Principal Investigator

Barbara Knowlton, Ph.D.,
knowlton@psych.ucla.edu
Barbara received her Ph.D. in Neuroscience from Stanford University where she studied the neural circuit supporting eyeblink conditioning in Richard Thompson’s lab. She went on to do a post-doc at UC San Diego with Larry Squire, investigating memory systems involved in category learning. Since joining the UCLA faculty in 1995 she has studied the neural basis of habits, skills, and episodic memory.
Graduate Students

Henri De Guzman henrideguzman@gmail.com
Henri is studying the neural mechanisms of learning and memory using both human and non-human animal models of behavior combined with modern neuroscience techniques such as functional magnetic resonance imaging or optogenetics. His interests include habit formation, addiction, and psychiatric illness, with particular interest in the neural processes of the basal ganglia

Stephanie Wert stephaniewert@g.ucla.edu
Stephanie is a cognitive neuroscience graduate student studying the neural mechanisms of learning, memory, and decision making. She is interested in using neuroimaging, brain stimulation, and eye-tracking techniques to elucidate causal mechanisms behind these functions in humans.

Sonya Ashikyan SonyaAshikyan@ucla.edu
Sonya is a cognitive neuroscience graduate student investigating the neural correlates of consciousness, reasoning, memory, and language. She utilizes human neuroimaging, neuromodulation, and animal models for both basic and clinical topics.

Donni Staleydstaley@g.ucla.edu
Donni is a cognitive neuroscience graduate student interested in the cognitive and neural mechanisms behind learning and memory. Her current research focuses on prospective memory in both healthy and clinical populations. Her clinical work involves collaborating with UCLA Health’s Operation Mend to elucidate the factors contributing to prospective memory deficits in treatment-seeking veterans. In healthy populations, she is investigating more basic research questions like the effects of value in both event and time based prospective memory
| Lab Alumni (2020-2025) | Current position |
| Julia Schorn | UX Researcher |
| Corinna Franco | Human Factors Scientific Consulting |
