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Tamar Gollan

TitleProfessor
InstitutionUniversity of California San Diego
DepartmentPsychiatry
Address9500 Gilman Drive #0948
La Jolla CA 92093
Phone858-246-1263
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    Biography

    Dr. Gollan received her B.A. from Brandeis University, a Ph.D. in clinical and cognitive neuropsychology from the University of Arizona, and completed an internship in clinical neuropsychology at UCSD, and post-doctoral fellowships at UCSD and Pomona college where she taught classes on Cognitive Science and Cognitive Neuropsychology. Dr. Gollan is a faculty member of the UCSD/SDSU Joint Doctoral Program in Clinical Psychology, and also mentors undergraduate research as part of the Faculty Mentor Program and the McNair Program for students who are underrepresented in graduate education. Dr. Gollan’s research is funded by an R01 from NIDCD.

    Research Interests

    Bilinguals seem to effortlessly control which language they speak. They almost never switch languages by mistake, and yet they can also switch fluently back and forth between languages when speaking in bilingual contexts. How do bilinguals maintain such effective control over language selection, and to what extent does language control rely on domain-general executive control? Do older bilinguals have more difficulty juggling two languages, and how does Alzheimer’s disease change a person’s ability to speak two languages? Bilinguals don’t seem different from monolinguals, but they know roughly twice as many words as monolinguals, and Dr. Gollan’s research suggests that this doubled load produces subtle but significant differences between bilinguals and monolinguals. Dr. Gollan’s research aims to discover how the language processing system manages the juggling associated with bilingualism to reveal the cognitive mechanisms that allow speakers to produce error free speech.

    Clinical Focus

    Diagnosing cognitive impairments in bilinguals is more complicated than in monolinguals. Bilinguals perform differently from monolinguals on many of the most commonly administered measures of neuropsychological functioning, and these tests were developed for use with monolinguals and therefore fail to consider aspects of performance that are unique to bilinguals. Test performance differences may erroneously suggest an "abnormality" when in fact they simply reflect the normal consequences of bilingualism. The clinical goals in Dr. Gollan’s research are 1) to determine whether performance differences between bilinguals and monolinguals will interfere with the detection of cognitive impairment in bilinguals, and 2) to develop tests that cater more specifically to assessment of bilinguals.


    Collapse Research 
    Collapse Research Activities and Funding
    Bilingual Language Control
    NIH/NICHD R56HD079426Jun 17, 2015 - May 31, 2016
    Role: Principal Investigator
    Bilingual Alzheimer's Disease
    NIH/NIDCD R01DC011492Dec 1, 2010 - Nov 30, 2020
    Role: Principal Investigator
    The Bilingual Effect on Speaking
    NIH/NICHD R01HD050287Feb 20, 2007 - Jan 31, 2013
    Role: Principal Investigator
    Using Cognates to Improve Bilingual Verbal Assessment
    NIH/NIDCD K23DC000191Apr 15, 2002 - Apr 30, 2008
    Role: Principal Investigator
    UCSD Alzheimer's Disease Research Center P50
    NIH/NIA P50AG005131Sep 28, 1984 - Mar 31, 2019
    Role: Co-Investigator

    Collapse Bibliographic 
    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.
    List All   |   Timeline
    1. Li C, Gollan T. Cognates interfere with language selection but enhance monitoring in connected speech. Mem Cognit. 2018 Apr 20. PMID: 29679293.
      View in: PubMed
    2. Reyes A, Paul BM, Marshall A, Chang YA, Bahrami N, Kansal L, Iragui VJ, Tecoma ES, Gollan T, McDonald CR. Does bilingualism increase brain or cognitive reserve in patients with temporal lobe epilepsy? Epilepsia. 2018 Apr 16. PMID: 29658987.
      View in: PubMed
    3. Kleinman D, Gollan T. Inhibition accumulates over time at multiple processing levels in bilingual language control. Cognition. 2018 Apr; 173:115-132. PMID: 29405945.
      View in: PubMed
    4. Zlatar ZZ, Muniz MC, Espinoza SG, Gratianne R, Gollan T, Galasko D, Salmon DP. Subjective Cognitive Decline, Objective Cognition, and Depression in Older Hispanics Screened for Memory Impairment. J Alzheimers Dis. 2018; 63(3):949-956. PMID: 29689718.
      View in: PubMed
    5. Li C, Gollan T. Cognates Facilitate Switches and Then Confusion: Contrasting Effects of Cascade Versus Feedback on Language Selection. J Exp Psychol Learn Mem Cogn. 2017 Dec 28. PMID: 29283605.
      View in: PubMed
    6. Gollan T, Goldrick M. A switch is not a switch: Syntactically-driven bilingual language control. J Exp Psychol Learn Mem Cogn. 2018 Jan; 44(1):143-156. PMID: 28782969.
      View in: PubMed
    7. Gollan T, Stasenko A, Li C, Salmon DP. Bilingual language intrusions and other speech errors in Alzheimer's disease. Brain Cogn. 2017 Nov; 118:27-44. PMID: 28753438.
      View in: PubMed
    8. Stasenko A, Matt GE, Gollan T. A relative bilingual advantage in switching with preparation: Nuanced explorations of the proposed association between bilingualism and task switching. J Exp Psychol Gen. 2017 Nov; 146(11):1527-1550. PMID: 28714710.
      View in: PubMed
    9. Li C, Goldrick M, Gollan T. Bilinguals' twisted tongues: Frequency lag or interference? Mem Cognit. 2017 May; 45(4):600-610. PMID: 28265900.
      View in: PubMed
    10. Ivanova I, Ferreira VS, Gollan T. Form Overrides Meaning When Bilinguals Monitor for Errors. J Mem Lang. 2017 Jun; 94:75-102. PMID: 28649169.
      View in: PubMed
    11. Gollan T, Goldrick M. Grammatical Constraints on Language Switching: Language Control is not Just Executive Control. J Mem Lang. 2016 Oct; 90:177-199. PMID: 27667899.
      View in: PubMed
    12. Kleinman D, Gollan T. Speaking Two Languages for the Price of One: Bypassing Language Control Mechanisms via Accessibility-Driven Switches. Psychol Sci. 2016 05; 27(5):700-14. PMID: 27016240.
      View in: PubMed
    13. Ivanova I, Murillo M, Montoya RI, Gollan T. Does Bilingual Language Control Decline in Older Age? Linguist Approaches Biling. 2016; 6(1-2):86-118. PMID: 28090222.
      View in: PubMed
    14. Emmorey K, Giezen MR, Gollan T. Insights from bimodal bilingualism: Reply to commentaries. Biling (Camb Engl). 2016 Mar; 19(2):261-263. PMID: 28781571.
      View in: PubMed
    15. Tao L, Taft M, Gollan T. The Bilingual Switching Advantage: Sometimes Related to Bilingual Proficiency, Sometimes Not. J Int Neuropsychol Soc. 2015 Aug; 21(7):531-44. PMID: 26527242.
      View in: PubMed
    16. Emmorey K, Giezen MR, Gollan T. Psycholinguistic, cognitive, and neural implications of bimodal bilingualism. Biling (Camb Engl). 2016 Mar; 19(2):223-242. PMID: 28804269.
      View in: PubMed
    17. Gollan T, Starr J, Ferreira VS. More than use it or lose it: the number-of-speakers effect on heritage language proficiency. Psychon Bull Rev. 2015 Feb; 22(1):147-55. PMID: 24942146; PMCID: PMC4272335.
    18. Weissberger GH, Gollan T, Bondi MW, Clark LR, Wierenga CE. Language and task switching in the bilingual brain: Bilinguals are staying, not switching, experts. Neuropsychologia. 2015 Jan; 66:193-203. PMID: 25446970; PMCID: PMC4596720.
    19. Gollan T, Kleinman D, Wierenga CE. What's easier: doing what you want, or being told what to do? Cued versus voluntary language and task switching. J Exp Psychol Gen. 2014 Dec; 143(6):2167-95. PMID: 25313951; PMCID: PMC4244272.
    20. Ivanova I, Salmon DP, Gollan T. Which language declines more? longitudinal versus cross-sectional decline of picture naming in bilinguals with Alzheimer's disease. J Int Neuropsychol Soc. 2014 May; 20(5):534-46. PMID: 24725624; PMCID: PMC4209950.
    21. Sheng L, Lu Y, Gollan T. Assessing language dominance in Mandarin-English bilinguals: Convergence and divergence between subjective and objective measures. Biling (Camb Engl). 2014 Apr; 17(2):364-383. PMID: 25379011.
      View in: PubMed
    22. Suarez PA, Gollan T, Heaton R, Grant I, Cherner M. Second-language fluency predicts native language stroop effects: evidence from Spanish-English bilinguals. J Int Neuropsychol Soc. 2014 Mar; 20(3):342-8. PMID: 24622502; PMCID: PMC4296729.
    23. Wardlow L, Ivanova I, Gollan T. The cognitive mechanisms underlying perspective taking between conversational partners: evidence from speakers with Alzheimer?s disease. Neuropsychologia. 2014 Apr; 56:184-95. PMID: 24467889; PMCID: PMC4017924.
    24. Gollan T, Ferreira VS, Cera C, Flett S. Translation-priming effects on tip-of-the-tongue states. Lang Cogn Process. 2014 Jan 01; 29(3):278-288. PMID: 24644375.
      View in: PubMed
    25. Gollan T, Schotter ER, Gomez J, Murillo M, Rayner K. Multiple levels of bilingual language control: evidence from language intrusions in reading aloud. Psychol Sci. 2014 Feb; 25(2):585-95. PMID: 24367061; PMCID: PMC3946281.
    26. Kang SH, Gollan T, Pashler H. Don't just repeat after me: retrieval practice is better than imitation for foreign vocabulary learning. Psychon Bull Rev. 2013 Dec; 20(6):1259-65. PMID: 23681928.
      View in: PubMed
    27. Runnqvist E, Gollan T, Costa A, Ferreira VS. A disadvantage in bilingual sentence production modulated by syntactic frequency and similarity across languages. Cognition. 2013 Nov; 129(2):256-63. PMID: 23948209; PMCID: PMC4241230.
    28. Prior A, Gollan T. The elusive link between language control and executive control: A case of limited transfer. J Cogn Psychol (Hove). 2013 Aug 01; 25(5):622-645. PMID: 24688756.
      View in: PubMed
    29. Van Assche E, Duyck W, Gollan T. Whole-language and item-specific control in bilingual language production. J Exp Psychol Learn Mem Cogn. 2013 Nov; 39(6):1781-92. PMID: 23647380.
      View in: PubMed
    30. Weissberger GH, Salmon DP, Bondi MW, Gollan T. Which neuropsychological tests predict progression to Alzheimer's disease in Hispanics? Neuropsychology. 2013 May; 27(3):343-55. PMID: 23688216; PMCID: PMC3740167.
    31. Ivanova I, Salmon DP, Gollan T. The multilingual naming test in Alzheimer's disease: clues to the origin of naming impairments. J Int Neuropsychol Soc. 2013 Mar; 19(3):272-83. PMID: 23298442; PMCID: PMC4356120.
    32. Emmorey K, Petrich JA, Gollan T. Bimodal bilingualism and the frequency-lag hypothesis. J Deaf Stud Deaf Educ. 2013 Jan; 18(1):1-11. PMID: 23073709.
      View in: PubMed
    33. Gollan T, Goldrick M. Does bilingualism twist your tongue? Cognition. 2012 Dec; 125(3):491-7. PMID: 22959222.
      View in: PubMed
    34. Antón-Méndez I, Schütze CT, Champion MK, Gollan T. What the tip-of-the-tongue (TOT) says about homophone frequency inheritance. Mem Cognit. 2012 Jul; 40(5):802-11. PMID: 22351522.
      View in: PubMed
    35. Gollan T, Weissberger GH, Runnqvist E, Montoya RI, Cera CM. Self-ratings of Spoken Language Dominance: A Multi-Lingual Naming Test (MINT) and Preliminary Norms for Young and Aging Spanish-English Bilinguals. Biling (Camb Engl). 2012 Jul; 15(3):594-615. PMID: 25364296.
      View in: PubMed
    36. Weissberger GH, Wierenga CE, Bondi MW, Gollan T. Partially overlapping mechanisms of language and task control in young and older bilinguals. Psychol Aging. 2012 Dec; 27(4):959-74. PMID: 22582883; PMCID: PMC3494773.
    37. Emmorey K, Petrich J, Gollan T. Bilingual processing of ASL-English code-blends: The consequences of accessing two lexical representations simultaneously. J Mem Lang. 2012 Jul 01; 67(1):199-210. PMID: 22773886.
      View in: PubMed
    38. Kamat R, Ghate M, Gollan T, Meyer R, Vaida F, Heaton RK, Letendre S, Franklin D, Alexander T, Grant I, Mehendale S, Marcotte TD. Effects of Marathi-Hindi bilingualism on neuropsychological performance. J Int Neuropsychol Soc. 2012 Mar; 18(2):305-13. PMID: 22206622; PMCID: PMC3581332.
    39. Gollan T, Salmon DP, Montoya RI, Galasko DR. Degree of bilingualism predicts age of diagnosis of Alzheimer's disease in low-education but not in highly educated Hispanics. Neuropsychologia. 2011 Dec; 49(14):3826-30. PMID: 22001315; PMCID: PMC3223277.
    40. Gollan T, Sandoval T, Salmon DP. Cross-language intrusion errors in aging bilinguals reveal the link between executive control and language selection. Psychol Sci. 2011 Sep; 22(9):1155-64. PMID: 21775653; PMCID: PMC3598590.
    41. Prior A, Gollan T. Good language-switchers are good task-switchers: evidence from Spanish-English and Mandarin-English bilinguals. J Int Neuropsychol Soc. 2011 Jul; 17(4):682-91. PMID: 22882810.
      View in: PubMed
    42. Gollan T, Slattery TJ, Goldenberg D, Van Assche E, Duyck W, Rayner K. Frequency drives lexical access in reading but not in speaking: the frequency-lag hypothesis. J Exp Psychol Gen. 2011 May; 140(2):186-209. PMID: 21219080; PMCID: PMC3086969.
    43. Silverberg NB, Ryan LM, Carrillo MC, Sperling R, Petersen RC, Posner HB, Snyder PJ, Hilsabeck R, Gallagher M, Raber J, Rizzo A, Possin K, King J, Kaye J, Ott BR, Albert MS, Wagster MV, Schinka JA, Cullum CM, Farias ST, Balota D, Rao S, Loewenstein D, Budson AE, Brandt J, Manly JJ, Barnes L, Strutt A, Gollan T, Ganguli M, Babcock D, Litvan I, Kramer JH, Ferman TJ. Assessment of cognition in early dementia. Alzheimers Dement. 2011 May 01; 7(3):e60-e76. PMID: 23559893.
      View in: PubMed
    44. Antón-Méndez I, Gollan T. Not just semantics: strong frequency and weak cognate effects on semantic association in bilinguals. Mem Cognit. 2010 Sep; 38(6):723-39. PMID: 20852236; PMCID: PMC3568934.
    45. Gollan T, Salmon DP, Montoya RI, da Pena E. Accessibility of the nondominant language in picture naming: a counterintuitive effect of dementia on bilingual language production. Neuropsychologia. 2010 Apr; 48(5):1356-66. PMID: 20036679; PMCID: PMC2843816.
    46. Bialystok E, Craik FI, Green DW, Gollan T. Bilingual Minds. Psychol Sci Public Interest. 2009 Dec; 10(3):89-129. PMID: 26168404.
      View in: PubMed
    47. Pyers JE, Gollan T, Emmorey K. Bimodal bilinguals reveal the source of tip-of-the-tongue states. Cognition. 2009 Aug; 112(2):323-9. PMID: 19477437; PMCID: PMC2862226.
    48. Gollan T, Ferreira VS. Should I stay or should I switch? A cost-benefit analysis of voluntary language switching in young and aging bilinguals. J Exp Psychol Learn Mem Cogn. 2009 May; 35(3):640-65. PMID: 19379041; PMCID: PMC2864120.
    49. Rivera Mindt M, Arentoft A, Kubo Germano K, D'Aquila E, Scheiner D, Pizzirusso M, Sandoval TC, Gollan T. Neuropsychological, cognitive, and theoretical considerations for evaluation of bilingual individuals. Neuropsychol Rev. 2008 Sep; 18(3):255-68. PMID: 18841477; PMCID: PMC2652412.
    50. Gollan T, Montoya RI, Cera C, Sandoval TC. More use almost always a means a smaller frequency effect: Aging, bilingualism, and the weaker links hypothesis. J Mem Lang. 2008 Apr; 58(3):787-814. PMID: 19343088.
      View in: PubMed
    51. Emmorey K, Borinstein HB, Thompson R, Gollan T. Bimodal bilingualism. Biling (Camb Engl). 2008 Mar; 11(1):43-61. PMID: 19079743.
      View in: PubMed
    52. Gollan T, Fennema-Notestine C, Montoya RI, Jernigan TL. The bilingual effect on Boston Naming Test performance. J Int Neuropsychol Soc. 2007 Mar; 13(2):197-208. PMID: 17286875.
      View in: PubMed
    53. Gollan T, Brown AS. From tip-of-the-tongue (TOT) data to theoretical implications in two steps: when more TOTs means better retrieval. J Exp Psychol Gen. 2006 Aug; 135(3):462-83. PMID: 16846276.
      View in: PubMed
    54. Thompson R, Emmorey K, Gollan T. "Tip of the fingers" experiences by deaf signers: insights into the organization of a sign-based lexicon. Psychol Sci. 2005 Nov; 16(11):856-60. PMID: 16262769.
      View in: PubMed
    55. Gollan T, Montoya RI, Fennema-Notestine C, Morris SK. Bilingualism affects picture naming but not picture classification. Mem Cognit. 2005 Oct; 33(7):1220-34. PMID: 16532855.
      View in: PubMed
    56. Gollan T, Salmon DP, Paxton JL. Word association in early Alzheimer's disease. Brain Lang. 2006 Dec; 99(3):289-303. PMID: 16122782.
      View in: PubMed
    57. Gollan T, Montoya RI, Bonanni MP. Proper names get stuck on bilingual and monolingual speakers' tip of the tongue equally often. Neuropsychology. 2005 May; 19(3):278-87. PMID: 15910114.
      View in: PubMed
    58. Gollan T, Acenas LA. What is a TOT? Cognate and translation effects on tip-of-the-tongue states in Spanish-English and tagalog-English bilinguals. J Exp Psychol Learn Mem Cogn. 2004 Jan; 30(1):246-69. PMID: 14736310.
      View in: PubMed
    59. Gollan T, Montoya RI, Werner GA. Semantic and letter fluency in Spanish-English bilinguals. Neuropsychology. 2002 Oct; 16(4):562-76. PMID: 12382994.
      View in: PubMed
    60. Gollan T, Frost R. Two routes to grammatical gender: evidence from Hebrew. J Psycholinguist Res. 2001 Nov; 30(6):627-51. PMID: 11913850.
      View in: PubMed
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