Increased sense of humor + Dextromethorphan
Dextromethorphan is known to produce increased sense of humor, a cognitive effect. A general amplification of one's sensitivity to finding things humorous and amusing, often causing previously unremarkable stimuli to become inexplicably hilarious, with laughter triggered by observations and connections that seem profound or absurd in the altered state.
About Increased sense of humor
Increased sense of humor is a cognitive effect characterized by a noticeable enhancement of one's propensity to find stimuli amusing, funny, or absurd. During this state, the threshold for what triggers laughter or amusement is significantly lowered, and a person may find themselves chuckling or laughing at observations, thoughts, wordplay, visual details, or social situations that would normally produce little or no humorous response. The effect goes beyond simply being in a good mood — it represents a genuine shift in cognitive processing that causes the brain to more readily detect incongruity, absurdity, and comedic patterns in both external stimuli and internal thought processes.
The nature of the humor experienced during this state often takes on a distinctive character that differs from sober amusement. Users frequently report finding profound humor in observations about the nature of existence, the absurdity of social conventions, or the strangeness of everyday objects and behaviors that are normally taken for granted. There is often a quality of childlike wonder and fresh perspective, as though one is seeing the inherent oddity and comedy of the world for the first time. Wordplay, double meanings, and linguistic patterns become inexplicably hilarious. Visual details — a person's facial expression, the way an object is shaped, the pattern on a piece of fabric — can suddenly strike one as impossibly funny for reasons that are difficult to articulate.
This effect is most commonly induced under the influence of cannabis, where it is one of the most well-known and culturally recognized effects, often colloquially referred to as "the giggles." It is also frequently produced by psychedelic compounds such as LSD, psilocybin, and mescaline, particularly during the come-up and early peak phases. Nitrous oxide is strongly associated with fits of laughter and humor enhancement, and MDMA can produce a more gentle, warm-toned amusement centered around social interactions. Low doses of certain dissociatives can also produce this effect, as can some GABAergic compounds like alcohol and GHB.
In social settings, increased sense of humor becomes particularly pronounced and contagious. The experience of witnessing another person laughing intensely for no apparent reason can itself become a powerful trigger for amusement, creating feedback loops in which a group of people find themselves laughing hysterically at the shared absurdity of not being able to stop laughing and not knowing what started the laughter in the first place. These episodes of contagious group laughter are among the most memorable and bonding experiences reported by users of psychoactive substances in social contexts, and they can persist for extended periods as each person's laughter continually re-triggers amusement in the others.
Increased sense of humor is generally considered one of the most pleasant and benign effects of psychoactive substance use. It can serve a valuable tension-releasing function during potentially anxious moments of a psychedelic experience, and many users deliberately seek out humorous content or companionship specifically to enjoy and amplify this effect. The cognitive shift it produces — toward finding joy, absurdity, and lightness in existence — is sometimes reported to persist in subtle ways even after the substance has worn off, as the fresh perspectives on what is funny or absurd can leave lasting impressions on one's sense of humor and outlook on life.