A., 2001, In : Journal of Neuropathology and Experimental Neurology. 60, 12, p. 1137-1152 16 p.

Research output: Contribution to journalArticle

Open Access
48 Scopus citations

Incidence of Dementia and Alzheimer disease in 2 communities: Yoruba residing in Ibadan, Nigeria, and African Americans residing in Indianapolis, Indiana

Hendrie, H. C., Ogunniyi, A., Hall, K. S., Baiyewu, O., Unverzagt, F. W., Gureje, O., Gao, S., Evans, R. M., Ogunseyinde, A. O., Adeyinka, A. O., Musick, B. & Hui, S. L., Feb 14 2001, In : Journal of the American Medical Association. 285, 6, p. 739-747 9 p.

Research output: Contribution to journalArticle

Open Access
295 Scopus citations

Morbidity pattern in a sample of elderly Nigerians resident in Idikan community, Ibadan.

Ogunniyi, A., Baiyewu, O., Gureje, O., Hall, K. S., Unverzagt, F. W., Oluwole, S. A., Farlow, M. I., Komolafe & Hendrie, H. C., 2001, In : West African journal of medicine. 20, 4, p. 227-231 5 p.

Research output: Contribution to journalArticle

22 Scopus citations

Performance of elderly African American and White community residents on the CERAD neuropsychological battery

Fillenbaum, G. G., Heyman, A., Huber, M. S., Ganguli, M. & Unverzagt, F. W., 2001, In : Journal of the International Neuropsychological Society. 7, 4, p. 502-509 8 p.

Research output: Contribution to journalArticle

61 Scopus citations

Prevalence of cognitive impairment: Data from the Indianapolis study of health and aging

Unverzagt, F. W., Gao, S., Baiyewu, O., Ogunniyi, A. O., Gureje, O., Perkins, A., Emsley, C. L., Dickens, J., Evans, R., Musick, B., Hall, K. S., Hui, S. L. & Hendrie, H. C., Nov 13 2001, In : Neurology. 57, 9, p. 1655-1662 8 p.

Research output: Contribution to journalArticle

251 Scopus citations
2002

Cognitive impairment in community-dwelling older Nigerians: Clinical correlates and stability of diagnosis

Baiyewu, O., Unverzagt, F. W., Ogunniyi, A., Hall, K. S., Gureje, O., Gao, S., Lane, K. A. & Hendrie, H. C., Nov 2002, In : European Journal of Neurology. 9, 6, p. 573-580 8 p.

Research output: Contribution to journalArticle

25 Scopus citations

Effects of cognitive training interventions with older adults: A randomized controlled trial

Ball, K., Berch, D. B., Helmers, K. F., Jobe, J. B., Leveck, M. D., Marsiske, M., Morris, J. N., Rebok, G. W., Smith, D. M., Tennstedt, S. L., Unverzagt, F. W. & Willis, S. L., Nov 13 2002, In : Journal of the American Medical Association. 288, 18, p. 2271-2281 11 p.

Research output: Contribution to journalArticle

1310 Scopus citations

Effects of stimulus predictability and interstimulus gap on saccades in Alzheimer's disease

Abel, L. A., Unverzagt, F. & Yee, R. D., 2002, In : Dementia and Geriatric Cognitive Disorders. 13, 4, p. 235-243 9 p.

Research output: Contribution to journalArticle

32 Scopus citations
131 Scopus citations

Risk of mortality for dementia in a developing country: The Yoruba in Nigeria

Perkins, A. J., Hui, S. L., Ogunniyi, A., Gureje, O., Baiyewu, O., Unverzagt, F. W., Gao, S., Hall, K. S., Musick, B. S. & Hendrie, H. C., 2002, In : International Journal of Geriatric Psychiatry. 17, 6, p. 566-573 8 p.

Research output: Contribution to journalArticle

38 Scopus citations

Six-item screener to identify cognitive impairment among potential subjects for clinical research

Callahan, C. M., Unverzagt, F. W., Hui, S. L., Perkins, A. J. & Hendrie, H. C., Sep 2002, In : Medical care. 40, 9, p. 771-781 11 p.

Research output: Contribution to journalArticle

791 Scopus citations
2003

Categorization and recognition performance of a memory-impared group: Evidence for single-system models

Zaki, S. R., Nosofsky, R. M., Jessup, N. M. & Unverzagt, F. W., Mar 2003, In : Journal of the International Neuropsychological Society. 9, 3, p. 394-406 13 p.

Research output: Contribution to journalReview article

55 Scopus citations
2004
41 Scopus citations

Selecting pre-screening items for early intervention trials of dementia - A case study

Li, L., Huang, J., Sun, S., Shen, J., Unverzagt, F. W., Gao, S., Hendrie, H. H., Hall, K. & Hui, S. L., Jan 30 2004, In : Statistics in Medicine. 23, 2, p. 271-283 13 p.

Research output: Contribution to journalReview article

4 Scopus citations
2005

Caring for individuals with dementia. The Nigerian experience

Ogunniyi, A., Hall, K. S., Baiyewu, O., Gureje, O., Unverzagt, F. W., Gao, S. & Hendrie, H. C., Jul 2005, In : West African journal of medicine. 24, 3, p. 259-262 4 p.

Research output: Contribution to journalArticle

13 Scopus citations

Implementing a screening and diagnosis program for dementia in primary care

Boustani, M., Callahan, C. M., Unverzagt, F. W., Austrom, M. G., Perkins, A. J., Fultz, B. A., Hui, S. L. & Hendrie, H. C., Jul 1 2005, In : Journal of general internal medicine. 20, 7, p. 572-577 6 p.

Research output: Contribution to journalArticle

244 Scopus citations

The Stick Design test: A new measure of visuoconstructional ability

Baiyewu, O., Unverzagt, F. W., Lane, K. A., Gureje, O., Ogunniyi, A., Musick, B., Gao, S., Hall, K. S. & Hendrie, H. C., Sep 2005, In : Journal of the International Neuropsychological Society. 11, 5, p. 598-605 8 p.

Research output: Contribution to journalArticle

42 Scopus citations
2006

An integrated model of comprehensive care for people with Alzheimer's disease and their caregivers in a primary care setting

Austrom, M. G., Hartwell, C., Moore, P., Perkins, A. J., Damush, T., Unverzagt, F. W., Boustani, M., Hendrie, H. C. & Callahan, C. M., Aug 2006, In : Dementia. 5, 3, p. 339-352 14 p.

Research output: Contribution to journalArticle

10 Scopus citations

APOE ε4 is not associated with Alzheimer's disease in elderly Nigerians

Gureje, O., Ogunniyi, A., Baiyewu, O., Price, B., Unverzagt, F. W., Evans, R. M., Smith-Gamble, V., Lane, K. A., Gao, S., Hall, K. S., Hendrie, H. C. & Murrell, J. R., Jan 2006, In : Annals of neurology. 59, 1, p. 182-185 4 p.

Research output: Contribution to journalArticle

81 Scopus citations