# Day 10¶

## Lesson plan¶

We will go over the OpenFMRI notes.

We will then download and extract a dataset in class, and explain the directory structure and how to read the data.

Next we will do a couple of exercises with some introduction before each.

• BOLD images;
• Revision of nibabel load, get_data;
• Images with three and four dimensions;
• Summary functions work on all dimensions unless you tell them otherwise; use axis= to tell them otherwise;
• Negating booleans with ~bool_arr

Then we will do the Into four dimensions exercise.

• Brain cartoons, and the frontal lobe;
• Gray matter, white matter, CSF;
• Block designs and event-related designs;
• Repetition time (TR) is the time between the beginning of acquisition of one volume and the beginning of the next;
• np.loadtxt loads text files into numpy arrays;

Now we do the A first go at finding brain activation exercise.