Quite often when we’re asking these difficult questions we’re asking about questions where we might not even know how to ask where the line is. But in other cases, when researchers work to advance public knowledge, even on uncontroversial topics, we can still find ourselves forbidden from doing the research or disseminating the research.
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In brain decoding, we take our model that we’ve developed of the brain (and this can be a model for anything, vision or language) and we reverse it. And instead of going from the stimulus to the brain activity, we go from the brain activity back to the stimulus.