Canyoubelieveyoureyes？Arecentexperimentsuggeststhattheanswertothatquestionmaydependonyourage．
MartinDoherty，apsychologistattheUniversityofStiflinginScotland，ledtheteamofscientists．Inthisexperiment，Dohertyandhisteamtestedtheperception（观察力）ofsomepeople，usingpicturesofsomeorangecircles．Theresearchersshowedthesamepicturestotwogroupsofpeople．Thefirstgroupincluded151childrenaged4to10，andthesecondgroupincluded24adultsaged18to25．
Thefirstgroupofpicturesshowedtwocirclesaloneonawhitebackground．Oneofthecircleswaslargerthantheother，andthesepeoplewereaskedtoidentifythelargerone．Four-year-oldsidentifiedthecorrectcircle79percentofthetime．Adultsidentifiedthecorrectcircle95percentofthetime．
Next，bothgroupswereshownapicturewheretheorangecircles，againofdifferentsizes，weresurroundedbygraycircles．Here'swherethetrickliesin．Insomeofthepictures，thesmallerorangecirclewassurroundedbyevensmallergraycircles--makingtheorangecircleappearlargerthantheotherorangecircle，whichwasthereallargerone．Andthelargerorangecirclewassurroundedbyevenbiggergraycircles--soitappearedtobesmallerthantherealsmallerorangecircle．
Whenyoungchildrenaged4to6lookedatthesetrickypictures，theyweren'tfooled-theywerestillabletofindthebiggercirclewithroughlythesameaccuracyasbefore．Olderchildrenandadults，ontheotherhand，didnotdoaswell．Olderchildrenoftenidentifiedthesmallercircleasthelargerone，andadultsgotitwrongmostofthetime．
Aschildrengetolder，Dohertysaid，theirbrainsmaydeveloptheabilitytoidentifyvisualcontext（背景）．Inotherwords，theywillbegintoprocessthewholepictureatonce：thetrickygraycircles，aswellastheorangecircleinthemiddle．Asaresult，they'remorelikelytofallforthiskindofvisualtrick．
71．Dohertyandhisteamofscientistsdidanexperimenttoevaluate．___
A．children'sandadults'brains
B．children'sandadults'eye-sight
C．theinfluenceofpeople'sage
D．people'sabilitytoseeaccurately
72．Whenaskedtofindthelargercircle，．___
A．adultsgotitright