DEVICE WHICH COMPRISES A PHYSICAL ACTIVITY AND POSITION SENSOR, A PERIPHERAL TEMPERATURE SENSOR AND A LIGHT SENSOR FOR PROVIDING INFORMATION RELATING TO THE STATE OF THE CIRCADIAN SYSTEM

The invention is a device consisting of at least one body position and activity sensor, at least one peripheral temperature sensor and at least one light sensor, configured to provide information on the circadian system status and the sleep-wake status of an individual based on the data obtained from said sensors. It can be placed on the wrist of the subject, or on the subject's arm. The device may also include a blood pressure sensor. This device may be used in general studies of the human circadian system and, more specifically, for the study of sleep-wake and blood pressure rhythms. La invención es un dispositivo que comprende un sensor de posición y actividad corporal, un sensor de temperatura periférica y un sensor de luz, que ofrece información del estado del sistema circadiano y del estado de sueño-vigilia de una persona y que puede ir colocado en la muñeca de una persona. El dispositivo también puede incluir un sensor de presión arterial. Este dispositivo puede aplicarse al estudio del sistema circadiano humano en general y al estudio de los ritmos de sueño-vigilia y de presión arterial, en particular.