AI-generated videos to maximally drive a target brain region

Perceived Risks and Ethical Concerns

• Many see this as a step toward “cognitohazards” and visual superstimuli that could harm or reshape minds.
• Fears center on “row-hammering” brain regions, overworking circuits like stress does, and long-term unknown effects on mood, desire, and agency.
• Some argue this crosses a moral line: knowingly building tools to hijack neural circuitry for non-consensual influence.
• A few liken researchers to historical cases of morally blind scientists and call for much stricter ethics/IRB scrutiny in CS and neuroscience.

Advertising, Addiction, and Manipulation

• Dominant concern: adtech and social platforms using this to auto‑generate maximally addictive, individually optimized content (short‑form video, gambling, porn, kids’ content).
• Seen as a continuation of A/B‑tested fast food, children’s TV, and current feeds—just far more precise and automated.
• Several expect creators to be removed from the loop to keep all value with platforms.

Speculative and Sci‑Fi Analogies

• Thread is full of comparisons: BLIT, Snow Crash, Infinite Jest’s lethal entertainment, Blade Runner’s mood organ, Ludovico Technique, Hypnotoad, horror‑game lab logs.
• These are used both as warnings and as critiques of “Black Mirror panic.”

Technical Understanding and Skepticism

• Supportive commenters emphasize: this is a research tool. A digital twin (encoding model) is trained on fMRI responses to videos, then used to search for new videos that maximally activate chosen visual regions.
• Others are skeptical: fMRI is coarse, voxelwise models assume independence, and the paper (as described) optimizes only in the model, with limited shown validation in real brains.
• Some note the example videos look like unremarkable patterns or screen savers, not magical mind control.

Potential Beneficial Uses

• Proposed positive applications: mapping function before brain surgery, seizure intervention planning, neurorehabilitation, understanding visual areas, possibly better mental‑health treatments.
• A minority suggests “brain massage” or relaxation uses, but others counter that brains need rest, not more stimulation.

Technology, Incentives, and Regulation

• Recurrent theme: the problem isn’t the technique itself but capitalist incentives that push toward addiction, propaganda, and exploitation.
• Suggestions range from strong regulation or bans on mass use, to calls for a STEM “Hippocratic oath,” to personal digital abstinence; some are pessimistic any of these will be sufficient.