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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. Segal D, Gollan TH. What's left for balanced bilinguals? Language proficiency and item familiarity affect left-hemisphere specialization in metaphor processing. Neuropsychology. 2018 Aug 30. PMID: 30160502.
      View in: PubMed
    2. Li C, Gollan TH. Cognates interfere with language selection but enhance monitoring in connected speech. Mem Cognit. 2018 Apr 20. PMID: 29679293.
      View in: PubMed
    3. Reyes A, Paul BM, Marshall A, Chang YA, Bahrami N, Kansal L, Iragui VJ, Tecoma ES, Gollan TH, McDonald CR. Does bilingualism increase brain or cognitive reserve in patients with temporal lobe epilepsy? Epilepsia. 2018 Apr 16. PMID: 29658987.
      View in: PubMed
    4. Kleinman D, Gollan TH. Inhibition accumulates over time at multiple processing levels in bilingual language control. Cognition. 2018 Apr; 173:115-132. PMID: 29405945.
      View in: PubMed
    5. Zlatar ZZ, Muniz MC, Espinoza SG, Gratianne R, Gollan TH, 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
    6. Li C, Gollan TH. 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
    7. Gollan TH, 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
    8. Gollan TH, 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
    9. Stasenko A, Matt GE, Gollan TH. 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
    10. Li C, Goldrick M, Gollan TH. Bilinguals' twisted tongues: Frequency lag or interference? Mem Cognit. 2017 May; 45(4):600-610. PMID: 28265900.
      View in: PubMed
    11. Ivanova I, Ferreira VS, Gollan TH. Form Overrides Meaning When Bilinguals Monitor for Errors. J Mem Lang. 2017 Jun; 94:75-102. PMID: 28649169.
      View in: PubMed
    12. Gollan TH, 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
    13. Kleinman D, Gollan TH. 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
    14. Ivanova I, Murillo M, Montoya RI, Gollan TH. Does Bilingual Language Control Decline in Older Age? Linguist Approaches Biling. 2016; 6(1-2):86-118. PMID: 28090222.
      View in: PubMed
    15. Emmorey K, Giezen MR, Gollan TH. Insights from bimodal bilingualism: Reply to commentaries. Biling (Camb Engl). 2016 Mar; 19(2):261-263. PMID: 28781571.
      View in: PubMed
    16. Tao L, Taft M, Gollan TH. 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
    17. Emmorey K, Giezen MR, Gollan TH. Psycholinguistic, cognitive, and neural implications of bimodal bilingualism. Biling (Camb Engl). 2016 Mar; 19(2):223-242. PMID: 28804269.
      View in: PubMed
    18. Gollan TH, 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.
    19. Weissberger GH, Gollan TH, 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.
    20. Gollan TH, 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.
    21. Ivanova I, Salmon DP, Gollan TH. 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.
    22. Sheng L, Lu Y, Gollan TH. 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
    23. Suarez PA, Gollan TH, 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.
    24. Wardlow L, Ivanova I, Gollan TH. 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.
    25. Gollan TH, 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
    26. Gollan TH, 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.
    27. Kang SH, Gollan TH, 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
    28. Runnqvist E, Gollan TH, 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.
    29. Prior A, Gollan TH. 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
    30. Van Assche E, Duyck W, Gollan TH. 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
    31. Weissberger GH, Salmon DP, Bondi MW, Gollan TH. Which neuropsychological tests predict progression to Alzheimer's disease in Hispanics? Neuropsychology. 2013 May; 27(3):343-55. PMID: 23688216; PMCID: PMC3740167.
    32. Ivanova I, Salmon DP, Gollan TH. 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.
    33. Emmorey K, Petrich JA, Gollan TH. Bimodal bilingualism and the frequency-lag hypothesis. J Deaf Stud Deaf Educ. 2013 Jan; 18(1):1-11. PMID: 23073709.
      View in: PubMed
    34. Gollan TH, Goldrick M. Does bilingualism twist your tongue? Cognition. 2012 Dec; 125(3):491-7. PMID: 22959222.
      View in: PubMed
    35. Antón-Méndez I, Schütze CT, Champion MK, Gollan TH. 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
    36. Gollan TH, 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
    37. Weissberger GH, Wierenga CE, Bondi MW, Gollan TH. 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.
    38. Emmorey K, Petrich J, Gollan TH. 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
    39. Kamat R, Ghate M, Gollan TH, 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.
    40. Gollan TH, 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.
    41. Gollan TH, 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.
    42. Prior A, Gollan TH. 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
    43. Gollan TH, 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.
    44. 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 TH, 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
    45. Antón-Méndez I, Gollan TH. 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.
    46. Gollan TH, 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.
    47. Bialystok E, Craik FI, Green DW, Gollan TH. Bilingual Minds. Psychol Sci Public Interest. 2009 Dec; 10(3):89-129. PMID: 26168404.
      View in: PubMed
    48. Pyers JE, Gollan TH, Emmorey K. Bimodal bilinguals reveal the source of tip-of-the-tongue states. Cognition. 2009 Aug; 112(2):323-9. PMID: 19477437; PMCID: PMC2862226.
    49. Gollan TH, 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.
    50. Rivera Mindt M, Arentoft A, Kubo Germano K, D'Aquila E, Scheiner D, Pizzirusso M, Sandoval TC, Gollan TH. Neuropsychological, cognitive, and theoretical considerations for evaluation of bilingual individuals. Neuropsychol Rev. 2008 Sep; 18(3):255-68. PMID: 18841477; PMCID: PMC2652412.
    51. Gollan TH, 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
    52. Emmorey K, Borinstein HB, Thompson R, Gollan TH. Bimodal bilingualism. Biling (Camb Engl). 2008 Mar; 11(1):43-61. PMID: 19079743.
      View in: PubMed
    53. Gollan TH, 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
    54. Gollan TH, 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
    55. Thompson R, Emmorey K, Gollan TH. "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
    56. Gollan TH, 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
    57. Gollan TH, Salmon DP, Paxton JL. Word association in early Alzheimer's disease. Brain Lang. 2006 Dec; 99(3):289-303. PMID: 16122782.
      View in: PubMed
    58. Gollan TH, 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
    59. Gollan TH, 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
    60. Gollan TH, Montoya RI, Werner GA. Semantic and letter fluency in Spanish-English bilinguals. Neuropsychology. 2002 Oct; 16(4):562-76. PMID: 12382994.
      View in: PubMed
    61. Gollan TH, 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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