Kevin M Duff

Summary

Affiliation: University of Iowa
Country: USA

Publications

  1. ncbi Modified scoring criteria for the RBANS figures
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, Iowa 52242 1000, USA
    Appl Neuropsychol 14:73-83. 2007
  2. pmc Short-term practice effects in amnestic mild cognitive impairment: implications for diagnosis and treatment
    Kevin Duff
    Department of Psychiatry, College of Medicine, University of Iowa, Iowa City, IA 52242 1000, USA
    Int Psychogeriatr 20:986-99. 2008
  3. ncbi Regression-based formulas for predicting change in RBANS subtests with older adults
    Kevin Duff
    Department of Psychiatry, University of Iowa, MEB 1 308, Iowa City, IA 52242 1000, USA
    Arch Clin Neuropsychol 20:281-90. 2005
  4. pmc Risperidone and the treatment of psychiatric, motor, and cognitive symptoms in Huntington's disease
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, IA 52242 1000, USA
    Ann Clin Psychiatry 20:1-3. 2008
  5. doi On becoming a peer reviewer for a neuropsychology journal
    Kevin Duff
    Deparment of Psychiatry, Roy J and Lucille A Carver College of Medicine, University of Iowa, 1 308 MEB, Iowa City, IA 52242 1000, USA
    Arch Clin Neuropsychol 24:201-7. 2009
  6. ncbi Walking speed and global cognition: results from the OKLAHOMA Study
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, IA 52242 1000, USA
    Neuropsychol Dev Cogn B Aging Neuropsychol Cogn 15:31-9. 2008
  7. ncbi Examining the repeatable battery for the assessment of neuropsychological status: factor analytic studies in an elderly sample
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, IA 52242 1000, USA
    Am J Geriatr Psychiatry 14:976-9. 2006
  8. pmc Practice effects in the prediction of long-term cognitive outcome in three patient samples: a novel prognostic index
    Kevin Duff
    University of Iowa, Department of Psychiatry, MEB 1 308, Iowa City, IA 52242 1000, United States
    Arch Clin Neuropsychol 22:15-24. 2007
  9. pmc Cognitive deficits in Huntington's disease on the Repeatable Battery for the Assessment of Neuropsychological Status
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, IA 52242 1000, USA
    J Clin Exp Neuropsychol 32:231-8. 2010
  10. ncbi Pre- and post-right middle cerebral artery stroke in a young adult: a case study examining the sensitivity of the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS)
    Kevin Duff
    University of Iowa, Department of Psychiatry, MEB 1 308, Iowa City, IA 52242 1000, USA
    Appl Neuropsychol 13:194-200. 2006

Research Grants

Detail Information

Publications49

  1. ncbi Modified scoring criteria for the RBANS figures
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, Iowa 52242 1000, USA
    Appl Neuropsychol 14:73-83. 2007
    ....
  2. pmc Short-term practice effects in amnestic mild cognitive impairment: implications for diagnosis and treatment
    Kevin Duff
    Department of Psychiatry, College of Medicine, University of Iowa, Iowa City, IA 52242 1000, USA
    Int Psychogeriatr 20:986-99. 2008
    ..Practice effects have been widely reported in healthy older adults, but these improvements due to repeat exposure to test materials have been more equivocal in individuals with mild cognitive impairment (MCI)...
  3. ncbi Regression-based formulas for predicting change in RBANS subtests with older adults
    Kevin Duff
    Department of Psychiatry, University of Iowa, MEB 1 308, Iowa City, IA 52242 1000, USA
    Arch Clin Neuropsychol 20:281-90. 2005
    ..A case example is presented that utilizes the formulas...
  4. pmc Risperidone and the treatment of psychiatric, motor, and cognitive symptoms in Huntington's disease
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, IA 52242 1000, USA
    Ann Clin Psychiatry 20:1-3. 2008
    ..Huntington's disease (HD) is a progressive, neuropsychiatric disorder, and limited reports indicate that risperidone might improve motor and psychiatric functioning for these patients...
  5. doi On becoming a peer reviewer for a neuropsychology journal
    Kevin Duff
    Deparment of Psychiatry, Roy J and Lucille A Carver College of Medicine, University of Iowa, 1 308 MEB, Iowa City, IA 52242 1000, USA
    Arch Clin Neuropsychol 24:201-7. 2009
    ..It is hoped that the current information will encourage individuals at all levels to become involved in peer-reviewing for neuropsychology journals...
  6. ncbi Walking speed and global cognition: results from the OKLAHOMA Study
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, IA 52242 1000, USA
    Neuropsychol Dev Cogn B Aging Neuropsychol Cogn 15:31-9. 2008
    ..In these older adults, global cognition was related to walking speed...
  7. ncbi Examining the repeatable battery for the assessment of neuropsychological status: factor analytic studies in an elderly sample
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, IA 52242 1000, USA
    Am J Geriatr Psychiatry 14:976-9. 2006
    ....
  8. pmc Practice effects in the prediction of long-term cognitive outcome in three patient samples: a novel prognostic index
    Kevin Duff
    University of Iowa, Department of Psychiatry, MEB 1 308, Iowa City, IA 52242 1000, United States
    Arch Clin Neuropsychol 22:15-24. 2007
    ..Additionally, this prognostic index could be used to offer interventions to patients who are in the earliest stages of progressive neurodegenerative disorders...
  9. pmc Cognitive deficits in Huntington's disease on the Repeatable Battery for the Assessment of Neuropsychological Status
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, IA 52242 1000, USA
    J Clin Exp Neuropsychol 32:231-8. 2010
    ..Although additional research is needed, the current study supports the clinical applicability of the RBANS in patients with HD...
  10. ncbi Pre- and post-right middle cerebral artery stroke in a young adult: a case study examining the sensitivity of the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS)
    Kevin Duff
    University of Iowa, Department of Psychiatry, MEB 1 308, Iowa City, IA 52242 1000, USA
    Appl Neuropsychol 13:194-200. 2006
    ..Line Orientation fell from normal to defective levels; these findings were associated with decline in related standard neuropsychological measures...
  11. ncbi Medical burden and cognition in older patients in primary care: selective deficits in attention
    Kevin Duff
    University of Iowa, Department of Psychiatry, MEB 1 308, Iowa City, IA 52242 1000, USA
    Arch Clin Neuropsychol 22:569-75. 2007
    ..These findings could have clinical implications, as poorer attention, especially in patients with multiple medical problems, could lead to poorer medical compliance and worse outcomes...
  12. ncbi Predicting cognitive change across 3 years in community-dwelling elders
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, IA 52242 1000, USA
    Clin Neuropsychol 22:651-61. 2008
    ..A case example is presented that illustrates how the algorithms can be used clinically...
  13. pmc Utility of the RBANS in detecting cognitive impairment associated with Alzheimer's disease: sensitivity, specificity, and positive and negative predictive powers
    Kevin Duff
    Roy J and Lucille A Carver College of Medicine, Department of Psychiatry, University of Iowa, 1 308 MEB, Iowa City, IA 52242 1000, USA
    Arch Clin Neuropsychol 23:603-12. 2008
    ..96 and 0.98, respectively). Results suggest that RBANS scores yield excellent estimates of diagnostic accuracy and that the RBANS is a useful screening tool in detection of cognitive deficits associated with AD...
  14. ncbi Age- and education-corrected independent normative data for the RBANS in a community dwelling elderly sample
    Kevin Duff
    Department of Psychiatry and Behavioral Sciences, University at Oklahoma Health Sciences Center, Oklahoma City, OK, USA
    Clin Neuropsychol 17:351-66. 2003
    ..Practitioners and researchers who elect to use the current normative data are encouraged to consider the similarities and differences between the present sample and their individual patients or research participants...
  15. doi Normative data on and psychometric properties of Verbal and Visual Indexes of the RBANS in older adults
    Kevin Duff
    University of Iowa, Department of Psychiatry, Iowa City, IA 52242 1000, USA
    Clin Neuropsychol 23:39-50. 2009
    ..These data might allow clinicians and researchers to better assess laterality effects of brain dysfunction when using the RBANS, although clinical validation is needed...
  16. ncbi Predicting change with the RBANS in a community dwelling elderly sample
    Kevin Duff
    University of Iowa, Department of Psychiatry, Iowa City, 52242 1000, USA
    J Int Neuropsychol Soc 10:828-34. 2004
    ..A case example is presented that illustrates how the algorithms can be used clinically...
  17. ncbi Normative and retest data on the RBANS cortical/subcortical index in older adults
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, IA 52242 1000, USA
    J Clin Exp Neuropsychol 29:854-9. 2007
    ..58-.61). Although the utility of this index needs to be investigated in clinical samples, practitioners should use caution when interpreting these types of indicator as pathognomonic for the presence of disease...
  18. ncbi Test-retest stability and practice effects of the RBANS in a community dwelling elderly sample
    Kevin Duff
    University of Iowa, Department of Psychiatry, Iowa City, Iowa 52242, USA
    J Clin Exp Neuropsychol 27:565-75. 2005
    ..A case example is provided that demonstrates the use of the current findings in conjunction with existing change formulas...
  19. ncbi Base rates of longitudinal RBANS discrepancies at one- and two-year intervals in community-dwelling older adults
    Doyle E Patton
    University at Oklahoma Health Sciences Center, Department of Psychiatry and Behavioral Sciences, Oklahoma City, OK, USA
    Clin Neuropsychol 19:27-44. 2005
    ..These data may be helpful in clinical practice by assisting the clinician in determining the clinical significance of score changes...
  20. ncbi Donepezil effects on cerebral blood flow in older adults with mild cognitive deficits
    Xiying Chen
    Department of Radiology, The Roy J and Lucille A Carver College of Medicine, 500 Newton Rd, Iowa City, IA 52242 1000, USA
    J Neuropsychiatry Clin Neurosci 18:178-85. 2006
    ..These findings suggest that donepezil treatment may be associated with a relative maintenance of CBF and improved list-learning...
  21. ncbi Performance of cognitively normal African Americans on the RBANS in community dwelling older adults
    Doyle E Patton
    Department of Psychiatry and Behavioral Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73190, USA
    Clin Neuropsychol 17:515-30. 2003
    ..Although preliminary, it is hoped that data presented will offer the practitioner assistance with clinical diagnosis and decision-making in a manner that will help minimize diagnostic errors...
  22. doi Cognitive functioning predicts survival in the elderly
    Kevin Duff
    University of Iowa, Iowa City, IA, USA
    J Clin Exp Neuropsychol 31:90-5. 2009
    ..Although the mechanism of poorer cognition and impending death remains unclear, some possibilities are discussed (e.g., brain dysfunction, poor medical compliance, impaired cellular immunity)...
  23. pmc Earliest functional declines in Huntington disease
    Leigh J Beglinger
    Department of Psychiatry, The University of Iowa, Iowa City, IA, USA
    Psychiatry Res 178:414-8. 2010
    ..These are also important areas for clinical monitoring and treatment planning as up to 65% experienced loss in at least one area prior to diagnosis...
  24. pmc "Frontal" behaviors before the diagnosis of Huntington's disease and their relationship to markers of disease progression: evidence of early lack of awareness
    Kevin Duff
    Department of Psychiatry, University of Iowa College of Medicine, Iowa City, USA
    J Neuropsychiatry Clin Neurosci 22:196-207. 2010
    ..Participant/companion discrepancies, especially closest to Huntington's disease diagnosis, might suggest early lack of awareness in these individuals...
  25. ncbi Global cerebral blood flow in relation to cognitive performance and reserve in subjects with mild memory deficits
    Laura L Boles Ponto
    Positron Emission Tomography Imaging Center, Department of Radiology, Roy J and Lucille A Carver College of Medicine, University of Iowa, Iowa, IA 52242, USA
    Mol Imaging Biol 8:363-72. 2006
    ..This study was undertaken to explore the mechanisms underlying cognitive reserve in subjects with mild memory deficits by using positron emission tomography (PET)...
  26. doi Premorbid intellect and current RBANS performance: discrepancy scores in three geriatric samples
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, Iowa 52242, USA
    Appl Neuropsychol 15:241-9. 2008
    ....
  27. pmc Evaluation of older persons with mild cognitive deficits: potential utility of magnetic resonance imaging
    Susan K Schultz
    University of Iowa Department of Psychiatry, Carver College of Medicine, Iowa City, IA 52242 1000, USA
    Ann Clin Psychiatry 20:204-8. 2008
    ..The objective was to examine cortical volumes in relation to cognitive performance among patients who do not have dementia, but who do have mild cognitive deficits...
  28. pmc The Indiana faces in places test: preliminary findings on a new visuospatial memory test in patients with mild cognitive impairment
    Leigh J Beglinger
    Department of Psychiatry, University of Iowa College of Medicine, Iowa City, IA 52242 1000, USA
    Arch Clin Neuropsychol 24:607-18. 2009
    ..64 and 0.66). Preliminary psychometric analyses support further study of the IFIPT. The measure showed evidence of clinical utility by demonstrating group differences between this sample of healthy adults and those with MCI...
  29. pmc Randomized controlled trial of atomoxetine for cognitive dysfunction in early Huntington disease
    Leigh J Beglinger
    Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA 52242 1000, USA
    J Clin Psychopharmacol 29:484-7. 2009
    ..Atomoxetine is a norepinephrine reuptake inhibitor approved for treatment of attention-deficit/hyperactivity disorder...
  30. pmc Cognitive change in patients with Huntington disease on the Repeatable Battery for the Assessment of Neuropsychological Status
    Leigh J Beglinger
    Department of Psychiatry, University of Iowa, Iowa City, IA 52242 1000, USA
    J Clin Exp Neuropsychol 32:573-8. 2010
    ..The RBANS provided additional information about other cognitive domains affected (e.g., memory) and may be a useful measure for tracking longitudinal change...
  31. pmc Self-paced timing detects and tracks change in prodromal Huntington disease
    Kelly C Rowe
    Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
    Neuropsychology 24:435-42. 2010
    ..This study compares self-paced timing performance (cross-sectionally and longitudinally) between participants with prodromal Huntington's disease (pr-HD) and a comparison group of gene non-expanded participants from affected families (NC)...
  32. pmc Challenges assessing clinical endpoints in early Huntington disease
    Jane S Paulsen
    Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa 52242 1000, USA
    Mov Disord 25:2595-603. 2010
    ..We conclude that future clinical trials designed for very early disease will require the development of new and more sensitive measures of real-life function...
  33. pmc Obsessive and compulsive symptoms in prediagnosed Huntington's disease
    Leigh J Beglinger
    University of Iowa, Department of Psychiatry, MEB 1 321, Iowa City, IA 52242 1000, USA
    J Clin Psychiatry 69:1758-65. 2008
    ..Although psychiatric symptoms have been reported in individuals with the HD gene expansion prior to clinical diagnosis (pre-HD), little is known about OCS in this phase of disease...
  34. ncbi The relationship between executive functioning and verbal and visual learning and memory
    Kevin Duff
    Department of Psychiatry, University of Iowa Hospitals and Clinics 200 Hawkins Drive, Iowa City, Iowa 52242, USA
    Arch Clin Neuropsychol 20:111-22. 2005
    ..Although causality cannot be inferred, a clear and robust relationship between executive functioning and memory is evident, and clinicians should consider this overlap when interpreting poor performance among these two domains...
  35. pmc Validation of the modified telephone interview for cognitive status in amnestic mild cognitive impairment and intact elders
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, IA 52242 1000, USA
    Alzheimer Dis Assoc Disord 23:38-43. 2009
    ..Overall, these results provide additional validation of the mTICS as a valuable screening instrument for cognition in individuals with milder cognitive impairments...
  36. pmc Cognitive and daily functioning in older adults with vegetative symptoms of depression
    Sergio Paradiso
    Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA, USA
    Int J Geriatr Psychiatry 25:569-77. 2010
    ..The goal of this study was to examine neurocognitive and daily functioning of elderly patients showing exclusively VS in comparison with patients presenting with VS and dysphoria...
  37. ncbi Psychiatric symptoms in Huntington's disease before diagnosis: the predict-HD study
    Kevin Duff
    Department of Psychiatry, University of Iowa, Iowa City, Iowa 52242 1000, USA
    Biol Psychiatry 62:1341-6. 2007
    ..Psychiatric disturbances are relatively common in manifest Huntington's disease (HD), but less is known about these symptoms in the earliest phase of the illness...
  38. ncbi Neuropsychological and psychiatric functioning pre- and posthematopoietic stem cell transplantation in adult cancer patients: a preliminary study
    Leigh J Beglinger
    Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa 52242 1000, USA
    J Int Neuropsychol Soc 13:172-7. 2007
    ..Education about these possible pretransplant sequelae and the potential for rebound may be helpful to patients and families as they prepare for this treatment and the recovery period...
  39. ncbi White matter volume and cognitive dysfunction in early Huntington's disease
    Leigh J Beglinger
    Department of Psychiatry, University of Iowa Roy and Lucille Carver College of Medicine, Iowa City, Iowa 52242, USA
    Cogn Behav Neurol 18:102-7. 2005
    ..Fewer studies have examined other cerebral structures in early HD and potential associations with cognition...
  40. ncbi Incidence of delirium and associated mortality in hematopoietic stem cell transplantation patients
    Leigh J Beglinger
    Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa
    Biol Blood Marrow Transplant 12:928-35. 2006
    ..Studies to determine the factors that connect delerium soon after transplantation to mortality are highly warranted...
  41. ncbi Probability of obsessive and compulsive symptoms in Huntington's disease
    Leigh J Beglinger
    Department of Psychiatry, University of Iowa, Iowa City, Iowa 52242 1000, USA
    Biol Psychiatry 61:415-8. 2007
    ..The purpose of this study was to examine the probability of obsessive and compulsive (OC) symptoms across stages of Huntington's disease (HD) with both cross sectional and longitudinal data...
  42. ncbi Practice effects and the use of alternate forms in serial neuropsychological testing
    Leigh J Beglinger
    Department of Psychiatry, University of Iowa College of Medicine, 1 321 MEB, 200 Hawkins Dr, Iowa City, Iowa 52242, USA
    Arch Clin Neuropsychol 20:517-29. 2005
    ..Alternate forms and baseline practice sessions may help control early, rapid improvements in clinical trials...
  43. pmc Using a brief intervention to improve decisional capacity in schizophrenia research
    David J Moser
    Department of Psychiatry MEB 1 328, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
    Schizophr Bull 32:116-20. 2006
    ..The use of such interventions will enable a larger number of people with schizophrenia to make informed decisions regarding research participation...
  44. ncbi An evaluation of the clinical utility of the OPIE-3 as an estimate of premorbid WAIS-III FSIQ
    Mike R Schoenberg
    University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
    Clin Neuropsychol 17:308-21. 2003
    ..Recommendations in the application of the OPIE-3 are made and future research is proposed...
  45. ncbi Estimation of WAIS-III intelligence from combined performance and demographic variables: development of the OPIE-3
    Mike R Schoenberg
    University of Oklahoma Health Sciences Center, Department of Psychiatry and Behavioral Sciences, Oklahoma City, OK 73190, USA
    Clin Neuropsychol 16:426-37. 2002
    ..The formulas for estimating premorbid FSIQ were highly significant and accurate in predicting FSIQ scores of participants in the WAIS-III normative sample...
  46. ncbi RBANS index discrepancies: base rates for older adults
    Doyle E Patton
    University at Oklahoma Health Sciences Center, Department of Psychiatry and Behavioral Sciences, Oklahoma City, OK, USA
    Arch Clin Neuropsychol 21:151-60. 2006
    ..Similarly, these data highlight the mediating effects of the global level of cognitive functioning on discrepancy scores...
  47. doi Predictors of neuropsychological recovery in treatment for anorexia nervosa
    Ekaterina Keifer
    Department of Counseling Psychology, University of Iowa, Iowa City, Iowa, USA
    Eat Disord 18:302-17. 2010
    ..Information about cognitive reserve and AN subtype may provide clinicians with valuable prognostic information and help guide treatment...
  48. pmc CAG-repeat length and the age of onset in Huntington disease (HD): a review and validation study of statistical approaches
    Douglas R Langbehn
    Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA 52242 1000, USA
    Am J Med Genet B Neuropsychiatr Genet 153:397-408. 2010
    ..The Langbehn et al. model appears accurate enough to have substantial utility in various research contexts. We also emphasize remaining caveats, many of which are relevant for any direct application to genetic counseling...
  49. ncbi Assessing executive functions in traumatic brain injury: an exploratory study of the Executive Interview
    Eric B Larson
    Feinberg School of Medicine, Northwestern University, USA
    Percept Mot Skills 106:725-36. 2008
    ..Further study of the EXIT 25 is justified with a larger sample of inpatients, although caution should be exercised when using the EXIT 25 in mildly impaired outpatients...

Research Grants3

  1. Predicting Decline in Mild Cognitive Impairment
    Kevin Duff; Fiscal Year: 2006
    ..abstract_text> ..
  2. Predicting dementia with practice effects
    Kevin Duff; Fiscal Year: 2007
    ..Finally, the availability of a brief, non-invasive, and cost effective marker of disease progression would allow for more efficient and better powered clinical trials. ..