Moderate intoxication from cocaine, methamphetamine, or other stimulants is associated with euphoria, and a sense of internal well-being, and perceived increased powers of thought, strength, and accomplishment.

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This unit covers chapters 12 and 14. Addictive Disorders tend to be comorbid with personality disorders. This is not to say that other disorders are not also comorbid. A personality disorder can be described as a disorder of lesser symptoms and is diagnosed on AXIS II. Historically, Borderline PD was a catchbin for personality disorder NOS. It has become more popular within the AXIS I of Addictive Disorders not to be confused with substance related mood disorder.
This is an example of the findings on Cocaine induced psychosis:
Fifty-three percent (29/55) of those interviewed reported experiencing transient cocaine-induced psychosis. There was no significant difference in lifetime amount of cocaine use or amount of cocaine use in the month before admission between those who experienced psychosis and those who did not. The psychosis-positive group used significantly more cocaine in the year prior to admission (p less than or equal to .02) and had a longer duration of use (p less than or equal to .01). Males were significantly (p less than or equal to .05) more likely than females to develop psychosis. Ninety percent (26/29) developed paranoid delusions directly related to drug use. Ninety-six percent (28/29) of the subjects experienced hallucinations: 83% (24/29), auditory hallucinations; 38% (11/29), visual hallucinations; and 21% (6/29), tactile hallucinations. Twenty-seven percent (15/55) of subjects developed transient behavioral stereotypies.
An example of the findings on marijuana use psychosis:
Twenty male subjects were recruited and phenomenology was evaluated on the BPRS. Items with highest frequencies were unusual thought content (100%), excitement (75%), grandiosity (75%), hallucinatory behavior (70%) and uncooperativeness (65%). The least common symptoms were anxiety (5%), guilt feeling (5%), depressive mood (10%), motor retardation (10%) and blunted affect (30%). Nine subjects (45%) presented with cognitive dysfunction. Affective psychosis was the predominant diagnosis. At the end of 1 week of abstinence from cannabis, there was a significant decrease in scores. Significant improvement was observed in cognitive dysfunction, conceptual disorganization, grandiosity, tension, hostility, hallucinatory behavior and excitement.
An example of the effects of Alcohol Addiction:
In most people, moderate to heavy consumption is associated with euphoria, mood lability, decreased impulse control, and increased social confidence (i.e., getting high). Such symptoms might even appear hypomanic. However these often are followed with next-day mild fatigue, nausea, and dysphoria (i.e., a hangover). In a person who has many life stresses, losses, and struggles, which is often the case as addiction to alcohol proceeds, the mood lability and lowered impulse control can lead to increased rates of violence toward others and self. Prolonged drinking increases the incidence of dysphoria, anxiety, and such violence potential. Symptoms of alcohol withdrawal include agitation, anxiety, tremor, malaise, hyperreflexia (exaggeration of reflexes), mild tachycardia (rapid heart beat), increasing blood pressure, sweating, insomnia, nausea or vomiting, and perceptual distortions.
Following acute withdrawal (a few days), some people will experience continued mood instability, fatigue, insomnia, reduced sexual interest, and hostility for weeks, so called protracted withdrawal. Differentiating protracted withdrawal from a major depression or anxiety disorder is often difficult. More severe withdrawal is characterized by severe instability in vital signs, agitation, hallucinations, delusions, and often seizures. The best predictor of whether this type of withdrawal may happen again is if it happened before. Alcohol-induced deliriums after high-dose drinking are characterized by fluctuating mental status, confusion, and disorientation and are reversible once both alcohol and its withdrawal symptoms are gone, while by definition, alcohol dementias are associated with brain damage and are not entirely reversible even with sobriety.

When consumed in large quantities, caffeine can cause mild to moderate anxiety, though the amount of caffeine that leads to anxiety varies. Caffeine is also associated with an increase in the number of panic attacks in individuals who are predisposed to them.
Cocaine and Amphetamines

Mild to moderate intoxication from cocaine, methamphetamine, or other stimulants is associated with euphoria, and a sense of internal well-being, and perceived increased powers of thought, strength, and accomplishment. In fact, low to moderate doses of amphetamines may actually increase certain test-taking skills temporarily in those with attention deficit disorders (see this in appendix D) and even in people who do not have attention deficit disorders. However, as more substance is used and intoxication increases, attention, ability to concentrate, and function decrease.
With street cocaine and methamphetamines, dosing is almost always beyond the functional window. As dosage increases, the chances of impulsive dangerous behaviors, which may involve violence, promiscuous sexual activity, and others, also increases. Many who become chronic heavy users go on to experience temporary paranoid delusional states. As mentioned above, with methamphetamines, these psychotic states may last for weeks, months, and even years. Unlike schizophrenic psychotic states, the client experiencing a paranoid state induced by cocaine more likely has intact abstract reasoning and linear thinking and the delusions are more likely paranoid and less bizarre (Mendoza and Miller 1992). After intoxication comes a crash in which the person is desperately fatigued, depressed, and often craves more stimulant to relieve these withdrawal symptoms. This dynamic is why it is thought that people who abuse stimulants often go on week- or month-long binges and have a hard time stopping. At some point the ability of stimulants to push the person back into a high is lost (probably through washing out of neurotransmitters), and then a serious crash ensues.
Even with several weeks of abstinence, many people who are addicted to stimulants report a dysphoric state that is marked by anhedonia (absence of pleasure) and/or anxiety, but which may not meet the symptom severity criteria to qualify as DSM-IV Major Depression (Rounsaville et al. 1991). These anhedonic states can persist for weeks. As mentioned above, heavy, long-term amphetamine use appears to cause long-term changes in the functional structure of the brain, and this is accompanied by long-term problems with concentration, memory, and, at times, psychotic symptoms. Month-long methamphetamine binges followed by week- or month-long alcohol binges, a not uncommon pattern, might appear to be bipolar disorder if the drug use is not discovered. For more information, see the National Institute on Drug Abuse Web site (

Hallucinogens produce visual distortions and frank hallucinations. Some people who use hallucinogens experience a marked distortion of their sense of time and feelings of depersonalization. Hallucinogens may also be associated with drug-induced panic, paranoia, and even delusional states in addition to the hallucinations. Hallucinogen hallucinations usually are more visual (e.g., enhanced colors and shapes) as compared to schizophrenic-type hallucinations, which tend to be more auditory (e.g., voices). The existence of a marijuana-induced psychotic state has been debated (Gruber and Pope 1994), although a review of the research suggests that there is no such entity. A few people who use hallucinogens experience chronic reactions, involving prolonged psychotic reactions, depression, exacerbations of preexisting mental disorders, and flashbacks. The latter are symptoms that occur after one or more psychedelic trips and consist of flashes of light and after-image prolongation in the periphery. The DSM-IV defines flashbacks as a

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