Provided is a detection apparatus and detection method. The detection apparatus includes an imaging unit that images a subject and an eye gaze detector detects the subjects eye gaze direction based on a captured image. A diagnostic image is displayed that includes an image including a face image and a geometric pattern image. A first gaze point is detected as a gaze point of the subject in the person image based on the eye gaze direction and a second gaze point is detected as a gaze point of the subject in a determination region in the geometric pattern image.
