Active vision in freely moving marmosets using head-mounted eye tracking

Our understanding of how vision functions as primates actively navigate the real-world is remarkably sparse. As most data have been limited to chaired and typically head-restrained animals, the synergistic interactions of different motor actions/plans inherent to active sensing—e.g., eyes, head, posture, movement, etc.—on visual perception are largely unknown. To address this considerable gap in knowledge, we developed an innovative wireless head-mounted eye-tracking system that performs Chair-free Eye-Recording using Backpack mounted micROcontrollers (CEREBRO) for small mammals, such as marmoset monkeys. Because eye illumination and environment lighting change continuously in natural contexts, we developed a segmentation artificial neural network to perform robust pupil tracking in these conditions. Leveraging this innovative system to investigate active vision, we demonstrate that although freely moving marmosets exhibit frequent compensatory eye movements equivalent to other primates..., The data presented here has eye position of the freely moving marmoset collected using custom designed head-mounted eye-tracker (CEREBRO) and the head/locomotion data which is acquired using OptiTrack system., , # Head eye and locomotion data- CEREBRO

[https://doi.org/10.5061/dryad.8gtht76xb](https://doi.org/10.5061/dryad.8gtht76xb)

The dataset belongs to the article \"Active vision in freely moving marmosets using head-mounted eye tracking\". The dataset has (a) eye position ,(b) head rotations and (c) locomotion data of a freely behaving animal wearing CEREBRO. Details of the system and results can be found in the article mentioned above. 

## Description of the data and file structure

The data is in form of a MATLAB readable .mat file. The data structures is as follows:

1. SyncBox = synchronization start times for Neurologger, CEREBRO, Calibration  faces stimuli for chaired marmoset,  moving stimuli for chaired marmoset, flashing dots stimuli for chaired marmoset, orientation grating stimuli for chaired marmoset, end of chaired phase, Optitrack onset, IR On , IR Off. (unit = seconds)
2. eye_deg = eye position (unit = degrees)
3. eye_degV= eye velocity (unit = degrees/sec)
4. eye_isSac_cha...