Research

What we typically consider as higher mental functions -- such as working memory, attention, and decision making -- generally require the brain to retain information that is not concurrently given to the sensory systems, and to perform computations on it. This is a highly non-trivial process, especially given that neurons that comprise our brain operates at the time scale of milliseconds, much faster than these cognitive processes. My current research aims to provide circuit-level explanations to longer-timescale mental/behavioral processes using the larval zebrafish (Danio rerio) as a model system. The larval zebrafish is the smallest vertebrate model organisms used in neuroscience with the body length of 4 mm and only about 100k neurons in their brain (as compared to 70M in mice and 90B in humans). In addition to their small size, the optical accessibility of their brains, as well as their genetic tractability make the zebrafish larvae amenable to various cutting edge experimental approaches, such as brain-wide calcium imaging, optogenetics, and EM-based circuit reconstructions.

During my PhD, I studied visual feature detection and their behavioral functions in the fruit fly Drosophila at Clark lab @Yale. My aspiration there was to bridge "why" flies need to see certain things, "what" computation their brains perform to see what they need to see, and "how" such computations are actually achieved by circuits of neurons, which together consitute canonical criteria of understanding in neuroscience. You can find my thesis here to check for yourself if I lived up to this lofty goal.

During my undergrad and master's, I studied perception in human subjects at Yotsumoto lab @UTokyo, where I was initiated into the world of research.

You can find my Google Scholar profile here.

Publications

Fish works

Fly works

Human works

Comparative works