The present invention estimates, with high accuracy, a target image that is being recalled by a person. A recalled image estimation device (10) is provided with: a multi-point electric potential measurement unit (1) which measures electric characteristics of the brain of a person at multiple measurement points in a brain region including a visual association cortex; a decoder (2) which, from the electric characteristics measured while the subject is visually recognizing candidate images, estimates decoding information indicative of the content of a target image being recalled by the person; and an image determination unit (3) which, on the basis of the estimated decoding information, determines a candidate image for causing the person to perform visual recognition.
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