Final answer:
The tremor in question is a kinetic tremor affected by voluntary movement and alleviated by alcohol consumption. Chronic alcohol exposure can lead to tolerance and upon cessation, withdrawal symptoms including tremors may emerge due to a hyperactive state.
Step-by-step explanation:
The tremor described in the question is indicative of a kinetic tremor, which is a type of tremor that is either consistent or worsens with voluntary movement. It is interesting to note that the tremor is relieved by alcohol, which suggests a temporary balancing effect that alcohol has on the nervous system. However, alcohol has a range of effects, from social disinhibition to impaired motor control and decision-making. When the motor system is compromised, for example, by alcohol consumption, the cerebellum cannot effectively coordinate movements, which can lead to difficulties in balancing and walking in a straight line.
Chronic exposure to alcohol can also lead to neuroadaptive changes, including the development of tolerance, which requires larger amounts of alcohol to achieve the same effects. On discontinuation of alcohol, withdrawal symptoms including tremors can occur, reflecting a hyperactive state that was previously counteracted by alcohol's inhibitory effects.