Raunit Kohli

Research

Research projects exploring Reinforcement Learning, Pro-Social Behaviours, and Multi-Modal Embedded Systems.

Publications

Explore-Exploit Behaviors During Rat-Robot Interactions Optimize Social and Spatial Security

2025 IEEE International Conference on Development and Learning

Each time an individual enters an environment, they must sample that environment in order to understand the potential hazards and rewards.

The uncertainty that comes with exploratory behavior can be stressful. An individual must learn to regulate their internal states to more flexibly process the outside world. One strategy for reducing risk in searching uncertain environments is establishing safe spots that can be frequently revisited in order to evaluate recently encountered information and to regulate stress that can build with social encounters and uncertainty. Engaging in this process with trusted social partners can help to mitigate stress, whereas encountering unknown others can induce stress. We seek to characterize how rodents' balances between exploration and regulation changes in the presence of social others and potential threats such as a novel robot.

Robotics Social Proxemics Rodents Homebase

Interactive neurorobotics: Behavioral and neural dynamics of agent interactions

Frontiers in Psychology, 2022; Sec. Cognitive Science

Interactive neurorobotics is a subfield which characterizes brain responses evoked during interaction with a robot, and their relationship with the behavioral responses.

Gathering rich neural and behavioral data from humans or animals responding to agents can act as a scaffold for the design process of future social robots. This research seeks to study how organisms respond to artificial agents in contrast to biological or inanimate ones. This experiment uses the novel affordances of the robotic platforms to investigate complex dynamics during minimally structured interactions that would be difficult to capture with classical experimental setups. We then propose a general framework for such experiments that emphasizes naturalistic interactions combined with multimodal observations and complementary analysis pipelines that are necessary to render a holistic picture of the data for the purpose of informing robotic design principles. Finally, we demonstrate this approach with an exemplar rat–robot social interaction task which included simultaneous multi-agent tracking and neural recordings.

Neurorobotics Rodents Computer Vision Reinforcement Learning

Robotic Exploratory Control Via Subcortical Oscillations [NON-PRESENTED]

11th International Brain-Computer Interface Meeting 2025

Navigation through real-world environments remains a difficult task in intelligent robotics, due to a constantly changing landscape of potential hazards and new information

The current research investigates the effectiveness of neural oscillations in these brain regions as control signals for robotic navigation, using the natural hierarchy of rodent subcortical activity as a decision-making architec- ture for a self-monitoring neurorobotic system. Building such hierarchical control systems with self-regulatory mechanisms is crucial for developing intelligent robotics that perform natural tasks as biological agents do

BCI Brain-Computer Interface

Projects

Pirat Homebase

Robotics Using Bayesian Inference Lab | Chiba Lab

This study investigates whether interaction with a mobile robot "PiRat" alters homebase dynamics compared with solo exploration and conspecific dyad exploration in rats.

The experiment uses a custom-built software and mechanical stack consisting of a novel rat-sized robot (Raspberry Pi Zero running ROS, STM32 microcontroller, custom gimbal motor driver boards), an external Python/Kivy GUI implementing finite-state machine autonomous behaviors with convolution-kernel-based homebase detection, and a multi-threaded SLEAP-powered live pose estimation pipeline for real-time multi-agent tracking. I designed the autonomous behaviors with varying degrees of pro-social and anti-social actions as they pertain to respecting the real-time predicted homebase of rat actors in the arena. Our team is actively in the data collection stage.

Robotics ROS Pose Estimation SLEAP Python

Pirat RL Regulation Optimization

Robotics Using Bayesian Inference Lab | Chiba Lab

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AI Classroom

Center for Human Development | Cognitive Science Department

ABCD - Adolescent Brain Cognitive Development Study, UC San Diego Coordinating Center

A transdisciplinary research project developing a novel embedded observational system for early childhood education environments, designed to passively capture multi-modal behavioral and physiological data during natural classroom interactions to deepen understanding of biopsychosocial development in young children.

The system integrates networked cameras, audio capture devices, neuromorphic sensors, and wearable physiological monitors with custom firmware, all synchronized through a completely novel networking integration across multiple network switches using an on-prem quartz crystal grandmaster network clock — a unique application pushing the bounds of Precision Time Protocol (PTPv2), Lab Streaming Layer (LSL), and Dante networking principles. Data is processed through many pipelines including custom complex signal filtering and processing software, computer vision, and ML-based annotation. I initiated the technical setup of the prototype embedded system and act as a consultant on the continued development of the high-precision multi-model secure integrated data-collection, visualization, and analysis pipelines.

Embedded Systems PTPv2 LSL Computer Vision ML Pipeline