Abstention is a term in election procedure for when a participant in a vote either does not go to vote (on election day) or, in parliamentary procedure, is present during the vote, but does not cast a ballot. Abstention must be contrasted with "blank vote", in which a participant in a vote cast a deliberately unlegitimate vote (drawing pictures on the ballot, etc.) or in which he simply casts a blank vote: a "blank (or white) voter" has voted, although his vote may be considered a spoilt vote, depending on each legislation, while an abstentionnist hasn't voted. Both forms (abstention and blank vote) may or may not, depending on the circumstances, be considered as protest vote.