COSplay (Contrast optimized stimulus player) is a Python based software solution for the deliveriy of stimulus sequences in stimulus evoked fMRI experiments. It is fully compatible with the stimulus sequence optimization package COSgen.

• TTL trigger from MRI scanner can be used
• 3 TTL output channels (3.3V) and 3 transistor channels
• Microcontroller can be used standalone (c.f. Standalone use section in the docs)
• Stimulus pulse delivery with ms or μs accurary
• Random selection of a sequence from a sequence library
• Piping of sequence file to the directory of the latest scan on the MRI computer
• Error message forwarding to computer

COSplay can be installed using Python's setuptools.

git clone https://github.com/IBT-FMI/COSplay.git
cd COSplay
python setup.py install --user

Note: setuptools will not manage any dependencies. You will have to install Dependencies manually, e.g. using pip install pyserial.

• Python 2.7 or Python 3.5 and newer
• PySerial 3.3 or newer
• Setuptools 20.7 or newer

• PyBoard 1.1
• microSD (recommended)
• USB cable (A to micro-B)