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drink-driving

drink-driving n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...is 80mg/dl (.08g/dl), often rather misleadingly referred to as .08 per cent blood alcohol concentration. It equates to roughly four units of alcohol (half pints of beer, glasses of wine, or measures of spirits) taken by an average 150 lb (68 kg) person in quick succession, and this is also the figure recommended by the American College of Emergency Physicians ( ACEP ) as per se evidence of driving while impaired. In some countries, including several members of the European Union, the drink-drive limit is 50mg/dl, and in Sweden it is 20mg/dl. See also ...

probability learning

probability learning n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...on a randomized proportion of trials. In humans, this is usually achieved with variations of the light-guessing experiment first described by the US psychologist Lloyd G(irton) Humphreys ( 1913–2003 ) in the Journal of Experimental Psychology in 1939 . An observer tries to predict which of two light bulbs will light up on each trial, and the bulbs are lit up randomly, 80 per cent left and 20 per cent right, for example. People typically began by distributing their guesses roughly equally between the two options, then they increase the frequency of choosing...

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