Plyfaa Suwanamalik-Murphy

ปลายฟ้า /ˈplaɪfɑː/

Cognitive scientist · Eye signals & human state

plysuwana [at] gmail [dot] com

About

Portrait of Plyfaa Suwanamalik-Murphy

I study what the eyes reveal about cognitive state: attention, alertness, and conscious perception. Over four years of research at the National Institutes of Health, the University of Oxford, and UC Davis, I've built analysis pipelines for eye-tracking, MEG, EEG, and intracortical brain-computer interface (BCI) recordings.

I'm a PhD student in Psychology at UC San Diego, in Dr. Timothy Brady's Vision and Memory Lab. I'm also building Avelis, Inc., which translates ocular physiology into machine-readable measures of human state.

Current

2026 – present

University of California, San Diego

Department of Psychology, UCSD Vision and Memory Lab

PhD Student

PI: Dr. Timothy Brady

Present

Avelis, Inc.

Human-state sensing

Early warning for declining alertness and performance in safety-critical settings through eye-based sensing.

Research Experience

2024 – 2026

National Institutes of Health (NIMH)

Laboratory of Brain and Cognition, Section on Functional Imaging Methods

Postbaccalaureate Research Fellow (IRTA)

Built an ocular analysis pipeline in MATLAB: pupil and gaze extraction, blink interpolation, microsaccade detection, and event epoching. MEG preprocessing with ICA and artifact rejection, automated on Slurm HPC. Recruited 30+ participants; collected fMRI and behavioral data.

PI: Dr. Peter Bandettini

2023 – 2024

UC Davis, Department of Neurological Surgery

Neuroprosthetics Lab

Simons Foundation Shenoy Fellow

Developed a spike-sorting pipeline in Python isolating single neurons from four 64-channel microelectrode arrays implanted in a participant with ALS, as part of a speech BCI study.

PI: Dr. Sergey Stavisky

2023

University of Oxford, Department of Experimental Psychology

Oxford Perception Lab

Visiting Research Scholar

Piloted perception paradigms in PsychToolbox and built MATLAB visualization pipelines for iridescent stimuli.

PI: Dr. Hannah Smithson

2022 – 2023

UC Davis, Center for Mind & Brain

Visual Cognition Lab

Research Assistant

Built a 40+ scene image dataset for studying how scene context shapes visual attention; ran eye-tracking experiments and annotated 200+ stimuli for object depth.

PI: Dr. John Henderson

2022 – 2023

UC Davis, Center for Mind & Brain

Neural Mechanisms of Attention + Cognitive Neurolinguistics Labs

Research Assistant

Collected and analyzed 64-channel EEG investigating audiovisual speech processing, including ERP analyses of N400 responses.

PI: Dr. George Mangun, Dr. David Corina

2022

Hawaiʻi Pacific Neuroscience

Summer Intern

Analyzed clinical records and psychiatric outcomes in multiple sclerosis using nonparametric and categorical statistics. Published as an abstract in Neurology.

PI: Drs. Jason Viereck, Kore Liow & Shin Chang

2022

University of Hawaiʻi at Mānoa

Brain & Behavior Lab + Intergroup Social Perception Lab

Summer Research Assistant

Assembled EEG acquisition systems for neurological rehabilitation research and analyzed demographic effects on face recognition with mixed-design models.

PI: Dr. Jonas Vibell, Dr. Kristin Pauker

Publications & Presentations

Published Abstracts

  1. Chang, S., Suwanamalik-Murphy, P., Okazaki, J., Roy, D., Matsunaga, M., Goo, C., Carrazana, E., Viereck, J., & Liow, K. (2023). Investigating the prevalence of psychiatric disorders in multiple sclerosis with autoimmune comorbidities (P5-3.008). Neurology, 100(17 Suppl 2). DOI

Oral Presentations

  1. Suwanamalik-Murphy, P., et al. (2026). The physiological correlates of conscious and unconscious visual and auditory processing: An MEG and eye-tracking study. Vision Sciences Society Annual Meeting, St. Pete Beach, FL. Presentation details
  2. Suwanamalik-Murphy, P., Gobo, V., Gonzalez-Castillo, J., Benitez-Andonegui, A., Bandettini, P., & Kronemer, S. (2025). Neural dynamics of visual consciousness and awareness. Society for Neuroscience Annual Meeting, San Diego, CA. Accepted oral presentation; not presented due to the government shutdown.
  3. Suwanamalik-Murphy, P. (2025). The eyes know what the brain hears. NIMH IRP Fellows’ Scientific Training Day, Washington, D.C. Selected lightning talk, one of two postbacs chosen.
  4. Suwanamalik-Murphy, P., Gobo, V., Gonzalez-Castillo, J., Benitez-Andonegui, A., Bandettini, P., & Kronemer, S. (2025). Examining how spontaneous eye measures indicate conscious and unconscious sensory neural processing. NIMH IRP Fellows’ Scientific Training Day, Washington, D.C.
  5. Suwanamalik-Murphy, P. (2025). What the eyes reveal about the brain. NIMH Three Minute Talk Competition, Bethesda, MD.
  6. Suwanamalik-Murphy, P., Gobo, V., Gonzalez-Castillo, J., Benitez-Andonegui, A., Bandettini, P., & Kronemer, S. (2025). Investigating eye metrics as an indicator of sensory neural processing, behavior, and conscious perception. Association for the Scientific Study of Consciousness, Heraklion, Crete, Greece.
  7. Suwanamalik-Murphy, P., Gobo, V., Gonzalez-Castillo, J., Benitez-Andonegui, A., Bandettini, P., & Kronemer, S. (2025). How brain states associated with spontaneous pupillary fluctuations alter conscious and unconscious sensory neural processing. NIH Postbac Poster Day, Bethesda, MD.
  8. Suwanamalik-Murphy, P., Shehabi, S., Laurie, N., Pierotti, E., & Corina, D. (2023). The impact of audiovisual cues on speech recognition: An ERP study. UC Davis Undergraduate Research Conference, Davis, CA.
  9. Chang, S., Suwanamalik-Murphy, P., Okazaki, J., Roy, D., Goo, C., Liow, K., Viereck, J., & Carrazana, E. (2023). Investigating the prevalence of psychiatric disorders in multiple sclerosis with autoimmune comorbidities. American Academy of Neurology Annual Meeting, Boston, MA.
  10. Shehabi, S., Suwanamalik-Murphy, P., Pierotti, E., & Corina, D. (2023). An ERP study investigating the influence of audiovisual cues on speech recognition. Stanford University, Stanford, CA.
  11. Mason, T., Suwanamalik-Murphy, P., Tenorio, K., Diaz, S., Pauker, K., Gaither, S., Halim, M., Dunham, Y., & Olson, K. (2023). Variability in the cross-race effect among geographically diverse White children. Society for Personality and Social Psychology Annual Convention, Atlanta, GA.

Selected Projects (Outside the Lab)

Nudge try-nudge.com

Browser-based focus tool using webcam gaze tracking (MediaPipe FaceMesh) with three-step calibration and a 10-second distraction threshold.

Lasso

Price-drop tracker, iOS App Store.

Matches pls

Directory and map of free matchbooks in San Francisco, built in response to community demand on TikTok.

Rodeo Growth Fellow rodeorodeorodeo.com

Created UGC content for Rodeo, founded by former Hinge executives. Drove 150K+ TikTok views in two weeks, starting with no prior social media experience.

Meditation app

Led visual design in Krea for a fairy-themed meditation app for a paid client.

Education

University of California, San Diego

PhD student, Psychology (Cognitive and Vision Science emphasis)

University of California, Davis

Bachelor's, Cognitive Science · GPA 3.83

Fellowships & Awards

NIH Postbaccalaureate Intramural Research Training Award 2024 – 2026 $94,300
NIH Maximizing Access to Research Careers (MARC) Traineeship 2023 $22,338
Simons Foundation Shenoy Undergraduate Research Fellowship 2023 $11,598
UK Rank Prize Undergraduate Vacation Grant 2023 $5,500
UC Davis Experiential Learning Opportunity Grant 2023 $3,600
NIMH Trainee Travel Award 2025 $1,000
UC Davis Provost's Undergraduate Fellowship 2023 $808
ASSC Early Career Researcher Travel Award 2025 $500
UC Davis Undergraduate Travel Award 2024 $500

Service & Leadership

2025 – present

Naloxone Network, Community Health Outreach Volunteer · Washington, D.C.

2023 – 2024

Cognitive Science Student Association, UC Davis, Project Manager

2023 – 2024

The Aggie Transcript: Psychology, Treasurer & Senior Editor

2020 – 2021

San Francisco Youth Commission, Vice-Chair