{ "cells": [ { "cell_type": "markdown", "id": "5e9a73d4-ccdb-4971-b8cb-34ffaee3cac6", "metadata": {}, "source": [ "# **--- `DatasetEphy`: container of neurophysiological data ---**\n", "---\n", "In this tutorial we're mainly going to see how to define a container hosting the neurophysiological data of one or several subjects." ] }, { "cell_type": "code", "execution_count": 1, "id": "6437bce7-384e-4779-b04d-6ca6a1b8be29", "metadata": {}, "outputs": [], "source": [ "import os\n", "\n", "import numpy as np\n", "import xarray as xr\n", "import pandas as pd\n", "\n", "from mne import EpochsArray, create_info\n", "\n", "from frites.dataset import DatasetEphy\n", "\n", "import matplotlib.pyplot as plt" ] }, { "cell_type": "markdown", "id": "f847437b-9ad9-4a48-85d6-2c4bb9aa605b", "metadata": {}, "source": [ "---\n", "# **--- ROOT PATH ---**\n", "\n", "
\n", "\n", "Define the path to where the data are located !\n", "
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\n", "\n", "**[Instructions]** Load the data, behavior and anatomy of subject #0\n", "
" ] }, { "cell_type": "code", "execution_count": 15, "id": "194ac176-e297-44dc-85fd-c4a605fd4241", "metadata": {}, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "Loading the data of subject #0\n" ] } ], "source": [ "# write your answer\n", "subject_nb = 0\n", "hga0, anat0, beh0 = load_ss(subject_nb)" ] }, { "cell_type": "markdown", "id": "8c8f370f-d756-48ea-acfb-d42ee9bdf7ea", "metadata": {}, "source": [ "## **2. `DatasetEphy` with the Prediction Error**\n", "### 2.1 Plot the Prediction error\n", "\n", "In the behavioral table (output `beh` of the function `load_ss()`) there's a column called `'PE'` which stands for `prediction error`. This model is estimated using the behavior of the subject. It represents the mismatch between a prior expectation of the future outcome and the actual outcome obtained (i.e. $Outcome_{expected} - Outcome_{obtained}$).\n", " \n", "Said differently, it's kind of a learning curve estimated trial after trial, where at the beginning the subject is not really good at predicting the outcome he's going to obtained (PE very high) but at the end, he nails it like a pro (PE at 0) ! \n", "\n", "The table `beh` also contains a column `block` indicating the session (or block).\n", "\n", "\n", "\n", "**[Instructions]**\n", " \n", "Let's start \"easy\" by plotting the PE, only for the first block. You should see it decreasing to almost 0 !\n", "