* less than 5 years of difference with the patient;
* same educational level (\< baccalaureate/high school degree, baccalaureate/high school degree level, 2-year university degree, \> 2-year university degree);
* person affiliated or beneficiary of a social security scheme;
* signed informed consent form
You may not be if
* no patient's relative for the control group;
* known or suspective cognitive disorders prior to chemotherapy;
* history of severe neurological or psychiatric disorders (e.g., severe depression); .previous chemotherapy;
* previous brain radiotherapy;
* ongoing treatments affecting cognition;
* patient unable to read;
* patient not speaking French;
* person deprived of liberty by judicial or administrative decision;
* person under forced psychiatric care;
* person under legal protection measures;
* person unable to express consent; .pregnant or breastfeeding woman.
* known or suspected cognitive disorders;
* history of severe neurological or psychiatric disorder (e.g., severe depression); .previous chemotherapy;
* previous brain radiotherapy;
* ongoing treatments affecting cognition;
* person unable to read;
* person not speaking French;
* person deprived of liberty by judicial or administrative decision;
