This research compared the performance of younger (mean age = 20.7 yea
rs) and older (mean age = 68.3 years) adults on a memory task that inv
olved pictures, words, and pictures-plus-words as stimuli. The results
, consistent with previous research, indicated an equivalent picture s
uperiority effect for both young and old adults when pictures were com
pared to words. More specifically, although recall scores were signifi
cantly higher for younger adults compared to older adults, the superio
r recall scores for pictures versus words did not differ between the a
ge groups. However, the performance of older adults declined markedly,
compared to the younger adults, in the picture-plus-word condition. T
hese findings are interpreted as providing support for a divided atten
tion model, which involves effortful processing of both visual and ver
bal aspects of stimuli. This situation of divided attention appears to
put older adults at a relative disadvantage compared to young adults.