Spectral Tilt

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Spectral tilt refers to vocal effort and intensity. According to , it denotes the way individuals emphasize and enunciate words and syllables in speech. Cannabis users tend to exhibit reduced spectral tilt, meaning their vocal effort and intensity in speech is diminished. This results in less enunciation and accenting of particular words and syllables compared to non-users, who would typically have more vocal variation and clear articulation when speaking 1.

Cannabis and Speech

Andrew discusses how cannabis use affects speech by reducing spectral tilt and changing verbal timing, resulting in less enunciation and accenting of words and syllables. He shares examples from a study that evaluated the speech of cannabis users and non-users.
Huberman Lab
The Effects of Cannabis (Marijuana) on the Brain & Body | Huberman Lab Podcast #92
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