# Japanese scientists identify neural mechanism that may explain why we dislike people

> **Open Intelligence Dossier** · First detected: 2026-07-11 08:07 UTC · Category: Health

## Executive Summary
Researchers at the University of Tokyo have identified the neural circuitry that governs how the brain transitions from liking to disliking others.

## Intelligence Brief
Scientists in Japan have identified a specific neural mechanism that may explain the biological basis for why humans develop feelings of dislike toward other people. According to reports from The Japan Times and nippon.com, the research focuses on unraveling the brain mechanisms behind the feeling of hate. The study, led by researchers from the University of Tokyo, utilized experiments involving mice to decode brain circuitry. By using light to manipulate the sensation of disgust, the team was able to observe how the brain updates its emotional associations, effectively transforming a perceived friend into a foe. Coverage from multiple outlets, including Tech Times and The Transmitter, emphasizes the discovery of a brain circuit that can rewrite emotional bonds. The reporting highlights a specific phenomenon where emotional bonds are rewritten after an instance of betrayal.


A critical finding noted in these reports is that while the emotional bond is altered to a negative state, the underlying memory of the individual remains intact. This suggests that the brain separates the factual memory of a person from the emotional value assigned to them during the updating process. This discovery provides essential context for understanding the volatility of social bonds and the neurological roots of aversion. As reported by finance.biggo.com, the ability to manipulate the brain's disgust response using light in mouse models is not merely an academic exercise in social psychology. The coverage specifies that decoding these specific brain circuits is paving the way for potential medical applications, specifically in the development of treatments for depression. Understanding how these circuits function allows researchers to better grasp how negative emotional states are anchored in the brain.


Looking forward, the focus remains on how these findings in mouse circuitry translate to human behavior and clinical treatment. Based on the reports, the next steps involve further exploring the intersection of memory and emotional updating. Observers will be watching for further developments from the University of Tokyo regarding the application of this circuitry research toward depression therapies. Coverage does not yet specify a timeline for human trials or the specific nature of the light-based manipulation beyond the initial mouse experiments.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| finance.biggo.com | University of Tokyo Manipulates "Disgust" with Light: Mouse Experiments Decode Brain Circuitry, Paving Way for Depression Treatment | [Source Link](https://news.google.com/rss/articles/CBMidkFVX3lxTE4xT1gzTUtpeTJ1dE9qYlJDTHFLV0Q0ZmtNWEs2TFhSTlpVRVFFbUkyczNGdDhzc1o5SF9OVmJOUnRXUEc4N0VwRFNyd1hvNVp2WlJyUExXVEtwdkk1TU4taE1NTVpJLUdoMVRyZnk4LXA3OVc0SXc?oc=5) |
| nippon.com | Japan Study Unravels Brain Mechanism behind Feeling Hate | [Source Link](https://news.google.com/rss/articles/CBMiXEFVX3lxTFBTLXRSNGlRVllOWTQ5OTlMa0czN1Jhc2JMaC1TeVpNQ1BhbXg2dEc3TDFWS0NFSnU1MVItdGVKc09oMzFUdklvaGNtMERrZGF3UWpBc1lTWE43Uldr?oc=5) |
| Tech Times | New Brain Circuit Rewrites Emotional Bonds After Betrayal, Leaves Memory Intact | [Source Link](https://news.google.com/rss/articles/CBMizgFBVV95cUxNZjdVTDNzRVZXZDFqLW1mQm8ta0JIVWs0SThaVFlsY0Z6dWd5aENZSUxqemZrcXY4eGZJX0YwdVlTOXFZSGpJOGhfRHd4TzRxd01Uc2duME1QdmxacGthZ3JjRVJpMnNhZjlqTFNaUmVlVkhCZnJKSFhKQ0w4RGs4SjVtVG8xNXp4MXFKbWROWi1VUVI4cjVFTmFrTzY2NklZc3ZkSU93c3M4RW00TFdqdndHQ2syMVRBaGJJSDYyWWp6LXFiZDJLZkJBTjhGUQ?oc=5) |
| The Transmitter | From friend to foe: How the brain updates feelings toward others | [Source Link](https://news.google.com/rss/articles/CBMisAFBVV95cUxPUUsxRFVzSHM0UUdiMThrUzJYRWI0QkRrZWp4S1ozTkNicTZwSmozR3l3RDhCU0k2NDZLb2JNOTE4eDlZS2p4UmhfbW50R3huaThZekV0THZqU0hkaHhNajVSdWVkTmtCdTl6Yl93OEpsaUgwcDQyRERrRnNPMUZqajI3YjFlZF9wWXYwdlp4YXlyOHI1Z0wxR3pLX2N5Vi1FS0hoN2VWMUgwUDVBa0pUWg?oc=5) |
| The Japan Times | Japanese scientists identify neural mechanism that may explain why we dislike people | [Source Link](https://news.google.com/rss/articles/CBMikwFBVV95cUxQYjdFTGZ1enpTYm82MU43NXhKTHJOM1BiaHNXYnJKNlFJalMtUWd6OWFpcE1TcUM4dlBrVE4yOTlxZkVhZDBoZ29GWXhwRFZfeHNmR1Jyd3RQNDdDVDdKbTNyVjJVTUxZa0o0XzI1YmxyeHpsa3dNN1QxVVdOZlBTckYycjNYZHNERDBRN1h6SVFWc00?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-07-11/japanese-scientists-identify-neural-mechanism-that-may-explain-why-we-dislike*