Introduction to Cognitive Psychology - Department of Psychological ...

Prof. Greg Francis 8/12/11Whole report results!! Subjects report 4.5 letters onaverage (Sperling, 1960)!! Subjects claim they saw moreletters, but lost the percept whilethey reported!!they cannot report fast enough!! How can we tell if percept is lost?Purdue UniversityPartial report!! Same type of letter matrix!! Indicate which row to report after the matrixdisappears!! choice of row is random!! Suppose the subject reports 3 of 4 letters fromany row!! =>3/4ths of each row was available!! ==> entire field was available!! This is essentially how college tests aredesigned!Purdue UniversityPartial reportPartial report!! Write down letters from the indicated row!! Write down letters from the indicated rowPurdue UniversityZ K O LU Y V NC S D PPurdue UniversityPartial reportSensory memory!! Write down letters from the indicated row!! Temporal characteristics!! delayPurdue UniversityPurdue UniversityPSY 200: Intro. to Cognitive Psychology 2