Justin Karr

jeka230's picture
  • Assistant Professor
  • Psychology
  • Clinical Psychology
012D Kastle Hall
859-257-2258
Research Interests:
Education
Postdoctoral Fellowship, Harvard Medical School, Spaulding Rehabilitation Hospital, and Massachusetts General Hospital (2018-2020)
Ph.D., University of Victoria (2018)
Doctoral Internship, Veterans Affairs Puget Sound Health Care System, Seattle Division (2017-2018)
M.Sc., University of Victoria (2013)
B.S., Western Oregon University (2011)
Biography

I began as an Assistant Professor of Clinical Neuropsychology in the Department of Psychology at the University of Kentucky in August 2020. Originally from Portland, Oregon, I completed my undergraduate studies in psychology at Western Oregon University and moved north to British Columbia, Canada for my graduate studies. I completed my Ph.D. in Clinical Psychology with a Neuropsychology Specialization at the University of Victoria in 2018, where my doctoral studies and research were supported by the Vanier Scholarship. I completed my clinical internship year at the Seattle VA hospital, and my postdoctoral training within the Harvard Medical School system at Spaulding Rehabilitation Hospital and Massachusetts General Hospital.

My research to date has focused on neuropsychological assessment methods, cross-cultural validation of psychological tests, cognitive aging, and the psychological and cognitive sequelae of brain injury. I have been privileged, in my short career, to work with researchers in the United States, Canada, Colombia, Ghana, Taiwan, Finland, Norway, and Australia, and I am always interested in working with new collaborators. Please reach out if we have shared interests.

In my non-academic life, I enjoy travelling to new places, trying new restaurants, running, golfing (poorly), and exploring the great outdoors. Having lived in Portland, Seattle, Victoria, BC, and Boston, I have, regretfully, become a coffee snob, although Tim Hortons (Canadian chain for those unfamiliar) will always have a special place in my heart.

I am currently considering applicants for graduate training in neuropsychology for the 2021/2022 academic year. My philiosophy toward student mentorship is one of respect, collegiality, and support, as you develop towards your professional goals. Please feel free to send me an email with any questions and I look forward to reviewing your application.

PubMed Publications*: 
  • Iverson, GL ;Jones, PJ ;Karr, JE ;Maxwell, B ;Zafonte, R ;Berkner, PD ;McNally, RJ "Network Structure of Physical, Cognitive, and Emotional Symptoms at Preseason Baseline in Student Athletes with Attention-Deficit/ Hyperactivity Disorder." Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists (2020): Details. Full text
  • Cook, NE ;Iaccarino, MA ;Karr, JE ;Iverson, GL "Attention-Deficit/Hyperactivity Disorder and Outcome After Concussion: A Systematic Review." Journal of developmental and behavioral pediatrics : JDBP 41, 7 (2020): 571-582. Details. Full text
  • Stenberg, J ;Karr, JE ;Terry, DP ;Håberg, AK ;Vik, A ;Skandsen, T ;Iverson, GL "Change in self-reported cognitive symptoms after mild traumatic brain injury is associated with changes in emotional and somatic symptoms and not changes in cognitive performance." Neuropsychology 34, 5 (2020): 560-568. Details. Full text
  • Karlsen, RH ;Karr, JE ;Saksvik, SB ;Lundervold, AJ ;Hjemdal, O ;Olsen, A ;Iverson, GL ;Skandsen, T "Examining 3-month test-retest reliability and reliable change using the Cambridge Neuropsychological Test Automated Battery." Applied neuropsychology. Adult (2020): 1-9. Details. Full text
  • Iverson, GL ;Karr, JE ;Terry, DP ;Garcia-Barrera, MA ;Holdnack, JA ;Ivins, BJ ;Silverberg, ND "Developing an Executive Functioning Composite Score for Research and Clinical Trials." Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists 35, 3 (2020): 312-325. Details. Full text
  • Karr, JE ;Iverson, GL ;Huang, SJ ;Silverberg, ND ;Yang, CC "Perceived Change in Physical, Cognitive, and Emotional Symptoms after Mild Traumatic Brain Injury in Patients with Pre-Injury Anxiety or Depression." Journal of neurotrauma 37, 10 (2020): 1183-1189. Details. Full text
  • Karr, JE ;Garcia-Barrera, MA ;Holdnack, JA ;Iverson, GL "The Other Side of the Bell Curve: Multivariate Base Rates of High Scores on the Delis-Kaplan Executive Function System." Journal of the International Neuropsychological Society : JINS 26, 4 (2020): 382-393. Details. Full text
  • Karr, JE ;Luoto, TM ;Gilman, IG ;Berghem, K ;Kotilainen, AK ;Iverson, GL "Age, symptoms, and functional outcome after mild traumatic brain injury." Acta neurologica Scandinavica 141, 2 (2020): 183-190. Details. Full text
  • Karr, JE ;Iverson, GL "Interpreting high scores on the NIH Toolbox Cognition Battery: Potential utility for detecting cognitive decline in high-functioning individuals." Neuropsychology (2020): Details.
  • Karr, JE ;Rau, HK ;Shofer, JB ;Hendrickson, RC ;Peskind, ER ;Pagulayan, KF "Variables associated with subjective cognitive change among Iraq and Afghanistan war Veterans with blast-related mild traumatic brain injury." Journal of clinical and experimental neuropsychology 41, 7 (2019): 680-693. Details.
  • Iverson, GL ;Ivins, BJ ;Karr, JE ;Crane, PK ;Lange, RT ;Cole, WR ;Silverberg, ND "Comparing Composite Scores for the ANAM4 TBI-MIL for Research in Mild Traumatic Brain Injury." Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists 35, 1 (2019): 56-69. Details. Full text
  • Cook, NE ;Karr, JE ;Brooks, BL ;Garcia-Barrera, MA ;Holdnack, JA ;Iverson, GL "Multivariate base rates for the assessment of executive functioning among children and adolescents." Child neuropsychology : a journal on normal and abnormal development in childhood and adolescence 25, 6 (2019): 836-858. Details. Full text
  • Karr, JE ;Hofer, SM ;Iverson, GL ;Garcia-Barrera, MA "Examining the Latent Structure of the Delis-Kaplan Executive Function System." Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists 34, 3 (2019): 381-394. Details. Full text
  • Karr, JE ;Areshenkoff, CN ;Rast, P ;Hofer, SM ;Iverson, GL ;Garcia-Barrera, MA "The unity and diversity of executive functions: A systematic review and re-analysis of latent variable studies." Psychological bulletin 144, 11 (2018): 1147-1185. Details. Full text
  • Karr, JE ;Graham, RB ;Hofer, SM ;Muniz-Terrera, G "When does cognitive decline begin? A systematic review of change point studies on accelerated decline in cognitive and neurological outcomes preceding mild cognitive impairment, dementia, and death." Psychology and aging 33, 2 (2018): 195-218. Details. Full text
  • Karr, JE ;Kibby, MY ;Jagger-Rickels, AC ;Garcia-Barrera, MA "Sensitivity and Specificity of an Executive Function Screener at Identifying Children With ADHD and Reading Disability." Journal of attention disorders (2018): 1087054718763878. Details. Full text
  • Iverson, GL ;Terry, DP ;Karr, JE ;Panenka, WJ ;Silverberg, ND "Perceived Injustice and Its Correlates after Mild Traumatic Brain Injury." Journal of neurotrauma 35, 10 (2018): 1156-1166. Details. Full text
  • Karr, JE ;Garcia-Barrera, MA ;Holdnack, JA ;Iverson, GL "Advanced clinical interpretation of the Delis-Kaplan Executive Function System: multivariate base rates of low scores." The Clinical neuropsychologist 32, 1 (2018): 42-53. Details.
  • Smart, CM ;Karr, JE ;Areshenkoff, CN ;Rabin, LA ;Hudon, C ;Gates, N ;Ali, JI ;Arenaza-Urquijo, EM ;Buckley, RF ;Chetelat, G ;Hampel, H ;Jessen, F ;Marchant, NL ;Sikkes, SAM ;Tales, A ;Van der Flier, WM ;Wesselman, L ;Working, Group. and the Su "Non-Pharmacologic Interventions for Older Adults with Subjective Cognitive Decline: Systematic Review, Meta-Analysis, and Preliminary Recommendations." Neuropsychology review 27, 3 (2017): 245-257. Details. Full text
  • Karr, JE ;Garcia-Barrera, MA "The assessment of executive functions using the BASC-2." Psychological assessment 29, 9 (2017): 1182-1187. Details. Full text
  • Garcia-Barrera, MA ;Karr, JE ;Trujillo-Orrego, N ;Trujillo-Orrego, S ;Pineda, DA "Evaluating empathy in Colombian ex-combatants: Examination of the internal structure of the Interpersonal Reactivity Index (IRI) in Spanish." Psychological assessment 29, 1 (2017): 116-122. Details. Full text
  • Karr, JE ;Garcia-Barrera, MA ;Holdnack, JA ;Iverson, GL "Using Multivariate Base Rates to Interpret Low Scores on an Abbreviated Battery of the Delis-Kaplan Executive Function System." Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists 32, 3 (2017): 297-305. Details. Full text
  • Garcia-Barrera, MA ;Karr, JE ;Duran, V ;Direnfeld, E ;Pineda, DA "Cross-cultural validation of a behavioral screener for executive functions: Guidelines for clinical use among Colombian children with and without ADHD." Psychological assessment 27, 4 (2015): 1349-63. Details. Full text
  • Karr, JE ;Areshenkoff, CN ;Garcia-Barrera, MA "The neuropsychological outcomes of concussion: a systematic review of meta-analyses on the cognitive sequelae of mild traumatic brain injury." Neuropsychology 28, 3 (2014): 321-36. Details. Full text
  • Karr, JE ;Areshenkoff, CN ;Duggan, EC ;Garcia-Barrera, MA "Blast-related mild traumatic brain injury: a Bayesian random-effects meta-analysis on the cognitive outcomes of concussion among military personnel." Neuropsychology review 24, 4 (2014): 428-44. Details. Full text
  • Karr, JE ;Areshenkoff, CN ;Rast, P ;Garcia-Barrera, MA "An empirical comparison of the therapeutic benefits of physical exercise and cognitive training on the executive functions of older adults: a meta-analysis of controlled trials." Neuropsychology 28, 6 (2014): 829-45. Details. Full text
  • Garcia-Barrera, MA ;Karr, JE ;Kamphaus, RW "Longitudinal applications of a behavioral screener of executive functioning: assessing factorial invariance and exploring latent growth." Psychological assessment 25, 4 (2013): 1300-13. Details. Full text
  • Walters, JK ;Olson, R ;Karr, J ;Zoller, E ;Cain, D ;Douglas, JP "Elevated occupational transportation fatalities among older workers in Oregon: an empirical investigation." Accident; analysis and prevention 53, (2013): 28-38. Details. Full text
  • Karr, JE ;Grindstaff, TR ;Alexander, JE "Omega-3 polyunsaturated fatty acids and cognition in a college-aged population." Experimental and clinical psychopharmacology 20, 3 (2012): 236-42. Details. Full text
  • Karr, JE ;Alexander, JE ;Winningham, RG "Omega-3 polyunsaturated fatty acids and cognition throughout the lifespan: a review." Nutritional neuroscience 14, 5 (2011): 216-25. Details. Full text
  • Iverson, GL ;Karr, JE ;Gardner, AJ ;Silverberg, ND ;Terry, DP "Results of scoping review do not support mild traumatic brain injury being associated with a high incidence of chronic cognitive impairment: Commentary on McInnes et al. 2017." PloS one 14, 9 (0): e0218997. Details. Full text
  • Iverson, GL ;Jones, PJ ;Karr, JE ;Maxwell, B ;Zafonte, R ;Berkner, PD ;McNally, RJ "Architecture of Physical, Cognitive, and Emotional Symptoms at Preseason Baseline in Adolescent Student Athletes With a History of Mental Health Problems." Frontiers in neurology 11, (0): 175. Details. Full text
  • Stenberg, J ;Karr, JE ;Terry, DP ;Saksvik, SB ;Vik, A ;Skandsen, T ;Silverberg, ND ;Iverson, GL "Developing Cognition Endpoints for the CENTER-TBI Neuropsychological Test Battery." Frontiers in neurology 11, (0): 670. Details. Full text
  • Karr, JE ;Iverson, GL ;Berghem, K ;Kotilainen, AK ;Terry, DP ;Luoto, TM "Complicated mild traumatic brain injury in older adults: Post-concussion symptoms and functional outcome at one week post injury." Brain injury 34, 1 (0): 26-33. Details. Full text
  • Karr, JE ;Garcia-Barrera, MA ;Areshenkoff, CN "Executive functions and intraindividual variability following concussion." Journal of clinical and experimental neuropsychology 36, 1 (0): 15-31. Details.
* Publications are automatically pulled from pubmed.gov based on a user-specific query. Results may include incorrect citations. See: Tutorial on improving PubMed results.
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