Principal Investigator

Dobromir (Doby) Rahnev, Ph.D.

CV

E-mail: rahnev@psych.gatech.edu



Research Interests: Perceptual decision making, prefrontal cortex, metacognition, computational models of cognition

About me: I enjoy soccer, hiking, juggling, and math puzzles.


Postdocs

Johan Nakuci

CV

E-mail: jnakuci@gmail.com



Research Interests: I am interested in understanding how brain networks facilitate cognition.

About me: I like hiking and most things that involve the outdoors.


Bryan Conklin

CV

E-mail: bconklin6@gatech.edu



Research Interests: I am interested in understanding how cognitive processes arise from brain networks. I attempt to do this using signal processing techniques, network science and artificial neural network modeling to characterize biological neural networks while a human or nonhuman primate performs a cognitive function. Currently, I am modeling a dissociation observed between confidence and accuracy during a perceptual task using a convolutional neural network. This can provide insight into how the brain performs metacognitive judgments.

About me: I am raising a 1.5-year-old wonderful daughter with my wife. My hobbies include spending time with my family, working out, cryptocurrency (go defi), pc building, trading options, markets and only streaming tv series that have a rating of 8+ on imdb.


Yi Gao

CV

E-mail: yi.gao0525@outlook.com



Research Interests: I am interested in understanding human visual perception, including various visual effects such as adaptation, perceptual learning and ensemble coding. I am also interested in how other sensory modalities interact with vision.

About me: I like playing Werewolf games and Catan. I also love watching professional gamers playing PUBG Esports.


Graduate Students

Sean Zheng

CV

E-mail: seann0820@gmail.com



Research Interests: I am interested in how people become aware of themselves and the external environment. I am also interested in how people metacognitively monitor and control their own decision-making processes. I would like to use behavioural experiments, multimodal neuroimaging methods and computational models to answer these questions of interests.

About me: I love coffee, reading, Lego, stand-up comedy, Peanuts (comic), Japanese TV dramas, and Arsenal football club.


Samuel Goldstein

CV

E-mail: sgoldstein41@gatech.edu



Research Interests: I am interested in understanding abnormalities in functional organization and neural circuitry in psychiatric disorders and how fMRI + TMS Neurofeedback can modify neural circuitry.

About me: I like to freestyle dance, design fashion (Check out: fop-shop.com), whitewater kayak, and go on spontaneous adventures!


Nadia Haddara

CV

E-mail: nadiahaddara@gatech.edu



Research Interests: I am interested in the neural mechanisms underlying emotion-cognition interactions, specifically the influence of fear and threat-predictive environmental cues on how we perceive, attend to, and learn about meaningful associations. My current projects use functional neuroimaging (fMRI) to examine the impact of threat-related information on perceptual decision-making in the brain using a Pavlovian conditioning paradigm. I also have an interest in factors that modulate people’s basic visual perception and metacognition (i.e. the ability to reflect on and evaluate one’s behavior).

About me: I am an avid horseback rider who also enjoys running, reading any neuroscience book or fantasy trilogy I can get my hands on, and playing board games or just spending time with family and friends.


Farshad Rafiei

CV

E-mail: farshad@gatech.edu



Research Interests: I’m interested in using neuroimaging techniques to understand attention, learning, and decision making in the human brain. Investigating any aspect of the brain -- the most mysterious and exceptional organ in our body, which is the source of our memory, perception, creativity, and thinking -- is fascinating for me. One of my goals is helping people with behavioral and mental abnormalities. My research focuses on using simultaneous TMS-fMRI to understand the function of neural networks in the brain.

About me: I love playing soccer, playing games and watching movies. I also like poems and my favorite poet is Hafez.


Lab Manager

Kai Xue

CV

E-mail: kxue33@gatech.edu



Research Interests: I am interested in how visual system is able to perceive information and make decisions. I want to integrate computational modeling, neuroimaging techniques, and behavioral experimentation to understand how visual system understands and reasons actions.

About me: I play the piano and the flute. For sports, I play table tennis.


Lab Alumni

  Ji Won Bang - Former postdoc, now a postdoc at New York University.

  Jiwon Yeon - Former Ph.D. student, now a postdoc at Stanford University.

  Medha Shekhar - Former Ph.D. student, now a postdoc at University College London.