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NHTSA reports that the following blood alcohol levels (BAC) in a driver will have the following predictable effects on his or her ability to drive safely: (1) A BAC of .02 will result in a "[d]ecline in visual functions (rapid tracking of a moving target), a decline in the ability to perform two tasks at the same time (divided attention)"; (2 ...
Stimulus onset asynchrony, the time that lapses between the presentations of the two stimuli, acts as the independent variable in this paradigm, and the reaction time to the second stimulus acts as the dependent variable. [1] Figure 1. Model of the central bottleneck accounting for the psychological refractory period.
Influenced by this research, the DSM-III (1980) allowed for the first time a diagnosis of an ADD subtype that presented without hyperactivity. Researchers exploring this subtype created rating scales for children which included questions regarding symptoms such as short attention span, distractibility, drowsiness, and passivity. [66]
Because children spend so much more time under the supervision and direct guidance of their parents, they are far less likely to have unsupervised time with peers, which is when most adolescent ...
Alcohol (also known as ethanol) has a number of effects on health. Short-term effects of alcohol consumption include intoxication and dehydration. Long-term effects of alcohol include changes in the metabolism of the liver and brain, with increased risk of several types of cancer and alcohol use disorder. [1]
Alcohol tolerance is increased by regular drinking. [1] This reduced sensitivity to the physical effects of alcohol consumption requires that higher quantities of alcohol be consumed in order to achieve the same effects as before tolerance was established. Alcohol tolerance may lead to (or be a sign of) alcohol dependence. [1]
Disulfiram-alcohol reaction (DAR) is the effect of the interaction in the human body of alcohol drunk with disulfiram or some types of mushrooms. [ 1 ] [ 2 ] The DAR is key to disulfiram therapy that is widely used for alcohol-aversive treatment and management of other addictions (e.g. cocaine [ 3 ] [ 4 ] use).
In the Western world about 15% of people have problems with alcoholism at some point in time. [3] Alcohol depresses the central nervous system, slowing cerebral messaging and altering the way signals are sent and received. Progressively larger amounts of alcohol are needed to achieve the same physical and emotional results.