An Optogenetic Platform for Freely Moving Animal Applications

Dimitris Firfilionis, JunWen Luo, Patrick Degenaar

2018

Abstract

In this paper, we present an optogenetic platform with simultaneous electrical recording and optical stimulation, combined with closed-loop processing capabilities. The neural interface Application Specific Integrated Circuit (ASIC) placed on the head-stage provides four low noise (1.15 μVrms) recording channels, targeting Local Field Potential (LFP) recording. For stimulation it provides six independently addressable optical driver circuits, which offer both intensity and pulse-width modulation for high radiance LEDs. The ASIC also includes a fully-digital Serial Peripheral Interface (SPI) embedded within a Finite State Machine (FSM). This allows the ASIC to be controlled by external embedded controllers. The low power microcontroller used in this system is part of the Kinetis K22F sub-family (ARM Cortex M4), and is responsible for controlling the ASIC and storing the recorded data in a 1GB μSD card. Apart from the neural interface ASIC, which was implemented on a 0.35 μm CMOS technology, the head-stage and embedded control units were built using off-the-self components and rigid PCBs. The embedded control unit PCB occupies a space of 25x22 mm, while the head-stage has a size of 10x10 mm. The two units are connected via a 10-way Flat Flexible Cable (FFC), which provides power and clock signals, and bidirectional communication though the SPI interface.

Paper Citation

in Harvard Style

Firfilionis D., Firfilionis D., Luo J., Luo J., Degenaar P. and Degenaar P. (2018). An Optogenetic Platform for Freely Moving Animal Applications.In NEUROTECHNIX 2018 - Extended Abstracts - Volume 1: NEUROTECHNIX, ISBN , pages 3-5

in Bibtex Style

@conference{neurotechnix18,
author={Dimitris Firfilionis and Dimitris Firfilionis and JunWen Luo and JunWen Luo and Patrick Degenaar and Patrick Degenaar},
title={An Optogenetic Platform for Freely Moving Animal Applications},
booktitle={NEUROTECHNIX 2018 - Extended Abstracts - Volume 1: NEUROTECHNIX,},
year={2018},
pages={3-5},
publisher={SciTePress},
organization={INSTICC},
doi={},
isbn={},
}

in EndNote Style

TY - CONF

JO - NEUROTECHNIX 2018 - Extended Abstracts - Volume 1: NEUROTECHNIX,
TI - An Optogenetic Platform for Freely Moving Animal Applications
SN -
AU - Firfilionis D.
AU - Firfilionis D.
AU - Luo J.
AU - Luo J.
AU - Degenaar P.
AU - Degenaar P.
PY - 2018
SP - 3
EP - 5
DO -