Day 5: convolution and correlation

3 / 20 / 2015


Please read this tutorial on convolution.


  • 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.


  • 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