Hallucinogens :: essays research papers fc

Hallucinogens or psychedelics are mind-altering drugs, which affect the mind’s perceptions, causing bizarre, unpredictable behavior, and severe, sensory disturbances that may place users at risk of serious injuries or death. Hallucinogens powerfully affect the brain, distorting the way our five senses work and changes our impressions of time and space. People who use these drugs a lot may have a hard time concentrating, communicating, or telling the difference between reality and illusion. Hallucinogens cause people to experience - you guessed it - hallucinations, imagined experiences that seem real. The word "hallucinate" comes from Latin words meaning, "to wander in the mind." Your brain controls all of your perceptions; the way you see, hear, smell, taste, and feel. Chemical messengers transmit information from nerve cell to nerve cell in the body and the brain. Your nerve cells are called neurons, and their chemical messengers are called neurotransmitters. Chemicals like hallucinogens can disrupt this communication system, and the results are changes in the way you sense the world around you. There's still a lot that scientists don't know about the effects of Hallucinogens on the brain though. Some hallucinogens occur naturally in trees, vines, seeds, fungi and leaves. Others are made in laboratories by mixing different chemical substances. LSD or acid is one of the most common, well-known hallucinogens. Psilocin or Psilocybin mushrooms, Mescaline or Peyote, MDMA, Bufotenine, Morning Glory seeds, Jimson weed, PCP and DMT are less common psychedelics with effects similar to LSD. PCP and Ketamine are drugs with hallucinogenic properties. Some drugs, such as cannabis, can cause hallucinogen-like effects when used in high doses or in certain ways. Using hallucinogens is often called tripping. In its pure form LSD is a white, odorless powder. This pure form is very strong, so LSD is usually mixed with other things to make the dose large enough to take. LSD comes in the form as liquids, tablets, capsules or squares of gelatin or blotting paper. LSD use can have many effects. These may include sleeplessness, trembling, and raised heart rate, and blood pressure. LSD users may feel several emotions at once (including extreme terror), and their senses may seem to get crossed, giving the feeling of hearing colors and seeing sounds. Even a tiny speck of LSD can trigger these effects. Many LSD users have flashbacks; sudden repetitions of their LSD experiences, days or months after they stop using the drug.