A total of 40 participants (20 non-consecutive adults with a moderate or severe TBI and 20 volunteers with any history of neurological or psychiatric disease) will be recruited into the study. The duration of the protocol is 70 minutes. As regards the assessment, three questionnaires will be administered in order to evaluate self-defining memories, apathetic manifestations and anxio-depressive symptoms. In addition, four cognitive measures will be used to assess verbal episodic memory, working memory, cognitive flexibility and verbal fluency.