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Alcohol myopia
Alcohol myopia is a cognitive-physiological theory on alcohol abuse in which many of alcohol's social and stress-reducing effects, which may underlie its addictive capacity, are explained as a consequence of alcohol's narrowing of perceptual and cognitive functioning. The alcohol myopia model〔Steele & Josephs, ("Alcohol Myopia It's Prized and Dangerous Effects" ),''American Psychologist'',1990〕 posits that rather than disinhibit, alcohol produces a myopia effect that causes users to pay more attention to salient environmental cues and less attention to less salient cues. Therefore, alcohol's myopic effects cause intoxicated people to respond almost exclusively to their immediate environment. This "nearsightedness" limits their ability to consider future consequences of their actions as well as regulate their reactive impulses.
Alcohol's ability to alter behavior and decision-making stems from its impact on synaptic transmission at GABA receptors.〔 Alcohol's effects on the synaptic level dampen the brain's processing ability and limit attentional capacity.〔Giancola, Duke & Ritz, ("Alcohol, violence, and the alcohol myopia model; Preliminary findings and implications for prevention" ) ''Elsevier'',2011〕
Overall, the alcohol myopia theory proposes that intoxicated individuals will act rashly and will choose overly simple solutions to complex problems.
==Three classes of myopia==
Alcohol's myopic effects on the drinker's cognitive processes can be characterized into three classes: self-inflation, relief, and excess.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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