digit arithmetic
1.One or more digits, produced in connection with an arithmetic operation on one digit place of two or more numerals in positional notation, that are forwarded to another digit place for processing there.
2.the NAI of benton visual retention, length discrimination and simple visual reaction time declined obviously when alcohol concentration exceeded 0.50mg/mL, the NAI of mental arithmetic and digit cancel declined obviously when alcohol concentration exceeded 0.80mg/mL.
3.Results It was showed that the neurobehavioral ability index(NAI) of mental arithmetic, benton visual retention, length discrimination and digit cancel declined during 0.5~ 2.5 hours after drinking, the NAI of simple visual reaction time declined during 0.5~5.5 hours after drinking.
