In relation to selective attention, alterations in the psychophysiological state of the driver (such as, for example, driving under the influence of alcohol or drugs):
They do not usually represent any risk to traffic safety, since attention is a mechanism that is not affected by this type of disturbance .
They can, for example, make you more easily distracted behind the wheel .
They only represent a problem in particularly unfavorable conditions, such as night driving or in fog .