If a metal wire has its length doubled and its diameter tripled, by what factor does its Young’s modulus change?
Lecture4:Attention(Hillary) Monday,January30,2017 2:27PM Attention:theactorstateofapplyingthemindtosomething • Payattentioninclass ----vigilance/sustainedattention :focusingononetaskfor aspecificamountoftimewithoutbeingdistracted. WilliamJames--- • Createddefinitionofattention. • Saidthereisseveralsimultaneouslypossibleobjects • Implieswithdrawalfromsomethingsinordertodealeffectivelywithother things • Enhancesprocessingofrelevantinputs Whydoweneedselection • Infiniteamountofinformationintheworldthatgetsprocessedbyperception. Selectiveattention • Beachtirelogdog.Thesewerewordsthatwereonthebottomofthescreen. Thewordsonthetopwereignoredbecausewewerepayingattentiontothe wordsonthebottom Earlyselectionmodel • Brodman'stheory • Akafiltertheory • Yougetinputsintheworldandtheinfogetsdetected.Attentionfiltersout unattendedinformation.Onlyinformationthatpassesthroughthefilterreceive furtheranalysis. Lateselectiontheory • Imput--->detection --->recognitio--->filter • Filteringoccurredafterallstimulusinputwasanalyzedtothepointof recognition. • Onlyrelevantinformationwasnoticedandremembered. Thelocationofthefilteriswhatdifferentiatesthesetwomodels. DichoticListeningTask recognition. • Onlyrelevantinformationwasnoticedandremembered. Thelocationofthefilteriswhatdifferentiatesthesetwomodels. DichoticListeningT