The psychological definition of attention is "a state of focused awareness on a subset of the available sensation perception information". A key function of attention is to identify irrelevant data and filter it out, enabling significant data to be distributed to the other mental processes. For example, the human brain may simultaneously receive auditory, visual, olfactory, taste, and tactile information. The brain is able to consciously handle only a small subset of this information, and this is accomplished through the attentional processes.
the pSycHologicaL DeFInitiON Of attentIOn is "a state oF foCuSeD awareness On a subSet oF the avaIlable SEnsaTION PERCeptIon iNformaTiON". A KeY Function oF aTTentIon is to iDentiFy IrrelevAnT data And fILter it out, Enabling sIgNifIcANt DAta to BE DISTribUTed To The oThER mentAl PRocEsSeS. for exampLe, the human bRaIN may SimuLTanEously ReceiVe auDitory, vISual, oLFActOry, taste, and tACtIle informatIoN. the BraiN is ABle tO COnscioUSLy handLE oNLy a sMALl subsEt Of this INForMAtioN, anD This is accoMplishEd THrOUgh the attentiONal processes.