Reaction time cannabis

When long-term chronic cannabis users (i.e., daily use for 15-24 years) were compared to shortterm users and nonusers, they were found to have elevated absolute power of theta activity over bilateral frontal-central cortex, as well as significantly increased interhemispheric coherence of theta activity across central and posterior regions (Struve et al. 1998). Concurrent reaction time studies also showed slowed cognitive processing in that group. Other work by this group has shown that in... 

A study of experienced cannabis smokers tested them on cognitive measures using two doses (1.75% or 3.55%) and placebo (Wilson et al. 1994). The functions most sensitive to the effects of THC were mental processing speed (digit-symbol substitution) and reaction time. When compared with cannabis nonusers, chronic users of cannabis—with a mean duration of use of 6.76 years and an average daily intake of 150 mg of THC—were found to have slower reactions on perceptuo-motor tasks, but no differences on intelligence or memory tests (Varma et al. 1988). 

Cannabis (eg, marijuana, hashish) Impaired motor coordination, anxiety, slowed reaction time, impaired judgment, conjunctival injection, dry mouth, increased appetite( JWluCin Kwa None Inhibitory G protein, GABA, increased serotonin Abstinence and support Respiratory effects, amotivational syndrome, increased inddence of mental illness... 

Psychomotor performance refers to motor (movement) skills, eye-hand coordination, and speed of response to visual or auditory stimuH (often referred to as reaction time). Acute cannabis administration typically impairs psychomotor performance, with higher doses producing greater impairment (for reviews, see refs. 26-28). Numerous standardized tests measure various aspects of psychomotor performance (see Note 10). Impaired performance is observed within 30-45 min after smoking cannabis and persists for several hours. Some studies have documented performance decrements 12-24 h after smoking cannabis (29). 

Acute psychomotor effects of cannabis administration include decreased postural balance (48,49), increased body sway (due to impaired equilibrium) (50), and increased tremor. Effects on simple and complex reaction time tasks are mixed, with some studies reporting impaired performance (51,52) and others showing no effect (50,53). Acute cannabis administration can also impair performance on the digit symbol substitution test (DSST) (9,13,49),... 

Cannabis is often detected in the blood of drivers and is considered the major cause of road crashes after alcohol. It is often implicated in forensic cases and workplace accidents. A -tetrahydrocannabinol (THC) is the major psychoactive constituent of Cannabis sativa, whose main metabolites formed in blood are 1 l-nor-9-carboxy-A -tetrahydrocannabinol (THC-COOH) and ll-hydroxy-A -tetrahydrocannabinol (THC-OH). Marijuana (also ganja, grass, herb, Mary Jane, pot, green, trees, smoke, sinsemilla, and weed) and hashish (or boom, gangster, hash, hemp) are made up of dried parts of the Cannabis sativa hemp plant they give euphoria and relaxation but also slowed reaction times, impaired coordination, anxiety, panic attack, and psychosis and cause respiratory infections, mental health decline, and addiction. 

Cannabis (weed, skunk, hash, ganja) Relaxation, sedation Euphoria, giving Anxiety, paranoia Perceptual/time distortion Nausea/vomiting Hunger ( the munchies ) Dry mouth, bloodshot eyes i Attention, short-term memory i Reactions, coordination i BP T HR Irritability, anxiety Resdessness Insomnia/vivid dreams (can last three weeks) Shaky, sweaty cold chills 1 Appetite Stomach pains Can tri er psychosis. Usually smoked, sometimes eaten/drunk. Skunk is a particularly potent form... 

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