[French translation of the Frankfurt Complaint Questionnaire (Frankfurter Beschwerde-Fragebogen, FBF, Süllwold, 1986)].

Observable behaviors play the predominant role in the clinical assessment of schizophrenia, while only secondary emphasis is placed on exclusively subjective complaints. Huber employed the phenomenological approach to obtain subjective symptoms that he named "basic symptoms". Subjective symptoms constitute an important component of the schizophrenic symptomatology. They may play a predominant role during the prodromal or early phases of the disease, they may be useful in elucidating cognitive and perceptual disturbances in schizophrenia. In the last decade, the assessment of patients' subjective experiences has acquired significance with the development of several instruments for their specific evaluation. The Frankfurt Complaint Questionnaire (FCQ, Süllwold, 1986) is the instrument most widely used in Europe for assessing subjective experiences. It covers a wide range of complaints of cognitive deficits that Süllwold compiled from the complaints of schizophrenic patients. We present the French translation of the FCQ. The availability of the FCQ in French could be an important step in promoting the study of subjective experiences in research and clinical activities.