 The study validates the Mini-Mental State Examination Test administered by the Pepper Robot equipped with systems to detect psychophysical and emotional states in older patients, showing that cognitive status is not a determinant in the effective use of a social robot. People with mild cognitive impairment appreciate the robot's interaction, and acceptability does not strictly relate to user experience but willingness to interact with the robot is an important variable for engagement. The study demonstrates the feasibility of a novel approach that could lead to more natural human-machine interaction when delivering cognitive tests with the aid of a social robot and a computational psychophysiology module, CPM. This article was authored by Sergio Rousseau, Letizia LaRousseau, Grazia de Nofrio, and others.