... emotional reactions to a drug. The abuse of methamphetamine has been associated with profound damage to these neurotransmitters, specifically the dopamine transport system (Brown et al., 2000; Nordahl et al., 2003; Salo et al., 2002; Volkow et al, 2001; & Zickler, 2002). The neurotoxic effects of methamphetamine abuse on the dopamine transport system are highly correlated with the acute and ... lack of motivation, in addition to experiencing extreme cravings for the drug. Methamphetamine works directly with the dopamine neurotransmitter system in the brain (Kalechstein et al., 2003; Norda...

• Word Count: 2798
• Approx Pages: 11
• Has Bibliography
• Grade Level: Undergraduate

... with "normal" people, those with schizophrenia have smaller brains and larger cerebral ventricles. The differences are small, but have been found in many studies (Brown et al 1986). Post-mortem studies (Woodruff et al 1997) have also revealed evidence of subtle disturbances in the structure and organisation of brain cells, particularly in the regions of the temporal and frontal lobes ... idea of abnormal brain development, there is evidence that people with schizophrenia show abnormalities in behaviour and social interaction many years before the onset of obvious symptoms. Jones et al (...

• Word Count: 1037
• Approx Pages: 4
• Grade Level: Undergraduate

... dopamine activity may not be applicable to all schizophrenics. For instance some studies have shown that amphetamines do not worsen the symptoms of all schizophrenics (Kornetsky, 1976). One study (Kammen et al, 1977) found that symptoms lessen after amphetamines have been administered. A correlation of the results of studies into amphetamines and schizophrenia, suggests that amphetamines worsen positive symptoms and lessen negative ... be caused by having a young schizophrenic in the family. A series of studies have found ! that the family can have an important affect on patients after th...

• Word Count: 3059
• Approx Pages: 12
• Has Bibliography
• Grade Level: Undergraduate

... dopamine activity may not be applicable to all schizophrenics. For instance some studies have shown that amphetamines do not worsen the symptoms of all schizophrenics (Kornetsky, 1976). One study (Kammen et al, 1977) found that symptoms lessen after amphetamines have been administered. A correlation of the results of studies into amphetamines and schizophrenia, suggests that amphetamines worsen positive symptoms and lessen negative ... could be caused by having a young schizophrenic in the family. A series of studies have found that the family can have an important affect on patients aft...

• Word Count: 3040
• Approx Pages: 12
• Grade Level: Undergraduate