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Package for analysis of free recall data.

Project description

Psifr

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Advanced analysis and visualization of free recall data in Python.

In free recall, participants study a list of items and then name all of the items they can remember in any order they choose. Many sophisticated analyses have been developed to analyze data from free recall experiments, but these analyses are often complicated and difficult to implement.

Psifr leverages the Pandas data analysis package to make precise and flexible analysis of free recall data faster and easier. The name Psifr is pronounced "cipher". It's taken from Psi, in reference to the field of psychology, and FR for free recall.

free recall visualization
Raster plot showing each recall in a free recall experiment. Color indicates serial position; yellow items were presented late in the list, while purple items were presented at the beginning. Magenta squares indicate intrusions of items that were not presented during the study list.

Quickstart

See the Jupyter notebooks for demonstrations of reading and analyzing a sample free recall dataset:

See the user guide for more details.

Installation

First get a copy of the code from GitHub:

git clone git@github.com:mortonne/psifr.git

Then install:

cd psifr
python setup.py install

Importing data

Generally the best way to get your data into shape for analysis in Psifr is to create a CSV file with one row for each event in the experiment, including study events (i.e., item presentations) and all recall attempts (including repeats and intrusions). See importing data for details.

If you have data in the standard EMBAM format, use scripts/frdata2table.m to convert your data struct to a table with standard format. Then use the Matlab function writetable to write a CSV file which can then be read into Python for analysis.

Related projects

EMBAM

Analyses supported by Psifr are based on analyses implemented in the Matlab toolbox EMBAM.

pybeh

pybeh is a direct Python port of EMBAM that supports a wide range of analyses.

Quail

Quail runs automatic scoring of free recall data, supports calculation and plotting of some common free recall measures, and has tools for measuring the "memory fingerprint" of individuals.

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