Day 5: convolution and correlation

3 / 20 / 2015

Reading

Please read this tutorial on convolution.

Day

• Making a model for the HRF;
• Making a neuronal model;
• Creating the convolution kernel by sampling from the HRF;
• Convolving to make hemodynamic time course;
• Extracting time series (slicing in 4th dimension);
• Correlating the convolved time course with the data.
• Writing our own correlation function.

Exercises

• cd pna/pna2015
• git pull
• cd day5
• ipython notebook

Start with hrf_convolution notebook.

If you have time, go on to the more_correlation notebook.

There is a web page listing of the exercise files at https://github.com/practical-neuroimaging/pna2015/tree/master/day5