An intracortical-detection device including: at least one electrode (6) that contacts a group of neurons； a first body (3), forming a surface (30) that contacts a portion of a cerebral region； a first motor (8) that moves the electrode with respect to the first body； a second motor (10)； and a second body (4), operatively connected to the second motor, the first and second bodies being able to slide with respect to one another in a first direction (x), under the action of the second motor. The detection device moreover includes a sensor (42, 44, 55) generating an electrical signal indicating a pressure exerted by the portion of cerebral region on the surface.
