Attention is the scientific term primarily usedto describe all processes and mechanisms thatgovern the subjective constraints imposed by thehuman organism on the flow and interpretationof external and internal information, and on theorganization and selection of responses, in the serviceof goal-directed behavior. In some cases, attentioncan also be automatically captured bysudden changes in the situation, or by well-trainedstimulus–response tendencies
Attention / D., Gopher; Iani, Cristina. - STAMPA. - Vol. 1 (Academic Achievement- Environmental Psychology):(2003), pp. 220-226.