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Our brains respond differently to human and AI-generated speech, but we still struggle to tell them apart - EurekAlert


People are not very good at distinguishing between human voices and voices generated by artificial intelligence (AI), but our brains do respond differently to human and AI voices, according to research presented at the Federation of European Neuroscience Societies (FENS) Forum 2024. The research also suggests that we tend to assume happy voices are human, even when they are AI, and we tend to assume neutral voices are AI, even when they’re human, especially when the neutral voice is female. Researchers think this last finding could be due to our familiarity with Alexa and Siri. 

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