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Michael Thomas

TitleAssistant Adjunct Professor
InstitutionUniversity of California San Diego
DepartmentPsychiatry
Address9500 Gilman Drive #0738
La Jolla CA 92093
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    Biography

    Michael Thomas received his Ph.D. in Clinical Psychology from Arizona State University in 2011. He completed predoctoral and postdoctoral training at the University of California, San Diego before joining the Department of Psychiatry as an Assistant Research Scientist in 2014. Dr. Thomas’ research is funded by the National Institute of Mental Health and combines advanced psychometric and neuroimaging methodologies in the study of cognitive psychopathology. He is a licensed clinical psychologist and has maintained a volunteer appointment at the VA San Diego Healthcare System since 2012. Dr. Thomas is a member of the American Psychological Association and a consulting editor for Psychological Assessment.

    Research Interests

    Dr. Thomas’ research interests include psychometrics, neuroimaging, and schizophrenia. He uses latent variable modeling—particularly factor analytic, item response theory, and Bayesian approaches—to develop, evaluate, and refine clinical and neuropsychological measures. Dr. Thomas is particularly interested in the development of computerized adaptive tests. His research is supported by the National Institute of Mental Health; this includes a 5-year Career Development Award that combines advanced psychometric and neuroimaging (functional MRI) methodologies to refine brain-behavior models of cognitive deficits in schizophrenia.

    Clinical Focus

    Dr. Thomas’ clinical interests include personality and cognitive assessment, especially in populations with psychosis or dementia. He has worked in outpatient, inpatient, and forensic settings, as well as provided counseling to clients diagnosed with a wide range of psychiatric disorders.


    Collapse Research 
    Collapse Research Activities and Funding
    Neuroimaging and Neurocognitive Computerized Adaptive Testing in Schizophrenia
    NIH/NIMH K23MH102420Sep 1, 2014 - Jun 30, 2019
    Role: Principal Investigator

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    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Paolillo EW, McKenna BS, Nowinski CJ, Thomas M, Malcarne VL, Heaton RK. NIH Toolbox® Emotion Batteries for Children: Factor-Based Composites and Norms. Assessment. 2018 Apr 01; 1073191118766396. PMID: 29618218.
      View in: PubMed
    2. Thomas M, Brown GG, Gur RC, Moore TM, Patt VM, Risbrough VB, Baker DG. A signal detection-item response theory model for evaluating neuropsychological measures. J Clin Exp Neuropsychol. 2018 Feb 05; 1-16. PMID: 29402152.
      View in: PubMed
    3. Patt VM, Brown GG, Thomas M, Roesch SC, Taylor MJ, Heaton RK. Factor Analysis of an Expanded Halstead-Reitan Battery and the Structure of Neurocognition. Arch Clin Neuropsychol. 2018 Feb 01; 33(1):79-101. PMID: 28505273.
      View in: PubMed
    4. Joshi YB, Breitenstein B, Tarasenko M, Thomas M, Chang WL, Sprock J, Sharp RF, Light GA. Mismatch negativity impairment is associated with deficits in identifying real-world environmental sounds in schizophrenia. Schizophr Res. 2018 Jan; 191:5-9. PMID: 28927552.
      View in: PubMed
    5. Thomas M, Bangen KJ, Palmer BW, Sirkin Martin A, Avanzino JA, Depp CA, Glorioso D, Daly RE, Jeste DV. A new scale for assessing wisdom based on common domains and a neurobiological model: The San Diego Wisdom Scale (SD-WISE). J Psychiatr Res. 2017 Sep 08. PMID: 28935171.
      View in: PubMed
    6. Bismark AW, Thomas M, Tarasenko M, Shiluk AL, Rackelmann SY, Young JW, Light GA. Relationship between effortful motivation and neurocognition in schizophrenia. Schizophr Res. 2018 Mar; 193:69-76. PMID: 28673753.
      View in: PubMed
    7. Brown GG, Thomas M, Patt V. Parametric model measurement: reframing traditional measurement ideas in neuropsychological practice and research. Clin Neuropsychol. 2017 Aug - Oct; 31(6-7):1047-1072. PMID: 28617067.
      View in: PubMed
    8. Swerdlow NR, Light GA, Thomas M, Sprock J, Calkins ME, Green MF, Greenwood TA, Gur RE, Gur RC, Lazzeroni LC, Nuechterlein KH, Radant AD, Seidman LJ, Siever LJ, Silverman JM, Stone WS, Sugar CA, Tsuang DW, Tsuang MT, Turetsky BI, Braff DL. Deficient prepulse inhibition in schizophrenia in a multi-site cohort: Internal replication and extension. Schizophr Res. 2017 May 23. PMID: 28549722.
      View in: PubMed
    9. Stein MB, Chen CY, Jain S, Jensen KP, He F, Heeringa SG, Kessler RC, Maihofer A, Nock MK, Ripke S, Sun X, Thomas M, Ursano RJ, Smoller JW, Gelernter J. Genetic risk variants for social anxiety. Am J Med Genet B Neuropsychiatr Genet. 2017 06; 174(4):470-482. PMID: 28512750.
      View in: PubMed
    10. Thomas M, Patt VM, Bismark A, Sprock J, Tarasenko M, Light GA, Brown GG. Evidence of systematic attenuation in the measurement of cognitive deficits in schizophrenia. J Abnorm Psychol. 2017 Apr; 126(3):312-324. PMID: 28277736.
      View in: PubMed
    11. Stein MB, Chen CY, Jain S, Jensen KP, He F, Heeringa SG, Kessler RC, Maihofer A, Nock MK, Ripke S, Sun X, Thomas M, Ursano RJ, Smoller JW, Gelernter J. Genetic risk variants for social anxiety. Am J Med Genet B Neuropsychiatr Genet. 2017 Mar; 174(2):120-131. PMID: 28224735.
      View in: PubMed
    12. Thomas M, Green MF, Hellemann G, Sugar CA, Tarasenko M, Calkins ME, Greenwood TA, Gur RE, Gur RC, Lazzeroni LC, Nuechterlein KH, Radant AD, Seidman LJ, Shiluk AL, Siever LJ, Silverman JM, Sprock J, Stone WS, Swerdlow NR, Tsuang DW, Tsuang MT, Turetsky BI, Braff DL, Light GA. Modeling Deficits From Early Auditory Information Processing to Psychosocial Functioning in Schizophrenia. JAMA Psychiatry. 2017 Jan 01; 74(1):37-46. PMID: 27926742.
      View in: PubMed
    13. Moore TM, Gur RC, Thomas M, Brown GG, Nock MK, Savitt AP, Keilp JG, Heeringa S, Ursano RJ, Stein MB. Development, Administration, and Structural Validity of a Brief, Computerized Neurocognitive Battery. Assessment. 2017 Jan 01; 1073191116689820. PMID: 28135828.
      View in: PubMed
    14. Thomas M, Kaufmann CN, Palmer BW, Depp CA, Martin AS, Glorioso DK, Thompson WK, Jeste DV. Paradoxical Trend for Improvement in Mental Health With Aging: A Community-Based Study of 1,546 Adults Aged 21-100 Years. J Clin Psychiatry. 2016 Aug; 77(8):e1019-25. PMID: 27561149.
      View in: PubMed
    15. Stein MB, Chen CY, Ursano RJ, Cai T, Gelernter J, Heeringa SG, Jain S, Jensen KP, Maihofer AX, Mitchell C, Nievergelt CM, Nock MK, Neale BM, Polimanti R, Ripke S, Sun X, Thomas M, Wang Q, Ware EB, Borja S, Kessler RC, Smoller JW. Genome-wide Association Studies of Posttraumatic Stress Disorder in 2 Cohorts of US Army Soldiers. JAMA Psychiatry. 2016 Jul 01; 73(7):695-704. PMID: 27167565.
      View in: PubMed
    16. MacDonald K, Thomas M, Sciolla AF, Schneider B, Pappas K, Bleijenberg G, Bohus M, Bekh B, Carpenter L, Carr A, Dannlowski U, Dorahy M, Fahlke C, Finzi-Dottan R, Karu T, Gerdner A, Glaesmer H, Grabe HJ, Heins M, Kenny DT, Kim D, Knoop H, Lobbestael J, Lochner C, Lauritzen G, Ravndal E, Riggs S, Sar V, Schäfer I, Schlosser N, Schwandt ML, Stein MB, Subic-Wrana C, Vogel M, Wingenfeld K. Minimization of Childhood Maltreatment Is Common and Consequential: Results from a Large, Multinational Sample Using the Childhood Trauma Questionnaire. PLoS One. 2016; 11(1):e0146058. PMID: 26815788; PMCID: PMC4729672.
    17. MacDonald K, Lamb K, Thomas M, Khentigan W. Buprenorphine Maintenance Treatment of Opiate Dependence: Correlations Between Prescriber Beliefs and Practices. Subst Use Misuse. 2016 Jan 02; 51(1):85-90. PMID: 26771870.
      View in: PubMed
    18. Brown GG, Patt VM, Sawyer J, Thomas M. Double dissociation of a latent working memory process. J Clin Exp Neuropsychol. 2016; 38(1):59-75. PMID: 26618889.
      View in: PubMed
    19. Stein MB, Kessler RC, Heeringa SG, Jain S, Campbell-Sills L, Colpe LJ, Fullerton CS, Nock MK, Sampson NA, Schoenbaum M, Sun X, Thomas M, Ursano RJ. Prospective longitudinal evaluation of the effect of deployment-acquired traumatic brain injury on posttraumatic stress and related disorders: results from the Army Study to Assess Risk and Resilience in Servicemembers (Army STARRS). Am J Psychiatry. 2015 Nov 01; 172(11):1101-11. PMID: 26337036.
      View in: PubMed
    20. MacDonald K, Sciolla AF, Folsom D, Bazzo D, Searles C, Moutier C, Thomas M, Borton K, Norcross B. Individual risk factors for physician boundary violations: the role of attachment style, childhood trauma and maladaptive beliefs. Gen Hosp Psychiatry. 2015 Sep-Oct; 37(5):489-96. PMID: 26554082.
      View in: PubMed
    21. Zahodne LB, Meyer OL, Choi E, Thomas M, Willis SL, Marsiske M, Gross AL, Rebok GW, Parisi JM. External locus of control contributes to racial disparities in memory and reasoning training gains in ACTIVE. Psychol Aging. 2015 Sep; 30(3):561-72. PMID: 26237116; PMCID: PMC4556562.
    22. Thomas M, Bangen KJ, Ardelt M, Jeste DV. Development of a 12-Item Abbreviated Three-Dimensional Wisdom Scale (3D-WS-12): Item Selection and Psychometric Properties. Assessment. 2017 Jan; 24(1):71-82. PMID: 26209513.
      View in: PubMed
    23. Thomas M, Brown GG, Gur RC, Moore TM, Patt VM, Nock MK, Naifeh JA, Heeringa S, Ursano RJ, Stein MB. Measurement of latent cognitive abilities involved in concept identification learning. J Clin Exp Neuropsychol. 2015; 37(6):653-69. PMID: 26147832.
      View in: PubMed
    24. Light GA, Swerdlow NR, Thomas M, Calkins ME, Green MF, Greenwood TA, Gur RE, Gur RC, Lazzeroni LC, Nuechterlein KH, Pela M, Radant AD, Seidman LJ, Sharp RF, Siever LJ, Silverman JM, Sprock J, Stone WS, Sugar CA, Tsuang DW, Tsuang MT, Braff DL, Turetsky BI. Validation of mismatch negativity and P3a for use in multi-site studies of schizophrenia: characterization of demographic, clinical, cognitive, and functional correlates in COGS-2. Schizophr Res. 2015 Apr; 163(1-3):63-72. PMID: 25449710; PMCID: PMC4382452.
    25. MacDonald K, Sciolla AF, Folsom D, Bazzo D, Searles C, Moutier C, Thomas M, Borton K, Norcross B. Individual risk factors for physician boundary violations: the role of attachment style, childhood trauma and maladaptive beliefs. Gen Hosp Psychiatry. 2015 Jan-Feb; 37(1):81-8. PMID: 25440724.
      View in: PubMed
    26. MacDonald K, Thomas M, MacDonald TM, Sciolla AF. A perfect childhood? Clinical correlates of minimization and denial on the childhood trauma questionnaire. J Interpers Violence. 2015 Mar; 30(6):988-1009. PMID: 24981003.
      View in: PubMed
    27. Patt VM, Thomas M, Minassian A, Geyer MA, Brown GG, Perry W. Disentangling working memory processes during spatial span assessment: a modeling analysis of preferred eye movement strategies. J Clin Exp Neuropsychol. 2014; 36(2):186-204. PMID: 24499103; PMCID: PMC3970432.
    28. MacDonald K, Berlow R, Thomas M. Attachment, affective temperament, and personality disorders: a study of their relationships in psychiatric outpatients. J Affect Disord. 2013 Dec; 151(3):932-41. PMID: 24054918.
      View in: PubMed
    29. Brown GG, Turner TH, Mano QR, Bolden K, Thomas M. Experimental manipulation of working memory model parameters: an exercise in construct validity. Psychol Assess. 2013 Sep; 25(3):844-58. PMID: 23815108.
      View in: PubMed
    30. Thomas M, Brown GG, Thompson WK, Voyvodic J, Greve DN, Turner JA, Mathalon DH, Ford J, Wible CG, Potkin SG. An application of item response theory to fMRI data: prospects and pitfalls. Psychiatry Res. 2013 Jun 30; 212(3):167-74. PMID: 23642468; PMCID: PMC3775707.
    31. Thomas M, Brown GG, Gur RC, Hansen JA, Nock MK, Heeringa S, Ursano RJ, Stein MB. Parallel psychometric and cognitive modeling analyses of the Penn Face Memory Test in the Army Study to Assess Risk and Resilience in Servicemembers. J Clin Exp Neuropsychol. 2013; 35(3):225-45. PMID: 23383967; PMCID: PMC3600160.
    32. Lanyon RI, Thomas M. Assessment of global psychiatric categories: the PSI/PSI-2 and the MMPI-2-RF. Psychol Assess. 2013 Mar; 25(1):227-32. PMID: 23088203.
      View in: PubMed
    33. Thomas M. Rewards of bridging the divide between measurement and clinical theory: demonstration of a bifactor model for the Brief Symptom Inventory. Psychol Assess. 2012 Mar; 24(1):101-13. PMID: 21767026.
      View in: PubMed
    34. Locke DE, Stonnington CM, Thomas M, Caselli RJ. Correlates of quitting the Paced Auditory Serial Addition Test in cognitively normal older adults participating in a study of normal cognitive aging. J Clin Exp Neuropsychol. 2011 Oct; 33(8):937-43. PMID: 21950515; PMCID: PMC3315152.
    35. Youngjohn JR, Wershba R, Stevenson M, Sturgeon J, Thomas M. Independent validation of the MMPI-2-RF Somatic/Cognitive and Validity scales in TBI Litigants tested for effort. Clin Neuropsychol. 2011 Apr; 25(3):463-76. PMID: 21391149.
      View in: PubMed
    36. Locke DE, Thomas M. Initial development of Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF) scales to identify patients with psychogenic nonepileptic seizures. J Clin Exp Neuropsychol. 2011 Mar; 33(3):335-43. PMID: 21069613.
      View in: PubMed
    37. Thomas M, Locke DE. Psychometric properties of the MMPI-2-RF Somatic Complaints (RC1) scale. Psychol Assess. 2010 Sep; 22(3):492-503. PMID: 20822262.
      View in: PubMed
    38. Thomas M. The value of item response theory in clinical assessment: a review. Assessment. 2011 Sep; 18(3):291-307. PMID: 20644081.
      View in: PubMed
    39. Locke DE, Kirlin KA, Thomas M, Osborne D, Hurst DF, Drazkowski JF, Sirven JI, Noe KH. The Minnesota Multiphasic Personality Inventory-2-Restructured Form in the epilepsy monitoring unit. Epilepsy Behav. 2010 Feb; 17(2):252-8. PMID: 20061185.
      View in: PubMed
    40. Thomas M, Youngjohn JR. Let's not get hysterical: comparing the MMPI-2 validity, clinical, and RC scales in TBI litigants tested for effort. Clin Neuropsychol. 2009 Aug; 23(6):1067-84. PMID: 19343593.
      View in: PubMed
    41. Thomas M, Lanyon RI, Millsap RE. Validation of diagnostic measures based on latent class analysis: a step forward in response bias research. Psychol Assess. 2009 Jun; 21(2):227-30. PMID: 19485677.
      View in: PubMed
    42. Thomas M, Elgar MA. Colony size affects division of labour in the ponerine ant Rhytidoponera metallica. Naturwissenschaften. 2003 Feb; 90(2):88-92. PMID: 12590305.
      View in: PubMed
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