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.
See Working with four dimensional images, with some revision:
- 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;
See Reading numerical data from text files
Now we do the A first go at finding brain activation exercise.