ABOUT HOLLIS

Clinical Experience​

• Therapist & Founder, Unlimited Mind LLC ​​

  • October 2022- Present​

  • Contract with Creative Directions Counseling & Consulting and Next Breath Psychology

• Founder & Clinical Director, Duende Brain Injury Therapy​

  • May 2025- Current​

• Psychometrist​at, Pediatric Psychology Services of Colorado

  • January 2023- May 2025​

• Interning Therapist, The Brain Injury Alliance of Colorado

  • January 2021 - June 2024

• Mental Performance Consultant, Center for Performance Excellence

  • September 2018 — June 2019.

 

Research

Publications:

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• Haarbauer-Krupa, J., Daugherty, J., Black, L., Nagele, D., Dettmer, J., Gorgens, K., Brennan, H., Myles, R. L., Ashley, C. L., Medina, A., Tomita, I., & Lambert, L. A. (in submission). The association between childhood traumatic brain injury history and incarceration risk factors.

• Alexander, A. A., Klukoff, H., Lyman, H., & Neal, B. (under review). Perceptions of police,
  color-blind racial attitudes, and belief in a just world in psychology and law graduate
  trainees.

• Tackett, M. J., Gorgens, K., Miller, M. A., & Lyman, K. H. (2022). Understanding the rehabilitation psychology specialty career pathway. Rehabilitation psychology, 67(1), 1-8. https://d0i.0rg/l 0.1037/rep0000424

• Gorgens, K. A., Meyer, L., Dettmer, J., Standeven, M., Goodwin, E., Marchi, C., & Lyman, H. (2021). Traumatic Brain Injury in Community Corrections: Prevalence and Differences in Compliance and Long-Term Outcomes Among Men and Women on Probation. Criminal Justice and Behavior. https://doi.0rg/lO.l 177/00938548211010316

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Writing:

• Lyman, Katherine. (2020) Hidden Burdens of Concussions and Science Communication featured on Science Talk [Blog post]. Retrieved from https://www.sciencetalk.org/a-science- blog/the-hidden-burdens-of-concussions-and-science-communication

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Presentations:

• Haarbauer-Krupa, J., Daugherty, J., Nagele, D. A., Dettmer, J. L., Gorgens, K. A., Brennan, H.,
  Ashley, C. L., Medina, A., Tomita, I., & Lambert, L. A. (2024, October 31–November 3). History of
  childhood traumatic brain injury and potential risk factors for future incarceration [Conference
  presentation]. American Congress of Rehabilitation Medicine Conference, Dallas, TX.

• Lyman, H. (2022) Understanding and reconstructing sense of self after brain injury. Presented twice at Breaking Barriers: Brain Injury Conference by Brain Injury Alliance of Colorado.

• Golub, N., Lyman, H., Gorgens, K., Davidson, B., Mapoles, S., Osherow, E., & Pierro, H. (2022). Preseason performance differences between youth with and without a concussion history on a computerized neuropsychological assessment measure. 2022 Association of Applied Sport Psychology Conference, AASP 2022.

• Mapoles, S., Lyman, H., Le, K., Osherow, E., Matson, J., Golub, N., & Gorgens, K. (2021). Mechanisms of injury differ for justice-involved persons reporting a history of brain injury. Poster presentation at Front Range Neuroscience Group, Fort Collins, Colorado.

• Lyman, K. H., Kantor, C., Martin, D., Pontius, M., Kane, B., Tatum, K., & Gorgens, K. (2022) Women with Brain Injury in Criminal Justice: Differences in Comorbidities. Poster presentation at the American Psycho logy-Law Society Conference, Denver, CO.

• Golub, N., Lyman, K. H., Mapoles, S., Le, K., Osherow, E., & Gorgens, K. (2022) Comorbidities of violence exposure and brain injury in a juvenile justice involved population. Poster presentation at the American Psychology-Law Society Conference, Denver, CO.

• Lyman, K. H., & Valdez, L. (2022) Understanding and reconstructing sense of self after brain injury. Oral presentation at the Division 22 Rehabilitation Psychology Conference, Louisville, KY.

• Osherow, E., Mapoles, S., Lyman, H., Le, K.,.Golub, N., Gorgens, K. “Mechanisms of Significant Traumatic Brain Injury.” Rehabilitation Psychology Conference (Division 22 of the American Psychological Association). August 4-6, 2022. Minneapolis, MN.

• Gorgens, K., Lyman, K. H., & Kantor, K. (2022) Women with Brain Injury in Criminal Justice: Differences in Comorbidities. Poster presentation at the Division 22 Rehabilitation Psychology Conference, Louisville, KY. -Runner-up prize for best poster from the Women’s Section

• Golub, N., Lyman, H., & Gorgens, K. (2021) Psychosocial Comorbidities of Sport-Related TBI: Assessing History in Juvenile Justice. Poster presentation at the Association for Applied Sport Psychology 36th Annual Conference, Virtual.

• Lyman, K. H. (2021) How Much is a Life Worth? Medical Rationing, Persons who are Trans'^, and Persons with Disabilities. Virtual live presentation at HerDU, Denver, CO.

• Rivera, K. M., Lyman, H., Hoffman, M., Scott, S., Rozek, C. S., & Doom, J. R.

• (2021)  Qualitative analysis of adolescent social life during the COVID-19 pandemic. Poster presented at the biennial meeting for the Society for Research in Child Development, Virtual.

• Wyatt, O., Novak, M., Lyman, H., Stem, D., & Gorgens, K. (2019, October). Revisiting the prevalence of sport-related traumatic brain injuries in the criminal justice system. Poster presented at the Association for Applied Sport Psychology 34th Annual Conference, Portland, OR.

• Standeven, M., Lyman, K. H., Goodman, E., Murphy, A., Gorgens, K., Dettmer, J., Meyer, L., Knauer, R., & Horsfall, J. (2019, May) Reducing Recidivism for Justice-Involved Individuals with Traumatic Brain Injury: Determining the Efficacy of a Screening, Identification, and Referral Model. Poster presented at University of Denver Research Showcase, Denver, CO.

• Lyman, K. H. (2019) Trauma in Sport. Presentation at the Association for Applied Sport Psychology, Southwest Regional Conference, Denver, CO.

• Wyatt, O., Lyman, K. H., White, J. M., Granholm, A. C., Davidson, B., Ledreux, A., Shelburne, K., Pryhoda, M., Gihnore, A., Oduleye, N., Mackenzie, M., King, H., Regan, C. & Webb, T. (2018, December). A model study of multifactor concussion assessment. Poster presented at the 16th annual meeting of the Front Range Neuroscience Group, Fort Collins, CO.

• Webb, T., Granholm, A. C., Gorgens, K., Ledreux, A., Shelburne, K., Pryhoda, M., Gilmore, A., Wyatt, O. R., Oduleye, N., Mackenzie, M., King, H., Lyman, K. H, White, J. M.,Regan, C., & Davidson, B. (2018, December). Clinical Balance Testing for the Sensitivity of Concussion History in Division One Athletes. Poster presented at the 16th annual meeting of the Front Range Neuroscience Group, Fort Collins, CO.

• Regan, C., Granholm, A. C., Gorgens, K., Ledreux, A., Shelburne, K., Pryhoda, M., Gilmore, A.,Wyatt, O. R., Oduleye, N., Mackenzie, M., King, H., Lyman, K, H., White, J. M., Webb, T., & Davidson, B. (2018, December). Biomedical balance measurement and vestibular- ocular system sensitivity to acute concussion. Poster presented at the 16th annual meeting of the Front Range Neuroscience Group, Fort Collins, CO.

• Gilmore, A., Davidson, B., Gorgens, K., Ledreux, A., Shelburne, K., Pryhoda, M., Wyatt, O. R., Oduleye, N., Mackenzie, M., King, H., Lyman, K. H., White, J. M., Regan, C., Webb, T., & Granholm, A. C. (2018, December). Plasma and neuron-derived exosome biomarker levels in athletes with acute mTBI and chronic mTBT Poster presented at the 16th annual meeting of the Front Range Neuroscience Group, Fort Collins, CO.

• Lyman, K. H., & Bracy, A. (2018) Women in Ultra Running. Presentation at the Association for Applied Sport Psychology, Southwest Regional Conference, Denver, CO.

• Bishop, B., Lyman, K. H., Pasquarello, N., & Wang, T. (2011) Effects of Power and Status on Punishment Severity. Poster presented at the 24th Convention for Association for Psychological Science, Chicago, IL.

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Invited Guest Lectures

• Brennan, K.H. (2024, March 5th) What you can do with a master’s degree. Invited lecture at University of Denver, Denver, CO.

SERVICE

Journal Reviewer:

• Journal of Rural Mental Health; American Psychologist; Journal of Offender Rehabilitation; Journal of Offender Rehabilitation; PLOS One; Professional Psychology: Research and Practice; Substance Use and Misuse; The Surgery Journal

 

University Service:

• Alumni field placement supervisor: Master’s in Sport and Performance Psychology program at the University of Denver’s Graduate School of Professional Psychology (September 2021-June 2022)

 

Professional Service:

• APA Division 47 Cornerstone Committee (2019 – 2022)

• Early Career Mentorship Program Chair (2022-2024)

• APA Division 47, Sport Psych Works voluntary contributor & editor (2019 – 2020)

• Janet Hyde Graduate Student Research Grant Reviewer (2023- current)

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Community Service:

• Founding Committee member of Blocks, Neighborhoods, and Communities (August 2021 – December 2022)

• Colorado Palliative & Hospice Care, Legacy Stories interviewer & writer (2020 – 2023)

• Colorado Poor People's Campaign, Coordinating Committee (May 2020 – August 2021)

• The Blue Bench, Hotline Advocate for sexual assault survivors (November 2018 – April 2021)

• Diversity, Equity, Consent, and Inclusion (DICE) Team, Burning Man Affiliated Events (2022)

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TRAINING AND CONTINUING EDUCATION

• Grant Writing Certificate (November 15, 2020)

• Increasing Awareness and Insight, TBI (March 29, 2022)

• Basic EMDR Training (March 3,2023)

• EMDR and Traumatic Brain Injuries (April 22, 2023)

• Autistic-Affirmative Therapy for Allistic Providers (June 14, 2023)

• Rural communities: Treating depression & suicide (May 20, 2025)

• Clinical Supervision I (June 2025)

• Group EMDR Protocol (June 2025)

• Certified Therapeutic Game Master (June 2025)

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Professional Affiliations:

• American Association for the Advancement of Science

• APA Division 7 Developmental Psychology

• APA Division 15 Educational Psychology

• APA Division 22 Rehabilitation Psychology

• APA Division 33 Intellectual and Developmental Disabilities/Autism Spectrum Disorder

• APA Division 35 Society for Environmental, Population and Conservation Psychology

• APA Division 35 Society for the Psychology of Women

• APA Division 40 Society for Clinical Neuropsychology

• APA Division 44 Society for the Psychology of Sexual Orientation and Gender Diversity

• APA Division 48 Society for the Study of Peace, Conflict and Violence

• National Association of Psychometrists

• International Association of Counselors

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