Alcohol disrupts functioning of the cerebellum which controls movement and balance.
One of the most well-known signs of acute alcohol consumption is a stumbling stride. The stance imbalance and eye-hand incoordination standard tests are frequently used by highway patrol officers to assess the motor incoordination component of intoxication.
The obvious signs of gait and coordination impairment detected by these easy tests often disappear as the subject sobers up. However, a careful evaluation of alcoholics reveals minor, persistent balance issues that may increase their susceptibility to accidents like falling.
Alcohol-induced pathological abnormalities in the cerebellum, one of the key areas of the brain involved in postural regulation and motor coordination, may contribute to these deficits.
The cerebellum may be essential for the development of motor skills and the mental processes that control movement in addition to controlling movement.
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