IFAS Creativity and Problem-Solving Experiment

The IFAS Creativity and Problem-Solving Experiment was an early attempt to test whether LSD could assist creative work rather than serve only as a treatment for illness. At the International Foundation for Advanced Study, James Fadiman and Willis Harman gave a relatively light dose to artists, engineers, architects, and scientists who had become stuck on particular projects. Participants described more fluid thinking and developed solutions they considered novel and effective. The experiment offered a glimpse of a possible use for LSD, but its design also exposed how difficult it was to separate a drug’s effects from the expectations and circumstances surrounding it.

From therapy toward creative work

The study belonged to a wider shift in psychedelic research. In the mid-1950s, the emerging model of psychedelic therapy proposed a single high-dose session intended to produce a profound change in outlook, rather than a series of ordinary talking sessions. This approach unsettled established psychiatric categories: it joined treatment to spiritual experience and placed unusual importance on the relationship between patient and therapist and on the session’s surroundings.

The International Foundation for Advanced Study pursued questions that reached beyond conventional medicine. Its research included whether LSD might enhance creativity and problem solving, an uncertain proposition: an intense experience could just as easily draw someone away from a task as help resolve it. The foundation’s wider reports also described lasting changes in clients’ attitudes and beliefs, while acknowledging that some participants made major changes in their marriages after sessions. Creativity research therefore formed part of a broader inquiry into how psychedelic experiences might affect thought and conduct, not a simple assumption that the drug reliably improved performance.

Design and conduct

Before testing participants, Fadiman and colleagues tried the task themselves. They took 100 micrograms of LSD and assessed whether they could design a credible experiment while under its effects. They concluded that they could, then organized the research in groups of four. Fadiman and Harman administered the same dose to participants drawn from several fields, each of whom brought a specific work problem on which progress had stalled.

The researchers deliberately shaped participants’ expectations and surroundings. They told them to expect unusual intellectual capacity and success in solving problems, and Fadiman later recalled using an extensive range of set-and-setting techniques. This was not an incidental feature: the experiment treated the experience’s context as part of the method, even as that choice made it harder to identify what the drug itself had contributed.

Participants reported that their thinking became more fluid, that they could visualize problems more readily, and that they were better able to see them in a different context. Fadiman and Harman were impressed by the number of solutions they judged both novel and effective. Among the participants were William English and Douglas Engelbart, figures who would become associated with later changes in computing. Their inclusion suggests the experiment’s reach into technical and design work, but it does not by itself establish that LSD caused their later achievements.

Evidence and limitations

The study could not establish its claims by the standards of a controlled trial. It had no control condition, relied on participants’ own assessments of their success, and stopped before completion. Its encouraging results therefore remained preliminary. The researchers’ deliberate encouragement of confidence and the strong expectations surrounding psychedelic experiences further complicated interpretation: participants might experience what they had been led to anticipate, making reported improvement difficult to attribute to the drug alone.

These difficulties were part of a larger problem for psychedelic research. The experience was understood to be highly shaped by expectation, while the influence of Set and setting made it difficult to isolate a single variable. Later researchers confronted the same challenge in clinical trials, where participants and guides could often tell whether LSD or another psychedelic had been administered, and where the therapeutic context could not readily be separated from the drug’s pharmacological action. The IFAS experiment’s suggestive findings and its methodological weaknesses were thus intertwined: the conditions that the researchers considered useful to creative work were also conditions that limited what their results could prove.

Legacy and significance

The experiment pointed toward a possible research question—whether a psychedelic session could help people reframe a difficult problem—without settling it. Its value lies partly in the tension between a practical outcome and an experience difficult to measure by ordinary experimental methods. The participants’ reports gave the researchers a reason to pursue the question, but not grounds for treating the reported gains as independently verified effects.

The project also belonged to a period when psychedelic inquiry was moving beyond psychotherapy toward wider ambitions for personal and cultural change. At the International Foundation for Advanced Study, that expansion was accompanied by growing tension between empirical research and spiritual approaches; Sidney Cohen, who had joined its board, resigned in 1957 amid this divide. The foundation closed by 1966. The creativity experiment remained an unfinished line of inquiry: evidence of a promising avenue, but not a controlled demonstration that LSD could reliably make people more creative.