Math format invariance data & code

Here we provide preprocessed fMRI data and analysis scripts used in "Quantitative modeling demonstrates format-invariant representations of mathematical problems in the brain”

The preprocessed data are provided for each participant (sub-01 to sub-08).

The analysis scripts require MATLAB (R2019b) and FreeSurfer.

Ridge regression

ID = 'sub-01';
Method = 'Operator';
Code = 1;
%1: all operators
%2: only single operators
%3: only double operators
Ridge(ID, Method, Code)
Ridge_CrossModal(ID, Method, Code)

Modality invariance and modality specificity

ModInv(ID, Method, Code)
ModInv_MinusRead(ID, Method, Code)
ModSpec(ID, Method, Code)

Representational similarity analysis 

RSM_Group_WholeCortex(Method, Code)

RSM_Group_WholeCortex(Method, Code)
RSM_Group_WholeCortex_MinusRead(Method, Code)

Principal component analysis

PCA_Group_WholeCortex(Method, Code)

If you have any questions, please send an email to nakai.tomoya [at] neuro.mimoza.jp.