1. biopsychology; a field of study examining the relationship between brain and mind, studying the effect of biological influences on psychological functioning or mental processes.
Beer (Alcohol content: 4%-6% ABV generally) and Wine (Alcohol content: 9%-16% ABV) are alcoholic beverages produced by fermentation. Beer is generally composed of malted barley and/or wheat and wine is made using fermented grapes. The above two have low alcohol content.
It may be just a cultural thing, as you alluded to. But there are more differences between malt liquor and most other kinds of beer than just the alcohol content, and even that varies between malt liquors. First, for comparison, your average American beer has between 3.6 - 3.8 percent alcohol by weight.