RoSco Schematics

<p>This zip file contains the complete schematics for RoSco. RoSco - Rodent Scope - A user-configurable digital wireless telemetry system for freely behaving animals.</p

RoSco Firmware and Documents

<p>This zip file contains the source code, development manual and user manual for the RoSco module. RoSco - Rodent Scope - A user-configurable digital wireless telemetry system for freely behaving animals.</p

Comparison of characteristic unit spikes from the RoSco and Axona systems.

<p>(a, b) Waveforms were isolated from two units (blue – unit 1; red – unit 2) using (a) RoSco (RMS SNR range 2.0–3.1) and (b) Axona (RMS SNR range 1.8–2.8). Scale bars at top right are 500 µs and 50 µV for x-axis and y-axis respectively. (c) Example dimensions from the unit clustering, for the two units in a and b, obtained using the WaveClus package for the RoSco (top) and Axona (bottom) data. Both dimensions are unitless feature space.</p

Wireless transmission error rate with diversity reception.

<p>Box plot of the error rate at 10</p

Antenna radiation profile.

<p>Measured horizontal plane radiation profile of the rat head-mounted module (vertical polarization).</p

Comparison between RoSco and existing systems.

<p>*Note that the HermesD system is designed for primates.</p

Block diagram of RoSco.

<p>The head mounted module connects to the rodent's head stage. The base station module connects to a PC running USB audio software. Bidirectional communication allows transmission of neural data to the PC, and configuration data to the rat mounted module. The RoSco has one communication module which includes two transceivers that simultaneously operate in parallel to transmit the neural waveform through a single combiner and antenna. The base station module has diversity reception with two communication modules that simultaneously receive the same entire neural waveform in parallel. This provides redundancy and if data packets are missing from one stream the base station can still reconstruct the full neural waveform.</p

Diagram of one signal amplification and conditioning channel.

<p>The diagram shows how the reference, band pass filter and gain can be configured. Note the programmable gain amplifier (PGA) is a part of the microcontroller saving a large number of external components and electronic complexity.</p

Wireless transmission error rate.

<p>Box plot of the error rate versus the distance between the rat module and the midpoint between the antennas. The figure shows that the practical limit for this wireless system with the given antenna configuration is 10</p

Characteristic unit spikes captured by RoSco in the outdoor enclosure.

<p>The unit spikes were taken from three wires on one tetrode. (a) The characteristic spike waveforms of two units. SNRs (RMS) are between 1.3 and 2.8 depending on the unit and the wire. Scale bars in top right are 500 µs and 50 µV for x-axis and y-axis respectively. (b) Example dimensions from the unit clustering obtained using the WaveClus package. Both dimensions are unitless feature space.</p