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Cannabis use disorder ( CUD ), also known as cannabis addiction or marijuana addiction, is a psychiatric disorder defined in the fifth revision of the Diagnostic and Statistical Manual of Mental Disorders ( DSM-5) and ICD-10 as the continued use of cannabis despite clinically significant impairment. [ 2][ 3]
Horizontal Gaze Nystagmus (HGN) testing is a common practice used by law enforcement in the United States in the identification of persons who are intoxicated or under the influence of a controlled substance. The key difference between recognizing PAN and horizontal gaze nystagmus is the position of the subject's head in relation to the body.
Nystagmus. Nystagmus is a condition of involuntary (or voluntary, in some cases) [1] eye movement. [2] People can be born with it but more commonly acquire it in infancy or later in life. In many cases it may result in reduced or limited vision. [3] In normal eyesight, while the head rotates about an axis, distant visual images are sustained by ...
Cannabis drug testing describes various drug test methodologies for the use of cannabis in medicine, sport, and law. Cannabis use is highly detectable and can be detected by urinalysis, hair analysis, as well as saliva tests for days or weeks. Unlike alcohol, for which impairment can be reasonably measured using a breathalyser (and confirmed ...
Field sobriety testing. Field sobriety tests ( FSTs ), also referred to as standardized field sobriety tests ( SFSTs ), are a battery of tests used by police officers to determine if a person suspected of impaired driving is intoxicated with alcohol or other drugs. FSTs (and SFSTs) are primarily used in the United States, to meet "probable ...
Nystagmus is tested for. One or two beats is a normal finding. The accommodation reflex is tested by moving the target towards the patient's nose. As the eyes converge, the pupils should constrict. The optokinetic nystagmus test is optional and involves asking the patient to look at a strip of vertical lines moving horizontally across visual ...
Substance intoxication is a transient condition of altered consciousness and behavior associated with recent use of a substance. [ 1] It is often maladaptive and impairing, but reversible. [ 2] If the symptoms are severe, the term "substance intoxication delirium " may be used. [ 3] Slang terms for the state include: getting high (generic), and ...
Of his studies on cannabis use, lead researcher and Harvard professor Harrison Pope said he found it is not dangerous over the long term, but there are short-term effects. From neuropsychological tests, Pope found that chronic cannabis users showed difficulty with verbal memory in particular for "at least a week or two" after they stopped smoking.