System, recording medium and method for estimating user's psychological state

摘要

The system in one embodiment of the present disclosure includesA light source that emits pulse light emitted from a user's headAt least a portion of the reflected pulsed light returned from the head is detectedA photodetector that outputs one or more signals in response to at least a portion of the intensity of said reflected pulse light;Control the light source and the photodetectorAn electrical circuit for processing one or more signals output from said photodetectorA memory for storing an emotion model showing the relationship between one or more signals and a plurality of emotions.The electrical circuit selects at least one emotion from the plurality of emotions by referring to the emotion model based on changes in one or more signals.The one or more signals include a first signal corresponding to the intensity of the first portion of the reflected pulse light and a second signal corresponding to the intensity of the second portion different from the first portion of the reflected pulse light.The first portion includes portions before the start of the downfall period, and the second portion includes at least a portion of the downfall period.