Glossary

The main molecular target through which classical psychedelics produce their perceptual, cognitive, and therapeutic effects.

A period following a microdose characterized by elevated mood, increased openness, and greater psychological flexibility.

A substance that binds to a receptor and activates it, mimicking the action of a natural signaling molecule.

A substance that binds to a receptor but blocks its activation, preventing the natural or drug-induced signal.

Your normal, everyday state of mood, energy, and cognitive function when not under the influence of any substance.

A key protein that supports the survival, growth, and strengthening of neurons and synapses.

The proportion of an administered substance that reaches systemic circulation and is available to produce effects.

The process of filling pre-measured amounts of powdered material into gelatin or vegetarian capsules for convenient and consistent dosing.

A structured scientific study designed to evaluate the safety and efficacy of a treatment in human participants under controlled conditions.

The mental ability to switch between thinking about different concepts, adapt to new information, and consider multiple perspectives simultaneously.

A subjective feeling of being meaningfully connected to other people, nature, or the broader universe.

A medical or psychological condition that makes a particular treatment or substance inadvisable or potentially dangerous.

A drug or chemical whose manufacture, possession, and use are regulated by government legislation due to its potential for abuse or dependence.

A thought process that focuses on finding the single best solution to a well-defined problem through logical reasoning and evaluation.

When tolerance to one substance also reduces the effects of a different substance acting on the same receptor.

The removal or reduction of criminal penalties for the personal possession or use of a substance, without making it fully legal.

An interconnected group of brain regions most active during rest, self-reflection, and mind-wandering — closely associated with our sense of self.

The process of thoroughly drying biological material to remove moisture, preventing degradation and enabling accurate weighing.

A thought process that explores many possible solutions by generating a wide variety of ideas in an open-ended, spontaneous way.

A systematic record of each microdose taken — including date, time, substance, amount, and relevant context.

A graph showing the relationship between the amount of a substance taken and the magnitude of its effect.

A research design where neither the participants nor the researchers know who is receiving the treatment and who is receiving the placebo.

A decrease in the number or sensitivity of receptors on a cell's surface in response to repeated stimulation — the primary mechanism behind psychedelic tolerance.

When one substance affects the activity, metabolism, or effects of another substance in the body.

The experience of losing the sense of a separate self, often described as merging with one's surroundings or a feeling of unity.

The ability to effectively manage, modulate, and respond to emotional experiences in healthy and adaptive ways.

A psychoactive substance used in spiritual, religious, or shamanic contexts to induce altered states of consciousness for the purpose of connecting with the divine or sacred.

The phenomenon where your expectations about a substance influence the actual effects you experience.

An optimal state of consciousness where a person is fully immersed in an activity, experiencing effortless focus, intrinsic motivation, and peak performance.

The time required for the concentration of a substance in the body to decrease by half.

A set of evidence-based strategies aimed at minimizing the negative health and safety consequences of substance use.

The process of thoroughly mixing or grinding material to ensure uniform distribution and consistent potency throughout.

A rare condition where visual disturbances persist long after a psychedelic experience has ended.

The active process of weaving insights, feelings, and shifts from a microdosing experience into everyday life.

A peer-support group meeting where individuals share and reflect on their psychedelic or microdosing experiences in a confidential, non-judgmental setting.

A clear, conscious purpose defined before a microdosing session — providing a reference point for reflection and integration.

The practice of writing down thoughts, feelings, observations, and insights before, during, or after microdosing sessions.

A standard psychoactive dose that produces pronounced perceptual, cognitive, and emotional changes — a "trip."

The practice of regularly consuming very small amounts of a psychedelic substance — typically 5–10% of a full dose — to achieve subtle improvements in mood, focus, or well-being without experiencing a "trip."

The practice of paying attention to the present moment with openness, curiosity, and without judgment.

Your current mental and emotional state before taking a microdose — the "set" in set and setting.

The daily practice of recording your emotional state to observe patterns and changes over a microdosing protocol.

The scientific study of fungi, including mushrooms, molds, and yeasts — encompassing their genetics, biochemistry, ecology, and practical applications.

The process of generating new neurons in the brain, primarily in the hippocampus.

The brain's ability to reorganize itself by forming new neural connections throughout life.

A negative outcome that occurs due to a person's expectation or belief that a treatment will cause harm, rather than from the treatment itself.

A scheduled day within a microdosing protocol when no dose is taken, allowing receptors to reset and preventing tolerance.

A day in the microdosing protocol when a microdose is taken, typically in the morning.

A personality trait from the Big Five model reflecting curiosity, imagination, appreciation for art and beauty, and willingness to try new experiences.

A class of organic compounds characterized by a phenyl ring attached to an amino group via a two-carbon chain. Several psychedelic substances belong to this family.

A measurable improvement in health or behavior that occurs due to a person's belief in a treatment rather than the treatment's pharmacological action.

The natural differences in active compound concentration between different samples of the same substance.

A structured schedule that defines when to take microdoses and when to rest, typically over a 4–8 week cycle.

The knowledge, skills, and critical thinking ability needed to make informed decisions about psychedelic substances and navigate the psychedelic landscape responsibly.

The current resurgence of scientific research, cultural interest, and policy reform surrounding psychedelic substances after decades of prohibition.

A therapeutic approach that combines psychedelic substances with professional psychological support in a structured clinical setting.

A person who systematically explores altered states of consciousness, particularly through the use of psychedelic substances, with an emphasis on self-discovery and inner exploration.

A compound that rapidly promotes structural and functional neural plasticity — new dendrites, synapses, and neural connections.

A chemical testing method used to identify or verify the presence of specific substances using color-changing reactions.

A neurotransmitter involved in regulating mood, sleep, appetite, and cognition. The primary system through which psychedelics exert their effects.

A potentially dangerous condition caused by excessive serotonin activity in the nervous system, typically from combining multiple serotonergic drugs.

The combination of your internal psychological state ("set") and external physical/social environment ("setting") — the two most important factors shaping any psychedelic experience.

The practice of tuning into physical sensations during or after a microdosing experience, bridging the mind-body connection.

A combination of substances taken together to enhance or complement the effects of a microdose.

A dose so low that its effects are barely noticeable during normal daily activities — the hallmark of a proper microdose.

The personally experienced changes in perception, mood, cognition, energy, or creativity a user notices during microdosing.

The minimum amount of a substance needed to produce barely noticeable effects, sitting just above placebo level.

The process of gradually adjusting a dose up or down to find the optimal amount for a specific individual.

A diminished response to a substance after repeated use, requiring higher doses to achieve the same effect.

The day immediately following an on-day, during which no dose is taken but residual "afterglow" effects may still be felt.

A sober, trusted person who remains present during a psychedelic experience to provide safety, reassurance, and practical support.

A class of organic compounds sharing a common chemical backbone. Many psychedelic substances are tryptamine derivatives that structurally resemble serotonin.

A preparation method that dissolves a known quantity of substance in a measured volume of liquid, allowing precise sub-milligram dosing.

The time required for a substance to be fully cleared from the body before starting a new treatment or protocol.