An autonomous entity is the experience of perceived contact with beings that appear to be sentient in their behaviour. They are most commonly induced under the influence of heavy dosages of hallucinogenic compounds.

Double vision is the experience of seeing duplicated vision, similar to when one crosses their eyes. This effect is most commonly induced under the influence of moderate dosages of depressant and dissociative compounds, such as alcohol, quetiapine, ketamine, and DXM.

Drifting is the experience of the texture, shape, and general structure of objects and scenery appearing progressively warped, melted, and morphed across themselves. It is most commonly induced under the influence of moderate dosages of psychedelic compounds, such as LSD, psilocybin, and mescaline.

Environmental cubism is a visual segmentation of the external environment into squares and cubes of varying amounts and sizes. It is most commonly induced under the influence of heavy dosages of dissociative compounds, such as ketamine, PCP, and DXM.

Frame rate suppression is the perceived reduction in speed at which visual information is processed. It is most commonly induced under the influence of moderate dosages of dissociative compounds, such as ketamine, MXE, PCP, and DXM.

Geometry is the experience of a person's field of vision becoming partially or completely encompassed by fast-moving, colourful, and extremely complex geometric patterns, form constants, shapes, fractals, and colours.

An internal hallucination is the perception of a visual hallucination that exclusively occurs within an imagined environment that can typically only be viewed with closed eyes, similar to those found within dreams. They are most commonly induced under the influence of heavy dosages of hallucinogenic compounds, such as psychedelics, dissociatives, and deliriants.

A perspective hallucination is an alteration of the perspective through which a given internal or external hallucination is seen through. They are most commonly induced under the influence of heavy dosages of hallucinogenic compounds, such as psychedelics, dissociatives, and deliriants.

Scenery slicing is the experience of a person's visual field appearing to split into separate, cleanly cut sections. These individual slices then proceed to drift slowly away from their original position before disappearing and resetting to normal. It is most commonly induced under the influence of moderate dosages of dissociative compounds, such as ketamine, PCP, and DXM.

Settings, sceneries, and landscapes are the perceived environments in which the plot of an internal or external hallucination occurs. This effect is capable of manifesting in a seemingly infinite variety of potential places and settings. They are most commonly induced under the influence of heavy dosages of hallucinogenic compounds, such as psychedelics, dissociatives, and deliriants.

Acuity suppression is the degradation of the sharpness and clarity of one's vision, resulting in vision becoming partially to completely blurred and indistinct. This effect is most commonly induced under the influence of moderate dosages of depressant and dissociative compounds, such as alcohol, quetiapine, ketamine, and DXM.

Visual agnosia is a partial to complete inability to mentally process visual information, regardless of its clarity. It is most commonly induced under the influence of heavy dosages of dissociative or antipsychotic compounds, such as ketamine, quetiapine, PCP, and DXM.

Visual disconnection is the experience of becoming distanced and/or detached from one's sense of vision. It is a near-universal effect under the influence of moderate dosages of dissociative compounds, such as ketamine, PCP, and DXM.

Appetite suppression can be described as the experience of a distinct decrease in a person's sense of hunger and appetite in a manner which can result in both a lesser desire to eat food and a decreased enjoyment of its taste. It is most commonly induced under the influence of moderate dosages of stimulant compounds, such as amphetamine, methylphenidate, nicotine, MDMA, and cocaine.

Changes in felt gravity can be described as feeling that the pull of gravity has shifted in its direction. For example, during this state one may feel as if they are floating forwards, backwards, upwards, downwards, or in an unspecifiable direction.

Cough suppression can be described as a decreased desire and need to cough. It is most commonly induced under the influence of moderate dosages of antitussive compounds such as, codeine, pholcodine, dextromethorphan, noscapine, and butamirate.

Decreased libido can be described as a distinct decrease in feelings of sexual desire, the anticipation of sexual activity, and the likelihood that a person will view the context of a given situation as sexual in nature. It is most commonly induced under the influence of moderate dosages of a wide variety of compounds, such as, opioids, antipsychotics and SSRI's, and dissociatives.

Gait alteration is a change in the manner that a person walks and generally moves about throughout their environment. It is most commonly induced under the influence of moderate dosages of dissociatives such as ketamine, and especially DXM.

Increased heart rate or tachycardia is described as a heart rate that is faster than the normal heart rate at rest. It is most commonly induced under the influence of heavy dosages of stimulating compounds, such as traditional stimulants, certain psychedelics, and certain dissociatives.

Motor control loss can be described as feeling as if there has been a distinct decrease in a person's ability to control their physical body with precision, balance, coordination, and dexterity. Motor control loss is often accompanied by other coinciding effects such as sedation and disinhibition. It is most commonly induced under the influence of moderate dosages of GABAergic depressant compounds, such as, alcohol, benzodiazepines, GHB, and phenibut.

Nausea can be described as a sensation of unease and discomfort in the upper stomach combined with an involuntary urge to vomit. It is most commonly induced under the influence of heavy dosages of a wide variety of compounds, such as psychedelics, opioids, GABAergics, deliriants, dissociatives, and stimulants.

Orgasm suppression (formally known as anorgasmia) can be described as a difficulty or complete inability to achieve orgasm despite adequate sexual stimulation. This effect commonly occurs on opioids and dissociatives which have been reported to decrease one's ability to feel sexual pleasure, which may be attributed to their tactile suppressing effects or through some other biological mechanism. It is also a well-known side effect of selective serotonin reuptake inhibitors (SSRIs).

Pain relief can be described as an effect which suppresses negative sensations such as aches and pains. It is most commonly induced under the influence of moderate dosages of a very wide variety of compounds, such as opioids, GABAergics, GABApentinoids, cannabinoids, dissociatives, muscle relaxants, and NSAID's.

Perception of bodily lightness can be described as feeling as if one's body has significantly decreased in its weight. This can result in feelings of increased energy and a general sense of bounciness due to the body seeming weightless and therefore effortless to move. It is most commonly induced under the influence of moderate dosages of dissociative compounds, such as ketamine, PCP, and DXM.

Physical autonomy can be described as the experience of a person's own body performing simple or complex actions entirely of its own accord. It is most commonly induced under the influence of heavy dosages of dissociative compounds, such as ketamine, PCP, and DXM.

Physical disconnection is the experience of feeling distant and detached from one's sense of touch and their feelings of ownership and control over their own physical body. This effect is most commonly induced under the influence of moderate dosages of depressant and dissociative compounds, such as, ketamine, PCP, and DXM.

Spatial disorientation is the failure to perceive or perceiving incorrectly the position, motion, or altitude of oneself within the fixed coordinate system provided by the surface of the Earth and the gravitational vertical. It is most commonly induced under the influence of moderate dosages of dissociative compounds, such as diphenidine, ketamine, and DXM.

Stimulation can be described as an increase in a person's physical energy levels. It is most commonly induced under the influence of stimulant compounds, such as amphetamine, MDMA, and cocaine.

Scenarios and plots are the situations, stories, and events that occur within both external and internal hallucinations. They are most commonly induced under the influence of heavy dosages of hallucinogenic compounds, such as psychedelics, dissociatives, and deliriants.

An auditory distortion is the experience of perceived alterations in how audible noises present and structure themselves. They are most commonly induced under the influence of hallucinogenic compounds.

An auditory enhancement is the experience of an increase or improvement of the acuteness and clarity of sound. They are most commonly induced under the influence of moderate dosages of psychedelic compounds, such as LSD, psilocybin, and mescaline.

An auditory hallucination is the experience of hearing spontaneous and imaginary noises. They are most commonly induced under the influence of moderate dosages of hallucinogenic compounds, such as psychedelics, deliriants, and dissociatives.

Auditory suppression is the experience of sound becoming perceived as more distant, quiet, and muffled than they actually are. It is most commonly induced under the influence of moderate dosages of dissociative compounds, such as ketamine, PCP, and DXM.

Spontaneous tactile sensations are the experience of sensations across the body occurring without any obvious or immediate physical trigger. This results in feelings of seemingly random yet distinct tingling sensations that occur across the skin and within the body. Depending on the psychoactive substance consumed, these vary greatly in their styles of sensation.

Tactile suppression is a decrease in one's ability to feel their sense of touch, which may result in a general numbness across the body. It is most commonly induced under the influence of moderate dosages of dissociative compounds, such as ketamine, PCP, and DXM.

Amnesia is a global impairment in the ability to acquire new memories regardless of sensory modality, and a loss of some memories, especially recent ones, from the period before amnesia began. It is most commonly induced under the influence of heavy dosages of GABAergic depressants, such as alcohol, benzodiazepines, GHB, and zolpidem.

Analysis suppression is a distinct decrease in a person's overall ability to process information and logically or creatively analyze concepts, ideas, and scenarios. It is most commonly induced under the influence of heavy dosages of antipsychotic compounds, and is associated with long term use of such drugs like quetiapine, haloperidol, and risperidone.

Anxiety suppression (also known as anxiolysis or minimal sedation) is medically recognized as a partial to complete suppression of a person’s ability to feel anxiety, general unease, and negative feelings of both psychological and physiological tension. It is most commonly induced under the influence of moderate dosages of anxiolytic compounds which primarily include GABAergic depressants, such as benzodiazepines, alcohol, GHB, and gabapentinoids.

Cognitive disconnection is the experience of feeling distant and detached from one's sense of identity, thought stream, and general cognitive processes. It is a near-universal effect under the influence of moderate dosages of dissociative compounds, such as ketamine, PCP, and DXM.

Cognitive euphoria (semantically the opposite of cognitive dysphoria) is medically recognized as a cognitive and emotional state in which a person experiences intense feelings of well-being, elation, happiness, excitement, and joy. It is most commonly induced under the influence of moderate dosages of opioids, entactogens, stimulants, and GABAergic depressants. However, it can also occur to a lesser extent under the influence of hallucinogenic compounds such as psychedelics, dissociatives, and cannabinoids.

Compulsive redosing is the experience of a powerful and difficult to resist urge to continuously redose a psychoactive substance in an effort to increase or maintain the subjective effects which it induces. It is most commonly induced under the influence of moderate dosages of a wide variety of compounds, such as opioids, stimulants, GABAergics, and entactogens.

Conceptual thinking is an alteration to the nature and content of one's internal thought stream. This alteration predisposes a user to think thoughts that are no longer primarily comprised of words and linear sentence structures. Instead, thoughts become equally comprised of what is perceived to be extremely detailed renditions of the innately understandable and internally stored concepts that words exist to label. It is most commonly induced under the influence of moderate dosages of hallucinogenic compounds, such as psychedelics and dissociatives.

Creativity enhancement is a perceived increase in one's capability to imagine new ideas, create art, or think about existing concepts in a novel manner. It is most commonly induced under the influence of moderate dosages of psychedelic compounds, such as LSD, psilocybin, and mescaline.

Déjà Vu or Deja Vu can be described as the sudden sensation that a current event or situation has already been experienced at some point in the past when, in actuality, it hasn't. It is most commonly induced under the influence of moderate dosages of hallucinogenic compounds, such as psychedelics, dissociatives, and cannabinoids.

Depersonalization is medically recognized as the experience of feeling detached from one's mental processes, body, or actions as if they are an outside observer. It is most commonly induced under the influence of moderate dosages of dissociative compounds, such as ketamine, PCP, and DXM.

Derealization or derealisation (sometimes abbreviated as DR) is the experience of feeling detached from, and as if one is an outside observer of, one's surroundings (e.g., individuals or objects are experienced as unreal, dreamlike, foggy, lifeless, or visually distorted). It is most commonly induced under the influence of moderate dosages of dissociative compounds, such as ketamine, PCP, and DXM.

Disinhibition is medically recognized as an orientation towards immediate gratification, leading to impulsive behavior driven by current thoughts, feelings, and external stimuli, without regard for past learning or consideration of future consequences. It is most commonly induced under the influence of moderate dosages of GABAergic depressants, such as alcohol, benzodiazepines, phenibut, and GHB.

Dream potentiation is an effect that increases the subjective intensity, vividness, and frequency of sleeping dream states. It is most commonly induced under the influence of moderate dosages of oneirogenic compounds, a class of hallucinogen that is used to specifically potentiate dreams when taken before sleep.

Ego inflation is an effect that magnifies and enhances one's own ego and self-regard, resulting in the person feeling an increased sense of confidence, superiority, and general arrogance. It is most commonly induced under the influence of moderate dosages of stimulant compounds, particularly dopaminergic stimulants, such as methamphetamine and cocaine.

Ego replacement can be described as the sudden perception that one's sense of self and personality has been replaced with that of another person's, a fictional character's, an animal's, or an inanimate object's perspective. It is most commonly induced under the influence of moderate dosages of heavy dosages of hallucinogenic compounds, such as psychedelics, dissociatives, and deliriants.

Existential self-realization can be described as a sudden realization, revelation, or reaffirmation of a person's existence within this universe. Existential self-realization is most commonly induced under the influence of moderate dosages of psychedelic and dissociative compounds such as ketamine, LSD, 4-AcO-DMT, and DCK.

Increased music appreciation is a general sense of an increased enjoyment of music. It is most commonly induced under the influence of moderate dosages of hallucinogenic compounds, such as psychedelics, dissociatives, and cannabinoids

Introspection can be described as the experience of a state of mind in which a person feels as if they are being encouraged or forced to reflect upon and examine aspects of their life, thoughts, and feelings. It is most commonly induced under the influence of moderate dosages of hallucinogenic compounds, such as psychedelics and dissociatives.

Memory suppression is an inhibition of a person's ability to maintain a functional short and long-term memory. It is most commonly induced under the influence of moderate dosages of hallucinogenic compounds, such as psychedelics, dissociatives, and deliriants.

Motivation enhancement is an increased desire to perform tasks and accomplish goals in a productive manner. It is most commonly induced under the influence of moderate dosages of stimulant and nootropic compounds, such as amphetamine, methylphenidate, nicotine, and modafinil.

Novelty enhancement is a feeling of increased fascination, awe, and appreciation attributed to specific parts or the entirety of one's external environment. It is most commonly induced under the influence of moderate dosages of psychedelic compounds, such as LSD, psilocybin, and mescaline.

Personal meaning enhancement (also known as aberrant salience) is the experience of a considerably increased sense of personal significance becoming attributed to innocuous situations, and coincidences. It is most commonly induced under the influence of moderate dosages of hallucinogenic compounds, such as psychedelics, dissociatives, cannabinoids, and deliriants.

Thought acceleration (also known as racing thoughts) is the experience of thought processes being sped up significantly in comparison to that of everyday sobriety. It is most commonly induced under the influence of moderate dosages of stimulant and nootropic compounds, such as amphetamine, methylphenidate, modafinil, and MDMA.

Thought deceleration is the process of thought being slowed down significantly in comparison to that of normal sobriety. It is most commonly induced under the influence of heavy dosages of depressant compounds, such as GABAergics, antipsychotics, and opioids.

Time distortion is an effect that makes the passage of time feel wildly altered and difficult to keep track of. is most commonly induced under the influence of strong dosages of hallucinogenic compounds, such as psychedelics, dissociatives, and cannabinoids.