Information processing system, information processing apparatus and method

Abstract

The confidence level is objectively evaluated without involvement of user's subjective evaluation, and the contents to be outputted are decided based on that objective evaluation. An information processing system comprises an input part that receives a user's input; a signal determining part that determines a signal related to an event-related potential of the user electroencephalogram; a determining part that determines, based on a negative shift amount of the event-related potential during a predetermined interval after reception of the input, a user's confidence level for the input; a control part decides, based on the confidence level, contents to be presented to the user; and an output part that presents the decided contents to the user.

Description

Technical field [0001] The present invention relates to a technology for providing information and services to users. More specifically, the present invention relates to a machine, a method and a computer program running in the machine that utilizes the user's brain waves and other biological signals to select and provide appropriate information and services. Background technique [0002] In recent years, the development of a learning system that prompts questions, accepts user input and answers, and evaluates right and wrong has been progressing. In a learning system, in order to improve learning efficiency, it is necessary to infer the user's understanding of learning with high accuracy. This is because if the user’s level of understanding can be estimated with high accuracy, it is possible to present questions according to the level of understanding, and to appropriately adjust the content of the feedback to the answer. [0003] In the above learning system, the degree of conf...

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Problems solved by technology

[0008] In the learning system described in Patent Document 1, it is indispensable for the user to answer the questionnaire, which prevents the user from concentrating on the subject and is an annoying burden on the user.

In addition, since the subjective evaluation of user confidence will affect the results for various reasons, and there is a large room for action behavior, the user's confidence may not be correctly represented

[0009] In addition, in the device described in Patent Document 2, since an expected deviation signal component that appears about 600 ms from the output time of the device is used, only the content that has already been output can be changed.

That is, the machine cannot adjust what is output at a point in time before the expected deviating signal component occurs

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