Beyond AI Logo

AIによる脳機能拡張(AIを用いた知覚・感性・認知能力の拡張) Expanding Brain Function Using AI (AI-assisted Expansion of Perception, Sensibility, and Cognitive Performance)



研究リーダー Project Leader
池谷 裕二 教授 Yuji Ikegaya Professor
東京大学 大学院薬学系研究科 Graduate School of Pharmaceutical Sciences, The University of Tokyo
研究者 Researchers
  • 佐々木 拓哉 特任准教授 Takuya Sasaki Project Associate Professor
  • 中嶋 藍 助教 Ai Nakajima Assistant Professor
  • 竹内 春樹 特任准教授 Haruki Takeuchi Project Associate Professor
  • 松本 信圭 特任助教 Nobuyoshi Matsumoto Project Assistant Professor
  • 小山 隆太 准教授 Ryuta Koyama Associate Professor







「生」の環境では脳の潜在能力は十分に引き出せない The brain cannot reach its full potential in a “raw” environment


Throughout the history of mankind, we have continuously developed new tools such as letters, money, printing technology, and computers. Every time a new tool developed, our brains adaptively learn how to use it through experience and actively make use of it in our daily lives. This process arises from “plasticity” of the brain. One of the important aspects of plasticity is that the structure and function of the brain circuitry change in response to information obtained through the senses, such as the eyes and ears. Thanks to the plasticity, we are able to learn and remember things. In other words, human beings have not only developed science and technology, but have changed the way how to use their own brains according to the development of science and technology. This fact implies that the brain still has high potentials, but it cannot fully demonstrate that potential while being placed in our current “raw” environments. Therefore, by making the best use of AI, we would like free the brain from the constraints of the body and attempt to bring out its hidden potentials.


Details of Project

脳とAIのハイブリッドで知能を拡張する Brain-AI hybrid to extend intelligence


We will explore “symbiotic emergence” from a hybrid of the brain and AI, and develop a new dimension of perception, sensitivity, and cognition. The “symbiotic emergence” refers to the extension of intelligence that occurs as a result of interactions between the brain and various objects such as the environment, body, and machines, and our goal is to develop AI that can support such interactions. Specifically, we will work on the development of technologies to expand the interfaces and brain capabilities to support interactions between the brain and outside world, as well as technologies for elucidating the principles and mechanisms for understanding interactions and to collect and analyze information that contributes to this understanding.

【1】AIチップがシグナルを感知する [1] Detection of signals by AI chip


The first approach to achieve “symbiotic emergence” between the brain and AI is to use an AI chip with built-in sensory sensors. Signals from the environment and body are detected by sensory devices. Based on the detected information, the AI chip sends stimuli to the brain to make it recognize information that it would not normally be aware of. For example, most Japanese people are not good at differentiating between the R and L pronunciations. Because we grow up hearing Japanese language, our ability to distinguish between R and L pronunciations was lost as a function. The pronunciations of R and L are physically different, but different signals must be sent from the ear to the brain; nonetheless the brain does not discriminate between them. Thus, we can design a AI chip that produce different electric signals depending on the pronunciation, so that the brain can recognize the difference. Repeated use of this device will induce “plasticity” in the brain and expand the ability to distinguish pronunciation.

【2】脳情報を解読し脳機能を高める [2] Decoding brain information to enhance brain function


Another approach is to have AI decode the brain information of individuals and then inform them about the results. In some cases, individuals are not able to utilize external information detected by the brain. Using AI to decipher such hidden assets and inform individuals can help them learn skills quickly, even those that would normally require prolonged periods of training to master. For example, we will use AI to learn skills that require a high level of judgment by integrating information obtained from past experiences and the environment, such as insight to determine a good or bad move by looking at a chess board, or an aesthetic eye when appreciating a painting.


Values / Hopes

根源的な問いに迫り、人間の新しい価値を開拓する Probing fundamental questions and developing new values for humanity

本研究は神経科学と情報科学を中核としながら、精神医学、心理学、教育学を巻き込む形で学術分野横断的な試みです。ここで扱われる問いは、① 知能とは何か、② 知能は拡張できるのか、③ 知能はどう活用されるべきか、の三点です。本研究では、脳とAIのハイブリッドという技術開発とその実装によって、こうした人類の根源的な問いに迫ります。将来的には、動物やヒトが生来感知し得ない知覚や卓越した認知能力(絶対音感や速読など)、あるいは専門性の高さ故に長期の訓練がなければ習得できない感性や巧技(専門家ならではの審美眼や洞察力やひらめきなど)を脳に実装し、人間の発想を増強し、新しい価値をもった次世代インテリジェンスを開拓することが目標です。

This research attempts to transcend academic disciplines by engaging psychiatry, psychology, and pedagogy with neuroscience and information science. The questions to be addressed are: 1) What is intelligence?; 2) Can intelligence be extended?; and 3) How should the intelligence be utilized? In this research, we will approach these fundamental questions through the development and implementation of brain-AI hybrid technology. Our future goal is to augment humanity and develop next-generation intelligence with new values by implementing into the brain perceptions and superior cognitive abilities that animals and humans cannot innately perceive (e.g., absolute pitch, speed reading), as well as sensitivities and skills that cannot be acquired without long-term training (e.g., the aesthetic sense, insight, and inspiration).